Abstract:
An exercise device and methods for using the exercise device. The exercise device is a spherical structure having a rigid surface and an opening therein for the user&#39;s hand to grasp a handle affixed in the center of the spherical structure. A series of exercises may be performed with the exercise device, including push-ups, rows and swings.

Description:
TECHNICAL FIELD 
       [0001]    This disclosure relates generally to the field of exercise, and more particularly, to an exercise device and methods for its use. 
       BACKGROUND 
       [0002]    Exercise continues to be an important part of an individual&#39;s health and fitness regimen. Further, the advent of new sports, like mixed martial arts, as well as a better understanding of physiology and how the body responds to stimuli, has led to new ways of training the human body with exercise. To that end, a multitude of exercise devices are commercially available that are alleged to provide various fitness benefits for the user, none of which are truly simple and multifunctional. 
         [0003]    Existing rotating push-up bars typically rotate as the user extends their arms in a push-up position, but these bars are generally fixed in a system that only allows the bar to turn, and does not provide instability for proprioception. A kettlebell is a simple cast-iron ball having a handle that is frequently used for ballistic and swinging movements. However, kettlebells are limited in their functionality because the handle extends from the top of the ball. This means that the weight is not distributed evenly about the hand, but away from the hand, and this may cause some unwieldy flopping motions including banging it into the user when trying to use a kettlebell. Standard dumbbells do not move, rotate or engage proprioception if a user attempts to do upper body push exercises, and thus are also limited in effect. 
         [0004]    It would be desirable to have an apparatus that allows the user to perform isolated as well as compound exercises in a workout program using a standard set of widely accepted functional movements. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0005]      FIG. 1A  is a perspective view of an exercise ball. 
           [0006]      FIG. 1B  is a plan view of the exercise ball of  FIG. 1A  taken across the section  1 B- 1 B. 
           [0007]      FIGS. 2A-2D  illustrate a first series of exercises using the exercise ball of  FIG. 1 . 
           [0008]      FIGS. 3A-3E  illustrate a second series of exercises using the exercise ball of  FIG. 1 . 
           [0009]      FIGS. 4A-4E  illustrate a third series of exercises using the exercise ball of  FIG. 1 . 
           [0010]      FIGS. 5A-5D  illustrate a fourth series of exercises using the exercise ball of  FIG. 1 . 
           [0011]      FIGS. 6A-6E  illustrate a fifth series of exercises using the exercise ball of  FIG. 1 . 
       
    
    
     DETAILED DESCRIPTION 
       [0012]    Referring now to  FIGS. 1A and 1B , an exercise ball  10  is illustrated. The exercise ball  10  is a heavy, partially hollow structure  12  having a spherical shape. It may be made in different sizes and weights, for example, ranging from 8 to 20 inches in diameter and/or ranging in weight from 5 pounds to 150 pounds. Smaller balls will be lighter and easier to use in exercises, while incrementally larger balls will also be proportionately heavier. 
         [0013]    A circular opening  20  is formed in the surface of the ball structure  12 , a cavity  22  is formed in the center of the ball structure, and a passageway  24  connects the opening to the cavity. A handle  30  is affixed across the center of the cavity  22  in the center of the ball  12 . The user reaches in through the opening  20  and passageway  24  to grasp the handle  30  in the cavity  22  to hold the ball  10  for use in exercises. 
         [0014]    In one embodiment, the ball structure  12  is hollow and its surface is formed with a solid metal or hard plastic material. Preferably, the surface has an outer covering  13 , although not required. For example, a suitable metal such as cast iron having the desired weight may be melted and formed in a mold to the desired shape, then covered with layer of rubber or plastic. However, anything hard and heavy that can be made into a round ball and hollowed out would work. The outer covering  13  is preferably vulcanized rubber, which is adhered to the metal through thermal treatment, such as exposure to hot air or microwaves. Other covering materials may also be used and may be fastened to the surface of the ball structure  12  with a suitable adhesive like epoxy such that the covering does not shift or gape when the ball is in use. Alternatively, the ball structure  12  may be dipped into a rubber or plastic resin coating material to fully coat all surfaces of the structure. 
         [0015]    In another embodiment, the ball structure  12  could be formed entirely of vulcanized rubber. molded plastic or other suitable combinations of materials. In yet another embodiment, the ball structure  12  may be filled with a fill material, such as resin, sand, water or even concrete. Such a structure should be formed with no seams or holes through which the fill material could leak out. 
         [0016]    The opening  20  and passageway  24  are adequately sized to accommodate the hand, wrist and part of the forearm of the user to reach into the cavity  22  and grab the handle  30 . For example, the opening  20  is preferably circular and should be no more than 4.5 inches in diameter to accommodate most users. However, it is cautioned that the size of the opening should not be made too large as the smaller size helps to limit movement at the top of the opening for push and rotation exercises. Limiting this movement helps prevent damage to the proximal and distal radioulnar joints while effectively engaging the major and tertiary muscle of the torso and arms. 
         [0017]    The passageway  24  and cavity  22  extend slightly further into the ball than its radius since the handle will preferably be at the mid-point and the hand needs room to wrap around the handle. The passageway  24  is preferably narrower at the surface, as shown in  FIG. 2 , expanding as it moves toward the cavity  22 . Of course, it is possible to make different size balls with different size openings for different users, such as small (for youth or small adults), medium (for typical adult), large or extra large. 
         [0018]    The handle  18  is preferably formed as a solid cylinder made entirely of metal, but could also be formed as a hollow metal cylinder, or coated with rubber or plastic, or made entirely from rubber or plastic. In one embodiment, the handle is integrally formed with the ball structure out of a single piece of metal material by melting the metal and forming in a mold. A single integral high strength plastic piece could also be molded. In another embodiment, the handle  18  is formed as a metal cylinder and is attached to the edges of passage  16 , for example, with threaded fasteners, by weldment, or other known attachment techniques. 
         [0019]    As noted above, the handle  18  should preferably be in the approximate center of the spherical shape for best results, but could also be moved slightly off-center for comfort or for more advanced exercise positioning. It is noted, however, that functionality decreases if the handle is too far off-center or above the midline, by placing undue stress on the user&#39;s joints (wrists, shoulders, etc.). 
         [0020]    Once the user has reached into the ball and grasped the handle, there are numerous exercises which may be performed, and several are described below with accompanying figures. All exercises described herein should be performed in reasonable sets of reasonable repetitions consistent with the fitness of the user. 
         [0021]    Exercise 1: 
         [0022]    Step i: With a ball on each hand, place the balls on the ground in front of you and stabilize in a standard push up ready position, as in  FIG. 2A . This is the Start position. 
         [0023]    Step ii: Drop down (like a push-up) until the chest is even with the top of the balls, as shown in  FIG. 2B . 
         [0024]    Step iii: Push up with the right hand while the left hand “rows,” i.e., pulls the ball up to even with the torso, as shown in  FIG. 2C ; return to Start position. 
         [0025]    Step iv: Push up with the left hand while the right hand “rows” as shown in  FIG. 2D ; return to Start position. 
         [0026]    The primary muscles worked in Exercise  1  are the chest, shoulders, back and core. 
         [0027]    Exercise 2: 
         [0028]    Step i: With a ball in each hand, stand with feet set wider than shoulders and balls held up near shoulders, as shown in  FIG. 3A . This is the Start position. 
         [0029]    Step ii: Drop the balls in a small arc between the legs, which forces you to drop down, as shown in  FIG. 3B . Make sure to maintain good squat posture, and hold chest up; 
         [0030]    Step iii: Continuing from step ii, push up with the feet to swing the balls back up in a small arc, pulling with the upper body, and maintaining good posture with chest out and back straight, as shown in  FIG. 3C . 
         [0031]    Step iv: Continuing from step iii, at the top of arc, absorb the weight of the balls by dropping down in a squat with the balls positioned even with the shoulders, as shown in  FIGS. 3D and 3E . 
         [0032]    Step v: From the squat position of  FIG. 3E , push up with the feet to push the balls straight back up all the way over the head, while maintaining good posture with chest out and back straight, until your arms and balls are extended fully over your head, as shown in  FIG. 3F . Return to Start position. 
         [0033]    The primary muscles worked in Exercise  2  are the hamstrings, glutes, quadriceps and shoulders. 
         [0034]    Exercise 3: 
         [0035]    Step i: With a ball in each hand, stand with feet set shoulder width apart and balls held resting down against your sides, as shown in  FIG. 4A . This is the Start position. 
         [0036]    Step ii: Place the balls down on the ground in front of you approximately shoulder width apart, as shown in  FIG. 4B . 
         [0037]    Step iii: In a single movement, pop your legs straight back out to a push-up type position, with the toes curled under and the feet spread apart roughly the same distance as the balls, as shown in  FIG. 4C . 
         [0038]    Step iv: Pop your legs back to the position of step ii and then jump into the air, keeping the balls at your side, as shown in  FIG. 4D . 
         [0039]    Step v: Land, then curl the balls up in front of your chest, as shown in  FIG. 4E . Return to Start position. 
         [0040]    The primary muscles worked in Exercise  3  are the core, shoulders, quadriceps, calves and biceps. 
         [0041]    Exercise 4: 
         [0042]    Step i: Start by placing the balls on the ground approximately shoulder width apart, with your feet on the ground and together in front of you, with knees bent and hips raised off the ground and positioned slightly in front of the balls. Refer to  FIG. 5A . 
         [0043]    Step ii: Raise the left leg to where the knee is locked and in line with the right thigh, as shown in  FIG. 5B . 
         [0044]    Step iii: While maintaining the left leg in the raised position, drop the hips toward the ground by bending the elbows, as shown in  FIG. 5C , then return to the position of step ii. 
         [0045]    Step iv: Switch legs—raise the right leg to where the knee is locked and in line with the left thigh, and while maintaining the right leg in the raised position, drop the hips toward the ground by bending the elbows, as shown in  FIG. 5D , then return to the position of step ii. 
         [0046]    The primary muscles worked in Exercise  4  are the triceps, core, quadriceps and shoulders. 
         [0047]    Exercise 5: 
         [0048]    Step i: Start by placing the balls on the ground in front of you approximately shoulder width apart, as shown in  FIG. 6A . 
         [0049]    Step ii: In a single movement, pop your legs straight back out while simultaneously dropping the upper body down to a lowered push-up type position, with the toes curled under and the feet spread apart roughly the same distance as the balls, as shown in  FIG. 6B . 
         [0050]    Step iii: In a single explosive movement, push up and also pop your legs back to the position of step i, as shown in  FIG. 6C . 
         [0051]    Step iv: Drop backward, rolling on your back toward the shoulders and head with the balls following, as in  FIG. 6D . 
         [0052]    Step v: Utilizing the momentum of the roll, allow the balls to lightly touch the ground just above the head and your hips to roll up off the ground, as in  FIG. 6E . 
         [0053]    Step vi: Utilizing the momentum to go back the other way, allow the hips to drive back toward the ground and quickly bring the balls forward, as shown in  FIG. 6F , until you are back in the Start position. 
         [0054]    The primary muscles worked in Exercise  5  are the chest, core, abdominals and serratus anterior. 
       CONCLUSION 
       [0055]    There are many other exercises that may be performed using the exercise ball described above. A detailed description of one or more embodiments has been provided above along with accompanying figures that illustrate the described subject matter. It should be understood that the description is not intended to be limiting, merely illustrative.