Patent Publication Number: US-2023149771-A1

Title: Exercise Machine

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     The present application is a continuation of U.S. application Ser. No. 17/113,306 filed on Dec. 7, 2020 which issues as U.S. Pat. No. 11,554,288 on Jan. 17, 2023 (Docket No. LAGR-232), which is a continuation of U.S. application Ser. No. 15/854,242 filed on Dec. 26, 2017 now issued as U.S. Pat. No. 10,857,418 (Docket No. LAGR-146), which claims priority to U.S. Provisional Application No. 62/438,542 filed Dec. 23, 2016 (Docket No. LAGR-088). Each of the aforementioned patent applications, and any applications related thereto, is herein incorporated by reference in their entirety. 
    
    
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
     Not applicable to this application. 
     BACKGROUND 
     Field 
     Example embodiments in general relate to an exercise machine which is capable of having its lift, roll, and/or pitch adjusted with respect to a base so as to provide a plurality of positions of the exercise machine with respect to the base. 
     Related Art 
     Any discussion of the related art throughout the specification should in no way be considered as an admission that such related art is widely known or forms part of common general knowledge in the field. 
     The exercise field is well known. Those skilled in the art will appreciate that traditional exercise machines with a sliding, substantially horizontal exercise platform, such as a Pilates machine, are intended to maintain a stable and substantially horizontal surface upon which to exercise. Fitness trainers have long known that repeatedly exercising on the same type of machine promotes what is referred to as muscle memory, the condition wherein various muscle-related tasks are easier to perform after previous practice, even if the task has not been performed for a while. It is as if the muscles “remember”. Further, trainers have long understood that to break the muscle memory cycle, it is beneficial to continually change the types of exercises and/or types of exercise machines. 
     Traditional exercise machines that cannot be substantially changed therefore fail to provide the variations needed to prevent or break the muscle memory cycle. 
     Fitness trainers will readily appreciate the training benefits of a machine that could continually be changed throughout an exercise routine as a means to continually stimulate new muscles, and prevent muscle memory. 
     SUMMARY 
     An example embodiment is directed to an exercise machine. The exercise machine includes a base and an exercise machine movably connected to the base. The exercise machine may include a track, a carriage slidably connected to the track, and a biasing member attached to the carriage to apply a resistive force to the carriage. A plurality of actuators may be connected between the base and the exercise machine. The plurality of actuators may be utilized to adjust a pitch angle or a roll angle of the exercise machine with respect to the base. The plurality of actuators may also be utilized to lift or lower the exercise machine at a constant angle of pitch and/or roll inclination. 
     There has thus been outlined, rather broadly, some of the embodiments of the exercise machine in order that the detailed description thereof may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional embodiments of the exercise machine that will be described hereinafter and that will form the subject matter of the claims appended hereto. In this respect, before explaining at least one embodiment of the exercise machine in detail, it is to be understood that the exercise machine is not limited in its application to the details of construction or to the arrangements of the components set forth in the following description or illustrated in the drawings. The exercise machine is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of the description and should not be regarded as limiting. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Example embodiments will become more fully understood from the detailed description given herein below and the accompanying drawings, wherein like elements are represented by like reference characters, which are given by way of illustration only and thus are not limitative of the example embodiments herein. 
         FIG.  1    is an exemplary diagram showing an isometric view of an improved exercise machine in accordance with an example embodiment. 
         FIG.  2    is an exemplary diagram showing a right side view of an improved exercise machine in accordance with an example embodiment. 
         FIG.  3 A  is an exemplary diagram showing a right side view of an improved exercise machine in a lowered position in accordance with an example embodiment. 
         FIG.  3 B  is an exemplary diagram showing a right side view of an improved exercise machine in a raised position in accordance with an example embodiment. 
         FIG.  4    is an exemplary diagram showing a top view of an improved exercise machine in accordance with an example embodiment. 
         FIG.  5    is an exemplary diagram showing a bottom view of an improved exercise machine in accordance with an example embodiment. 
         FIG.  6    is an exemplary diagram showing front end view of an improved exercise machine in accordance with an example embodiment. 
         FIG.  7    is an exemplary diagram showing back end view of an improved exercise machine in accordance with an example embodiment. 
         FIG.  8    is an exemplary diagram showing side end view of tilted and rotated exercise machine in accordance with an example embodiment. 
         FIG.  9 A  is an exemplary diagram showing a right side view of an inclined exercise machine and an exerciser in accordance with an example embodiment. 
         FIG.  9 B  is an exemplary diagram showing a right side view of a declined exercise machine and an exerciser in accordance with an example embodiment. 
         FIG.  10    is an exemplary diagram showing a right side view of a horizontally positioned exercise machine platform and an exerciser in accordance with an example embodiment. 
         FIG.  11 A  is an exemplary diagram showing front end view of a right rotated exercise machine and an exerciser in accordance with an example embodiment. 
         FIG.  11 B  is an exemplary diagram showing front end view of a left rotated exercise machine and an exerciser in accordance with an example embodiment. 
         FIG.  12 A  is a frontal view of an exercise machine in accordance with an example embodiment. 
         FIG.  12 B  is a frontal view of an articulating connector of an exercise machine in a first orientation in accordance with an example embodiment. 
         FIG.  12 C  is a frontal view of an articulating connector of an exercise machine in a second orientation in accordance with an example embodiment. 
         FIG.  13 A  is an exemplary diagram showing a top view of an improved exercise machine in accordance with an example embodiment. 
         FIG.  13 B  is an exemplary diagram showing a top view of a variation of an exercise machine in accordance with an example embodiment. 
         FIG.  14 A  is an exemplary diagram showing an isometric view of a movable carriage assembly of an improved exercise machine in accordance with an example embodiment. 
         FIG.  14 B  is an exemplary diagram showing section view through a movable carriage assembly of an improved exercise machine in accordance with an example embodiment. 
         FIG.  15 A  is an exemplary diagram showing an isometric view of a variation of a movable carriage assembly in accordance with an example embodiment. 
         FIG.  15 B  is an exemplary diagram showing section view through a variation of a movable carriage assembly in accordance with an example embodiment. 
         FIG.  16    is an exemplary diagram showing a top view of a movable carriage and stationary end platform in accordance with an example embodiment. 
         FIG.  17    is an exemplary diagram showing a top view of a variation of a movable carriage in accordance with an example embodiment. 
         FIG.  18    is an exemplary illustration of a flow chart of an improved exercise machine in accordance with an example embodiment. 
         FIG.  19    is an exemplary illustration of a block diagram of one control means of an improved exercise machine in accordance with an example embodiment. 
         FIG.  20    is an exemplary diagram of two views of an improved exercise machine and table of actuator positions to change the plane of exercise in accordance with an example embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Various aspects of specific embodiments are disclosed in the following description and related drawings. Alternate embodiments may be devised without departing from the spirit or the scope of the present disclosure. Additionally, well-known elements of exemplary embodiments will not be described in detail or will be omitted so as not to obscure relevant details. Further, to facilitate an understanding of the description, a discussion of several terms used herein follows. 
     The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments. Likewise, the term “embodiments” is not exhaustive and does not require that all embodiments include the discussed feature, advantage or mode of operation. 
     Although more than one embodiment is illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a wide variety of alternate and/or equivalent implementations may be substituted for the specific embodiments shown and described without departing from the scope of the present disclosure. This application is intended to cover any adaptations or variations of the embodiments discussed herein. 
     As shown throughout the figures, an exemplary embodiment may comprise a base  100  and an exercise machine  600  movably connected to the base  100 . The exercise machine may comprise a track  105 ,  108 , a carriage  200 ,  205  slidably connected to the track  105 ,  108 , and a biasing member  106  attached to the carriage  200 ,  205  to apply a resistive force to the carriage  200 ,  205 . 
     A plurality of actuators  101 ,  102 ,  103 ,  104  may be connected between the base  100  and the exercise machine  600 . The plurality of actuators  101 ,  102 ,  103 ,  104  may be adapted to adjust the exercise machine  600  with respect to the base  100 . More specifically, the plurality of actuators  101 ,  102 ,  103 ,  104  may be adapted to rotate the exercise machine  600  about up to two axes (pitch and roll) as well as lift or lower the exercise machine  600  along a vertical axis with respect to the base  100 . 
     The plurality of actuators  101 ,  102 ,  103 ,  104  may be operable to lift or lower the exercise machine  600  along a vertical axis at a constant level of inclination with respect to the base  100 . The plurality of actuators  101 ,  102 ,  103 ,  104  may be operable to move the exercise machine  600  about a first axis with respect to the base  100 . In some embodiments, the plurality of actuators  101 ,  102 ,  103 ,  104  may also be operable to move the exercise machine  600  about a second axis with respect to the base  100 . By way of example, the first axis could comprise a pitch axis of the exercise machine  600 , and the second axis could comprise a roll axis of the exercise machine  600 , or vice versa. 
     The exercise machine  600  may include a first platform  201 ,  206  near a first end of the exercise machine  600  and a second platform  202 ,  207  near a second end of the exercise machine  600 . The plurality of actuators  101 ,  102 ,  103 ,  104  may be operable to lift or lower the first platform  201 ,  206  and the second platform  202 ,  207  along a vertical axis with respect to the base  100 . 
     The plurality of actuators  101 ,  102 ,  103 ,  104  may comprise a first actuator  101  connected between a first end of the base  100  and a first end of the exercise machine  600  and a second actuator  103  connected between a second end of the base  100  and a second end of the exercise machine  600 . The plurality of actuators  101 ,  102 ,  103 ,  104  may also comprise a third actuator  102  connected between a first end of the base  100  and a first end of the exercise machine  600  and a fourth actuator  104  connected between a second end of the base  100  and a second end of the exercise machine  600 . 
     A plurality of articulating connectors  113  may be utilized to connect each of the plurality of actuators  101 ,  102 ,  103 ,  104  to the exercise machine  600 . The articulating connectors  113  may also be utilized to connect each of the plurality of actuators  101 ,  102 ,  103 ,  104  to the base  100 . Extension of each of the actuators  101 ,  102 ,  103 ,  104  together may be operable to lift the exercise machine  600  with respect to the base  100 . Retraction of each of the plurality of actuators  101 ,  102 ,  103 ,  104  may be operable to lower the exercise machine  600  with respect to the base  100 . 
     In some embodiments, a controller  500  may be communicatively interconnected with each of the plurality of actuators  101 ,  102 ,  103 ,  104 . A mobile device  502  such as a laptop computer, smart phone, tablet, or the like may be adapted to transmit a signal to the controller  500  for adjusting each of the plurality of actuators  101 ,  102 ,  103 ,  104 . In some embodiments, a wired device  501  such as a remote control may be connected to the controller  500  for adjusting each of the plurality of actuators  101 ,  102 ,  103 ,  104 . 
     An exemplary method of exercising on an exercise machine  600  may comprise the steps of providing an exercise machine  600  movably connected to a base  100  as described herein and positioning an exerciser  400  on the exercise machine  600  to perform a first exercise. The exercise machine  600  may be moved about a pitch axis in a first direction and about a roll axis in a second direction, as well as lifted along a vertical axis at a constant angle of inclination with respect to the base  100  to a lifted position. The exerciser  400  may perform the first exercise during or after the steps of moving and lifting the exercise machine  600 . 
     In an exemplary embodiment, the exercise machine  600  may be pivoted about the pitch axis in the second direction to a second position; with the second position having a different attitude with respect to the first position. The exerciser  400  may perform a second exercise during or after the step of pivoting the exercise machine  600 . 
     In another exemplary embodiment, the exercise machine  600  may be pivoted about the roll axis in the second direction to a second position; with the second position having a different attitude with respect to the first position. The exerciser  400  may perform a second exercise during or after the step of pivoting the exercise machine  600 . 
     In yet another exemplary embodiment, the exercise machine  600  may be lowered along a vertical axis with respect to the base to a lowered position; with the lowered position having a different altitude with respect to the lifted position. The exerciser  400  may perform a second exercise during or after the step of pivoting the exercise machine  600 . 
       FIG.  1    is an exemplary diagram showing an isometric view of an improved exercise machine comprising a base  100 , a first actuator  101 , a second actuator  103 , a third actuator  102  and a fourth actuator  104  which is not shown in  FIG.  1    because it is obscured by the exercise machine  600  in the isometric perspective. The ends of the actuators  101 ,  102 ,  103 ,  104  distal to the base  100  may be rotationally affixed to an exercise machine  600  comprising a movable carriage  200  a first platform  201 , a second platform  202 , a back right handle assembly  300 , a front right handle assembly  302 , a back left handle assembly  301 , a front left handle assembly  303 , and a track  105  such as a longitudinal beam assembly extending substantially the length of the machine between the first platform  201 , and the second platform  202 . 
     The type of actuator  101 ,  102 ,  103 ,  104  used may vary in different embodiments. The actuators  101 ,  102 ,  103 ,  104  may be motorized. The actuators  101 ,  102 ,  103 ,  104  may comprise any device used to create linear motion by moving an extensible/retractable first portion of an actuator relative to a second portion of the actuator; the distal ends of the first and second portions being affixed to a first and second structure of an exercise machine  600 . The exemplary types of actuators  101 ,  102 ,  103 ,  104  shown and described herein are not intended to be limiting, and may comprise one or more types of actuators well known to those skilled in the art including, but not limited to linear, electrical, mechanical, pneumatic, hydraulic, and/or electromechanical actuators. 
     In practice, the movable carriage  200  may be slidable substantially the distance between the proximate edges of the opposed platforms  201 ,  202 . The movable carriage  200 , which may include a plurality of wheels not shown but which will be later described, may be slidable upon a track  105 , such as pair of rails affixed to the lateral sides of a beam assembly. 
     A biasing force is applied to the movable carriage  200  so as to create exercise resistance when an exerciser  400  moves the carriage against the biasing force; the biasing force thereby created by removably attaching at least one biasing member  106  between the movable carriage and preferably one end of the beam assembly. The biasing members  106  may comprise one or more springs, elastic bands, electromagnetic devices capable of creating variable resistance, an eddy current brake, a friction inducing clutch, or other resistance inducing devices and methods that create a resistive force substantially linearly and substantially aligned with the longitudinal axis of the exercise machine  600 . In some embodiments, the biasing members  106  may be positioned within the internal area of the track  105  such as a beam assembly. 
       FIG.  2    is an exemplary diagram showing a right side view of an improved exercise machine  600 . An exercise machine  600  is comprised of a track  105  extending substantially the length of the machine, a second platform  202  centered over the central axis of the track  105 , a front right handle assembly  302  and a front left handle assembly  303  consisting of substantially a mirror image of the right handle assembly  302  are respectively positioned lateral to the right and left ends of the first platform  201 . A back right handle assembly  300 , and substantially a mirror image of the back right handle assembly are respectively positioned lateral to the right and left ends of the first platform  201 . The exercise machine is supported by a back right linear actuator  101  and back left linear actuator not shown, a front right linear actuator  103  and front left linear actuator not shown, one end of each actuator rotatably affixed to a base support structure  100 , and the opposed distal ends of each actuator rotatably affixed to the upper structure proximate to the opposed ends of the beam assembly. 
     A movable carriage  200  may be slidable along a track  108  formed of parallel sliding rails affixed to each lateral edge of a beam assembly; the rails extending parallel to and substantially the length of the beam assembly. In practice, a biasing force BF may be applied to the movable carriage  200  by one or more biasing members  106 ; one end of the biasing members  106  being removably attached to the movable carriage  200 , and an opposed end of the biasing members  106  affixed to the exercise machine  600 . 
       FIG.  3 A  is an exemplary diagram showing a right side view of an improved exercise machine in a lowered position. In the drawing, the horizontal plane of the first and second platforms  201 ,  202  and the movable carriage  200  when the exercise machine  600  is in a lowered starting position substantially comprising a horizontal plane  203 . In the lowered position, the actuators  101 ,  102 ,  103 ,  104  are retracted so as to minimize the vertical distance between the base  100  and the track  105 . 
       FIG.  3 B  is an exemplary diagram showing a right side view of an improved exercise machine  600  in a raised position. The lowered starting position of the substantially horizontal plane  203  of the platforms  201 ,  202  can be readily seen. It is sometimes preferable to change the position of the exercise machine  600  to perform certain exercises. In  FIG.  3 B , the actuators  101 ,  102 ,  103 ,  104  are rotatably connected between the base  100  and the substantially opposed ends of the exercise machine  600  are shown extended following actuation. The extended actuators  101 ,  102 ,  103 ,  104  increase the vertical distance between the base  100  and the exercise machine  600 ; thereby changing the substantially horizontal plane of the platforms just described to a new elevation indicated by a second dashed line  204 . Thus, the exercise machine  600  has been lifted along a vertical axis with respect to the base  100 . 
       FIGS.  3 A and  3 B  illustrate the lifting and lowering of the exercise machine  600  with respect to the base  100  along a vertical axis. It should be appreciated that the exercise machine  600  may maintain a constant angle of inclination (roll or pitch) as it is being lifted or lowered with respect to the base  100 . For example, if the exercise machine  600  is pitched at an angle, the pitch angle will be maintained as the exercise machine  600  is lifted or lowered with respect to the base  100 . 
     As another example, if the exercise machine  600  is rolled at an angle, the roll angle will be maintained as the exercise machine  600  is lifted or lowered with respect to the base  100 . As yet another example, if the exercise machine  600  is both rolled and tilted at an angle, both the roll and tilt angle may be maintained uniformly as the exercise machine  600  is lifted or lowered with respect to the base  100 . 
     This may be accomplished by maintaining uniform extension/retraction of the actuators  101 ,  102 ,  103 ,  104  (same velocity and acceleration) while retaining the relative positioning of the actuators  101 ,  102 ,  103 ,  104  as the actuators  101 ,  102 ,  103 ,  104  are extended or retracted. For example, if the first actuator  101  and second actuator  103  are both extended by twenty percent, and the third actuator  102  and fourth actuator  104  are both extended by zero percent, the exercise machine  600  would be lifted or lowered at a constant angle of inclination by uniformly extending the four actuators  101 ,  102 ,  103 ,  104  a uniform distance at a uniform speed; with the first and second actuators  101 ,  103  starting movement from the twenty percent extended position at the same time as the third and fourth actuators  102 ,  104  start movement from the zero percent extended position. 
       FIG.  4    is an exemplary diagram showing a top view of an improved exercise machine. One end of each of four actuators  101 ,  102 ,  103 ,  104  are rotatably attached to a base  100 , and the opposed ends of the actuators  101 ,  102 ,  103 ,  104  are rotatably affixed to the exercise machine  600 ; the points of connection being obscured by certain elements of the exercise machine  600 . A pair of platforms  201 ,  202  is affixed to substantially opposed ends of the exercise machine  600 . 
     The back right and left handle assemblies  300 ,  301  are affixed to their respective sides of the first platform  201 , and a front right and left handle assembly  302 ,  303  are affixed to their respective sides of the second platform  202 . A right push pad  304  may be affixed to the front right handle assembly  302 , and a left push pad  305  may be affixed to the front left handle assembly  303 . A movable carriage  200  may be slidably affixed to the exercise machine  600  which is adapted to slide reciprocally substantially the length of the exercise machine  600  between the platforms  201 ,  202 . 
       FIG.  5    is an exemplary diagram showing a bottom view of an improved exercise machine  600 . In the embodiment shown, one end of each of four actuators  101 ,  102 ,  103 ,  104  are rotatably attached to a base  100 , and the opposed ends of the actuators  101 ,  102 ,  103 ,  104  are rotatably affixed to actuator mounting members  112  affixed to the exercise machine  600 . A pair of platforms  201 ,  202  are affixed to substantially opposed ends of the exercise machine  600 . The back right and left handle assemblies  300 ,  301  may be affixed to their respective sides of the first platform  201 , and a front right and left handle assembly  302 ,  303  are affixed to their respective sides of the second platform  202 . A movable carriage  200  may be slidably affixed to the exercise machine  600 , and slides reciprocally substantially the length of the exercise machine  600  between the platforms  201 ,  202 . 
     In an exemplary embodiment, the actuators  101 ,  102 ,  103 ,  104  may be the only supporting members extending between the base  100  and the exercise machine  600 . The manner in which the actuators  101 ,  102 ,  103 ,  104  are connected between the base  100  and the exercise machine  600  may vary in different embodiments. Further, the size, shape, orientation, and positioning of the actuators  101 ,  102 ,  103 ,  104  may vary in different embodiments. 
     An exemplary arrangement of actuators  101 ,  102 ,  103 ,  104  is shown in  FIG.  4   . As shown, a first actuator  101  extends between a first end of the base  100  and a first end of the exercise machine  600 . A second actuator  103  extends between a second end of the base  100  and a second end of the exercise machine  600 . A third actuator  102  extends between a first end of the base  100  and a first end of the exercise machine  600 . A fourth actuator  104  extends between a second end of the base  100  and a second end of the exercise machine  600 . It should be appreciated that this is merely an exemplary embodiment, and other positioning may be utilized. 
     In the exemplary embodiment shown in the figures, the first and third actuators  101 ,  102  each extend from different points on the first end of the base  100 . The second and fourth actuators  103 ,  104  extend from different points on the second end of the base  100 . The manner in which the actuators  101 ,  102 ,  103 ,  104  are connected to the base  100  may vary, including the use of articulating connectors  113  as described herein. 
     The actuators  101 ,  102 ,  103 ,  104  may adjust in orientation as they extend and/or retract; such as by rotating or pivoting about the articulating connectors  113  as shown in the exemplary figures. The actuators  101 ,  102 ,  103 ,  104  may be connected to both the base  100  and the exercise machine  600  by articulating connectors  113  to allow maneuverability of the actuators  101 ,  102 ,  103 ,  104  on both their proximal and distal ends when extending or retracting. In other embodiments, only one end (distal or proximal) of the actuators  101 ,  102 ,  103 ,  104  may be connected by an articulating connector  113 ; with the opposing end being connected by another linkage such as a clasp, bracket, or hinge. 
     In the exemplary embodiment shown in the figures, the first and third actuators  101 ,  102  are connected at their distal ends to the exercise machine  600 . The position on the exercise machine  600  to which the distal ends of the first and third actuators  101 ,  102  are connected may vary in different embodiments. The distal ends of the first and third actuators  101 ,  102  may be connected to a position at or near the first end of the exercise machine  600 . In the exemplary figures, the first and third actuators  101 ,  102  are connected to the first platform  201  of the exercise machine  600 . The first and third actuators  101 ,  102  may be parallel with respect to each other or may extend at different angles. 
     In the exemplary embodiment shown in the figures, the second and fourth actuators  103 ,  104  are connected at their distal ends to the exercise machine  600 . The position on the exercise machine  600  to which the distal ends of the second and fourth actuators  103 ,  104  are connected may vary in different embodiments. The distal ends of the second and fourth actuators  103 ,  104  may be connected to a position at or near the second end of the exercise machine  600 . In the exemplary figures, the second and fourth actuators  103 ,  104  are connected to the second platform  202  of the exercise machine  600 . The second and fourth actuators  103 ,  104  may be parallel with respect to each other or may extend at different angles. 
       FIG.  6    is an exemplary diagram showing a front end view of an improved exercise machine  600 . The exercise machine  600  may include a second platform  202  and a front right and left handle assembly  302 ,  303  affixed to a track  105 . The track  105 , platforms  201 ,  202 , and the front right and left handle assemblies  302 ,  303  may be supported above a base  100  by linear actuators  101 ,  102 ,  103 ,  104 . 
       FIG.  7    is an exemplary diagram showing back end view of an improved exercise machine  600 . The drawing shows an first platform  201  and a back right and left handle assembly  300 ,  301  affixed to a track  105 . The track  105 , platforms  201 ,  201 , and the back right and left handle assemblies  300 ,  301  may be supported above a base support structure  100  by linear actuators  101 ,  102 ,  103 ,  104 . 
       FIG.  8    is an exemplary diagram showing a side end view of tilted and rotated exercise machine  600 . It is sometimes preferable to position an exercise machine  600  along a non-horizontal plane (such as a diagonal plane) to overcome muscle memory, and to stimulate muscles that would otherwise not be engaged during an exercise performed on a horizontal plane. 
     In  FIG.  8   , it can be readily seen that the first platform  201  and the back right and left handle assemblies  300 ,  301  have been rotated about the transverse axis  110  to a higher vertical elevation relative to the second platform  202  and front right and left handle assemblies  302 ,  303  by extending the first and third actuators  101 ,  102  to a length that exceeds the length of the second and fourth actuators  103 ,  104 ; the actuators just described being rotatably affixed to the base  100 . 
     In the non-horizontal orientation as shown in  FIG.  8   , a movable carriage  200  slidably attached to the exercise machine  600  will reciprocally slide substantially between the first platform  201  and second platform  202 , sliding up an incline as it moves towards the first platform  201 , and declining as it moves toward the second platform  202 . A resistance force against the movable carriage  200  is created by removably attaching one or more biasing members  106  between the movable carriage  200  and, in some embodiments, the exercise machine  600  structure proximate to the second platform  202 . 
     Further, as shown in the drawing, the exercise machine  600  may be rotated about the longitudinal axis indicated  109  of the track  105  by extending the third actuator  102  to a length that exceeds the length of the first actuator  101 , and correspondingly extending the fourth actuator  104  to a length that exceeds the length of the second actuator  103 . 
     Those skilled in the art will appreciate that coordination between the actuation of all actuators  101 ,  102 ,  103 ,  104  may be beneficial to prevent tension, compression or torsional stresses to be introduced to the exercise machine  600 . Coordination of the simultaneous actuation of the actuators  101 ,  102 ,  103 ,  104  may be preferably managed by a computer program or programmable controller  500 . 
       FIG.  9 A  is an exemplary diagram showing a right side view of an inclined exercise machine  600  supported above a base  100  by a plurality of actuators  101 ,  102 ,  103 ,  104 , and an exerciser  400 . Although first actuator  101  and first inverted actuator  111  are shown, a second back and front actuator are obscured by the proximate actuators because the pair of back, and pair of front actuators are similarly positioned. 
     In  FIG.  9 A , it can be readily seen that the second platform  202  and front handle assembly  302  have been raised in the direction of the arched line and arrow head by extending the second actuator  103  and first actuator  101 , while at the same time, the first platform  201  and handle assembly  300  have been lowered relative to the front of the exercise machine  600  by means of retracting the first actuator  101  and second actuator  103 . 
     An exerciser  400  is shown standing on the inclined movable carriage  200  while gripping the front right handle assembly  302  and front left handle assembly  303 . A movable carriage  200  is slidable along substantially the length of the exercise machine  600 ; the carriage  200  being resistance-biased towards the front end of the machine  600  by one or more biasing members  106 . In practice, the exerciser  400  would perform the instant exercise by extending his legs and pushing his arms forward to move the slidable carriage  200  down the incline in a direction opposed to the resistance force RF created by the one or more biasing members  106 . 
     It should be noted that the method of installing an actuator  101 ,  102 ,  103 ,  104  between the base  100  and exercise machine  600  is not meant to be limiting. In the embodiment shown in  FIG.  9 A , the front inverted actuator  111  is shown with the distal end of the first extensible/retractable portion affixed to the base support structure  100 , and the second portion affixed to the actuator mounting member  112  of the exercise machine  600 . 
       FIG.  9 B  is an exemplary diagram showing a right side view of a declined exercise machine  600  and an exerciser  400 . In  FIG.  9 B , it can be readily seen that the second platform  202  and front handle assembly  302  have been lowered by retracting the second actuator  103  and first actuator  101 , while at the same time, the first platform  201  and handle assembly  300  have been raised relative to the front of the exercise machine  600  in the direction of the arched line and arrow head by means of extending the first actuator  101  and second actuator  102 . 
       FIG.  10    is an exemplary diagram showing a right side view of a horizontally positioned exercise machine  600  and an exerciser  401 . In some instances, it is desirable to exercise the leg muscles. In the drawing, an exerciser  401  is supine upon the movable carriage  200  with his feet placed upon the right push pad  304  and left push pad  305 . The right push pad  304  is affixed to the right handle assembly  302 . The left push pad  305  and left handle assembly  301  are not shown in  FIG.  10    because they are obscured by the right push pad  304  and right handle assembly  300 , but they are mirror image versions of the right push pad  304  and handle assembly  300 . 
     The longitudinal track  105 , and correspondingly the movable carriage  200  are shown aligned substantially horizontally and parallel to the base  100 . The actuators  101 ,  102 ,  103 ,  104  are all extended to predetermined lengths that cause the exercise platforms  201 ,  202  to be aligned substantially horizontally. 
       FIG.  11 A  is an exemplary diagram showing front end view of a right rotated exercise machine and an exerciser. In the drawing, an exerciser  403  is shown standing on the movable carriage assembly not shown because it is obscured by the front stationary platform assembly  202 . Leaning forward, the exerciser  403  stabilizes himself by gripping the front right and front left handle assemblies  302 ,  303 . 
     As previously described, changing the angle of the exercise plane before or during exercising provides for avoiding muscle memory. As can be readily seen, the exercise plane of the movable carriage  200  and second platform  202  is changed by rotating the track  105  about its central axis in the direction of the arched line and arrow head. The first and fourth actuators  101 ,  104  are extended while the second actuator  103  and third actuator  102  are not extended; thereby increasing the vertical dimension between the left side of the exercise machine  600  and the base  100  relative to the right side of the machine  600 . 
     It should be noted that if the exercise machine  600  was previously elevated above the lower default starting position as previously described, the same or similar rotation of the track  105  about its central axis could be similarly achieved by maintaining the position of the fourth actuator  104  and third actuator  102 , and retracting the second actuator  103  and first actuator  101  to lower the right side of the machine  600  relative to the left side of the machine  600 . 
       FIG.  11 B  is an exemplary diagram showing front end view of a left rotated exercise machine  600  and an exerciser  403 . In the embodiment of  FIG.  11 B , the exercise plane of the movable carriage  200  and second platform  202  is changed by rotating the track  105  about its central axis in the direction of the arched line and arrow head by extending the first and second actuators  101 ,  103 , and not actuating the third and fourth actuators  102 ,  104 ; thereby increasing the vertical dimension between the right side of the exercise machine  600  and the base  100  relative to the right side of the machine  600 . 
       FIG.  12 A-C  illustrate an articulating actuator connection.  FIG.  12 A  illustrates an end view of an exercise machine  600  as previously described with a second actuator  103  being rotationally affixed to an actuator mounting member  112  positioned substantially as a corner of the exercise machine  600  as indicated by the dotted line circle. In  FIGS.  12 B and  12 C , an articulating connector  113  such as a Heim joint is shown comprising an actuator mounting member  112  within which a bearing housing  115  and misalignment bearing  114  retained within the bearing housing  115  is positioned. 
     A bearing fastener  117  such as a bolt and nut or clevis pin may inserted through the mounting member  112  and the bore through the misalignment bearing  114 . The articulating connector  113  may be affixed to the distal end  116  of the extensible/retractable portion of the actuator  101 ,  102 ,  103 ,  104 . Although not shown in  FIG.  12 B , the opposed end of the second portion of the linear actuator  101 ,  102 ,  103 ,  104  is preferably affixed to the base support structure using a similar articulating connector  113 . 
     In practice, the bearing housing  115  may be repositioned by rotating the actuator shaft  116  about the central axis of the bearing fastener  117 . Further, the bearing housing  115  may be articulated about the bearing  114  to allow for the shaft  116  to be oriented other than substantially perpendicular to the central axis of the bearing fastener  177 . As can be seen, the actuator shaft  116  may be misaligned to laterally or medially with respect to the position of the actuator mounting member  115  within an angular range indicated by the plus or minus theta angles shown on  FIGS.  12 B and  12 C . 
       FIG.  13 A  is an exemplary diagram showing a top view of an improved exercise machine  600 . More specifically, one variation of an improved exercise machine provides for a second platform  202 , a first platform  201 , and a movable carriage  200  with integral outboard round handles  208  with central axis of a portion of the handle that is substantially aligned with the central longitudinal axis of the track  105 , and portions at the distal ends of the handles  208 ,  211  that are substantially aligned with the transverse axis of the exercise machine  600 ; the opposed distal ends being affixed to the platforms  201 ,  202 . The round handles  300 ,  301  on the left side of the machine  600  are preferably mirror image versions of the round handles  302 ,  303  on the right side of the machine. 
     The round cross section profile of the handles  208 ,  211  may provide for easy and cost-effective manufacturing, while also providing for a comfortable natural grip by the exerciser&#39;s  403  hands. 
     As previously discussed, in practice, one or more biasing members  106  may be removably attached between the movable carriage  200  and the exercise machine  600  structure substantially at a front end of the machine  600 . The exercise force required to move the movable carriage  200  in a direction opposed to the end of the machine  600  to which the biasing members  106  are attached must be sufficient to overcome the resistance force of the biasing members  106 . The resistance force may be increased or decreased by attaching or detaching additional biasing members  106 . 
       FIG.  13 B  is an exemplary diagram showing a top view of a variation of an exercise machine  600 . In a more traditional configuration, an exercise machine  600  is comprised of a plurality of supporting feet  107  extending between the floor surface and a machine  600  structure; a machine structure  600  comprising two parallel longitudinal rails  108 , a pair of platforms  206 ,  207 , and a movable carriage  205  slidable upon the parallel rails  108  substantially the length of the rails  108  between the platforms  206 ,  207 . Biasing members  106  removably attached between the movable carriage  200  and the machine  600  structure provide for variable exercise resistance as previously described. 
     One variation of the exercise platforms  206 ,  207  provides for openings within the platform  206 ,  207 ; thereby creating additional lateral projections within the perimeter of the platforms  206 ,  207  used by the exerciser  403  for gripping or pushing against during exercise. 
       FIG.  14 A  is an exemplary diagram showing an isometric view of a movable carriage  200  of an improved exercise machine  600  comprising a platform center pad  209  extending substantially the length of the carriage  200 , a plurality of trolley wheel assemblies  216  that engage with the parallel rails  108  of the track  105  as previously described, and a left and right outboard round handle  208  providing for hand gripping surfaces on the lateral portions of the carriage  200 , and handle corners  212  providing for gripping surfaces on the opposed corners on the front and back portions of the carriage  200 . 
     The platform center pad  209  is typically comprised of an internal structure that is covered with a resilient material of nominal thickness providing for comfortable kneeling, sitting or standing on by an exerciser  403 . 
     In  FIG.  14 A , the opposed ends of the exercise pad  209  extend substantially the length of the carriage  200 , while the lateral edges of the pad  209  are formed with a geometry that creates voids  218  between the pad  209  and outboard round handles  208 , and at the same time creates lateral projections  213  that provide for additional gripping or pushing surfaces of the carriage. In some instances, the void may comprise a pad slot  210  into which a hand or foot may be inserted for gripping, pushing or pulling. Further, the present invention may provide for affixing a pair of inboard round handles  211  that provide a more stable and solid gripping surfaces within the perimeter of the carriage  200 . 
       FIG.  14 B  is an exemplary diagram showing section view through a movable carriage  200  of an improved exercise machine  600 . More specifically, a view through section S 1  of  FIG.  14 A  cut through a movable carriage  200  is shown comprising a platform center pad  209  of a nominal thickness to provide cushioning for an exerciser  403 , a lateral projection  213  of the pad  209  to provide for a gripping or pushing surface, an outboard round handle  208  positioned along the lateral perimeter of the carriage  200 , and a pad void  218  formed between the pad  209  and outboard round handle  208 . 
     A platform  214  provides for the mounting of the pad  209  and outboard round bar  208  to the carriage  200 , and further provides for the attachment of a plurality of trolley wheel assemblies  216  into which a plurality of trolley wheels  215  may be installed. The trolley wheels  215  and wheel supporting members are positioned substantially equal lateral dimensions from the central axis of the machine  600  so that the wheels  215  engage parallel rails  108  affixed to the track  105 . The trolley wheels  215  provide for retaining the carriage  200  to the track  105  while allowing the carriage  200  to roll substantially between the platforms  201 ,  202  along the parallel rails  108 . 
     As can be seen, the outboard round handle  208  provides for a more comfortable and surer grip by an exerciser&#39;s hand  402  when compared to the substantially vertical surfaces and right-angle corner of the platform center pad  209 , even if the right angle edge is rounded to minimize sharp corners. Those skilled in the art will immediately appreciate the advantages of a round bar handle over a substantially rectilinear cross section of a resilient exercise pad when used as a hand gripping surface. 
       FIG.  15 A  is an exemplary diagram showing an isometric view of a variation of a movable carriage assembly variation  205 . Manufacturing cost efficiencies sometimes drive certain design features that are acceptable to the exerciser  400 . In the drawing, a carriage pad  217  may be produced as a single finished piece using well known thermoforming processes. A pad is produced with certain areas void  218  of pad material, thereby providing for penetrations through the carriage pad that create laterally projecting handles  219  and a perimeter  220  section that can be used as a handle, the perimeter handle extending substantially the length of the carriage pad. 
       FIG.  15 B  is an exemplary diagram showing section view through a variation of a movable carriage assembly. A view through section S 2  of  FIG.  15 A  cut through a movable carriage  200  is shown comprising a carriage pad  217  of a nominal thickness to provide cushioning for an exerciser  400 , a laterally projecting handle  219  of the pad  217  providing for a gripping or pushing surface substantially aligned at an obtuse angle relative to the central longitudinal axis of an exercise machine  600 , and a pad perimeter  220  section that provides for a gripping handle with a central axis substantially aligned with the central longitudinal axis of an exercise machine  600 . It should be noted that in some embodiments, the geometry of the pad  217  on one side of the centerline may be substantially a mirror image variation of the opposed side of the pad  217 . 
     As can be readily seen, the thumb of a hand  402  may be comfortably inserted through the pad void  218  between the pad perimeter  220  and the laterally projecting handle  219 , thereby providing for a cross sectional portion of the pad  217  dimensionally appropriate for use as a handle  219 . 
       FIG.  16    is an exemplary diagram showing a top view of a movable carriage  200  and a first platform  201 , each being substantially comprised of a platform center pad  209 , two outboard round handles  208  positioned on the opposed lateral sides of the carriage  200 ; the opposed ends of the outboard round handles  208  being affixed to handle corners  212  and the handle corners further being affixed to the platform center pad  209 . It should be noted that a second platform  202  may be substantially a mirror image of the first platform  201 . 
     It should be noted that although not shown, various structural members may be used on the underside of the platform center pad  209 , outboard round handles  208 , handle corners  212 , and the connection points between the pad  209 , corner handles  212  and outboard handles  208  using well-known devices and/or methods. It is not the intention to limit the method of affixing the pad  209  and handles  208  to the structure of a movable carriage  200 . 
     The geometry of the platform center pad  209  of the movable carriage  200  provides for a void  218  to be formed between the opposed perimeter edges of the pad and the perimeter outboard round handle  208  and handle corners  213 . Further, the geometry results in the creation of a plurality of lateral projections  213  that may be used as gripping or pushing surfaces for an exerciser&#39;s hands or feet. 
     As previously described, in practice, a force is applied by an exerciser  400  to a movable carriage  200  to overcome a resistance force RF created by one or more biasing members  106  but removably attachable between a stationary exercise machine  600  and a movable carriage  200 ; the exercise force vector being applied substantially aligned with the central longitudinal axis of the exercise machine  600 . Those skilled in the art will therefore appreciate that the central axis of an efficient handle used to push or pull a movable carriage  200  along the longitudinal axis of the machine  600  and against a resistance force would preferably be oriented substantially perpendicular to the central axis of the exercise machine  600  and biasing members  106 . 
     In  FIG.  16   , a pair of inboard round handles  211  are illustrated as being affixed to the platform center pad  209  of the movable platform  200  with the distal ends of each handle  211  projecting toward the outboard round handle  208 . A void  218  remains between the outboard round handle  208  and the projecting distal ends of the inboard round handle  211  to allow an exerciser  400  to insert a hand  402  into the void  218  to easily grasp the outboard round handle  208 . 
     It should be noted that the inboard round handles  211  may be positioned at any desired location along the length of the carriage  200 , for instance, at a dimension that is half of the length between the front and back of the carriage  200 , and that the position of the handles  211  as shown in the drawing are not meant to be limiting. 
     One variation of the inboard round handle  211  is a cross handle  222 . Two opposed cross handles  222  are shown in  FIG.  16    as affixed at their proximate ends to a platform center pad  209 ; with their distal ends affixed to an outboard round handle  208  or to a mounting member that supports the outboard round handle  208 . A cross handle  222  affixed at both ends may withstand the application of higher pushing or pulling forces resulting from exercising against a larger force created by the biasing members  106 . Further, a cross handle  222  may provide for increased handle length as may be desired when using the handle  222  as a foot push bar. 
     Further, the void  218  formed between the center pad of the first platform  201  and the two outboard round handles  208  and handle corners  212  positioned on the opposed lateral sides of the platform  201  provide for gripping surfaces substantially the perimeter of the platform  201 . 
       FIG.  17    is an exemplary diagram showing a top view of a variation of a movable carriage  200  as just described. For certain exercises, it may be desirable to have one or more captive inboard handles  221  located at various positions within the platform center pad  209 . In  FIG.  17   , it can be readily observed that each end of each handle  221  is affixed within a void  218  formed through the platform center pad  209 ; the central axis of the handles  221  being substantially perpendicular to the central axis of the carriage  200  and exercise machine  600 . Although the drawing shows that the captive inboard handles  221  are positioned within a substantially rectangular void  218  through the platform center pad  209 ; the geometry of the void  218  is not limiting, and the handle  221  may be affixed for example within a circular void  218  through the platform center pad. 
     The dimension of the void  218  between the front and back surfaces of the captive inboard handle  221  may be be sufficient to accommodate the insertion of a hand  402  or foot of an exerciser  400  facing either the front or back of the carriage  200 . 
       FIG.  18    is an exemplary illustration of a flow chart  507  listing one preferred sequence of starting up and operating an improved exercise machine  600 . The steps shown in the drawing start with an exerciser  400  or trainer determining which exercise will be performed. 
     Based on the selected exercise, settings for the four actuators  101 ,  102 ,  103 ,  104  may be determined. The determination of the actuator  101 ,  102 ,  103 ,  104  positions may be preprogrammed, for example, into a controller  500  or software application, or may be determined ad hoc by the trainer or exerciser  400 . The trainer or exerciser  400 , in determining the actuator  101 ,  102 ,  103 ,  104  positions, sends communication to the controller  500  via a mobile device  502 , or in one variation, by use an analog or digital signal inputting wired device  501  such as a joystick. 
     Having received the signal from the exerciser  400  or trainer via either a mobile device  502  or wired device  501 , the controller  500  actuates the appropriate actuators  101 ,  102 ,  103 ,  104  by activating the actuator motors, or if using pneumatic or hydraulic actuators, by opening the appropriate valves to control fluid flow in communication with the preferred actuators  101 ,  102 ,  103 ,  104 . 
     Upon the exercise platforms  201 ,  202  and/or carriage  200  reaching the desired plane, the exerciser  400  begins the exercise. After completing the given exercise on the instant position of the exercise platforms  201 ,  202  and/or carriage  200 , the exerciser  400  or trainer determines the next exercise in the workout sequence, and repositions the exercise machine  600  by repeating the process just described. 
     When the last repetition of the last exercise is completed, the exerciser  400  or trainer sends a signal to the controller  500 , such as by a wired device  501  or mobile device  502 ; the signal thereby directing all of the actuators  101 ,  102 ,  103 ,  104  to return to the lowest, fully retracted state that returns the exercise machine  600  to the lowest level, positioned on a substantially horizontal plane. 
     It should be noted that a trainer may elect to change the positioning of the exercise machine  600  during an exercise rather than waiting until all of the repetitions of a particular exercise are complete. The trainer may change the positioning of the exercise machine  600  during the performance of an exercise by repeating the steps just described. 
       FIG.  19    is an exemplary illustration of a block diagram of one control method of an improved exercise machine. In order to minimize torsional, compressive or tensile stresses throughout the exercise machine  600  structure, at least two diagonally opposed actuators  101 ,  102 ,  103 ,  104  must be actuated in unison, one extending while the opposed actuator  101 ,  102 ,  103 ,  104  is retracting. In some cases, all four actuators  101 ,  102 ,  103 ,  104  will move in unison so that a new plane and/or elevation of the exercise machine  600  may be achieved. Therefore, an exemplary method of controlling the four actuators  101 ,  102 ,  103 ,  104  is by a software program that ensures that the preferred relative positions of each actuator  101 ,  102 ,  103 ,  104  to the others is maintained throughout the exercise machine  600  repositioning. Therefore, a program may be installed in a processor in communication with the controller  500 , or on the transmitting device  501 ,  502 . 
     In one variation, the program is installed on a controller  500 . A signal is sent to the controller  500  by an exerciser or trainer using a hard wired device  501  or a mobile device  502  in communication with the controller  500 . The controller  500 , having received the instructions from the wired device  501  or mobile device  502 , directs the positions of the first actuator  503 , second actuator  504 , third actuator  505  and forth actuator  506  to simultaneously extend, retract or remain unchanged to therefore reposition the exercise platforms to the preferred new position. Although  FIG.  19    illustrates both a wired device  501  and a mobile device  502 , it should be appreciated that either may be used individually; and that the methods and systems described herein need not rely on both a wired device  501  and a mobile device  502 . 
       FIG.  20    is an exemplary diagram of two views of an improved exercise machine  600  and table of actuator positions to change the plane of exercise. More specifically, in the embodiment in  FIG.  20   , various states of possible exercise machine  600  positioning are shown. For reference, a top view of an exercise machine  600  as previously described is shown supported above a base  100  by four actuators  101 ,  102 ,  103 ,  104 . 
     Further, a side view of an exercise machine  600  as previously described is shown supported above a base  100  by four actuators  101 ,  102 ,  103 ,  104  extended to various lengths to illustrate as three examples, a first height above the floor, a second height, and a third height indicated by the dotted lines as Level  1 , Level  1 , and Level  3 . It should be noted that, in practice, the three illustrative positions above the floor just described may be infinite within the minimum retracted length, and maximum extended length of the actuators  101 ,  102 ,  103 ,  104 . 
     The opposed ends of the exercise machine  600  may be tilted up or tilted down relative to the opposed end, and the exercise machine  600  may be further rotated about the longitudinal axis of the exercise machine  600  by extending, retracting, or maintaining in a static position the actuators  101 ,  102 ,  103 ,  104  relative to one another. 
     In the table of exercise planes  508 , various positions of the exercise machine  600  relative to the horizontal plane are shown. For example, to change the plane of the exercise machine  600  from the default position indicated by the row beginning with the number  0 , to a new plane wherein the front left corner is lifted up relative to the back right corner of the machine, the actuators  101 ,  102 ,  103 ,  104  would be positioned as indicated in the row beginning with the number  3 . To achieve this position, actuator  101  would remain at the default position of Level  1 , actuators  102 ,  103 , would be extended until the ends distal to the base support structure  100  were positioned at Level  2 , and actuator  104  would be extended until the end distal to the base support structure  100  was positioned at Level  3 . Those skilled in the art will appreciate that all actuators  101 ,  102 ,  103 ,  104  may move simultaneously so as not to induce unwanted torsion, compression or tensile stresses on the exercise machine  600  structure. 
     For efficiency, every possible relative position of the four actuators  101 ,  102 ,  103 ,  104  are not described, for doing so would be burdensome, however, those skilled in the art, while following the positions of the four actuators  101 ,  102 ,  103 ,  104  to achieve the seven illustrative positions described in the table of exercise planes  508 , will appreciate the substantially large number of exercise planes possible with the systems and methods described herein. 
     Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although methods and materials similar to or equivalent to those described herein can be used in the practice or testing of the exercise machine, suitable methods and materials are described above. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety to the extent allowed by applicable law and regulations. The exercise machine may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiment be considered in all respects as illustrative and not restrictive. Any headings utilized within the description are for convenience only and have no legal or limiting effect.