Patent Publication Number: US-11383128-B2

Title: Wobble board

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims priority to and the benefit of U.S. Provisional Patent Application No. 62/657,982 filed on Apr. 16, 2018. The disclosures of the above applications are incorporated herein by reference. 
    
    
     FIELD 
     The present disclosure relates to balance boards and in particular to wobble boards. 
     BACKGROUND 
     The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. 
     Balance boards are used for recreation, balance training, athletic training, physiotherapy, rehabilitation and other kinds of personal development. Balance boards can also be used by a user working at a stand-up desk. One type of balance board is a wobble board. 
     Wobble boards pivot in all directions: forward-backward, left-right, and anywhere in between, i.e. 360 degrees. Standing on a wobble board exercises muscles that are not exercised by standing on a balance board that tilts in only two (opposite) directions. 
     The basic exercise of using a wobble board is standing on the wobble board with both feet and tilting it in any direction without letting the board tilt so far that its edges touch the ground. 
     Various wobble boards have been considered. U.S. Pat. No. 9,457,226 to Heath discloses a work platform that has a top member with a surface sized to receive a user&#39;s feet thereon while standing and a bottom member coupled to the top member. The bottom member has a width and length generally equal to the width and length of the top member. The bottom member has a curved surface generally at the longitudinal center of the work platform defined at least partially by a radius of curvature of between about 100 mm and about 850 mm. The curved surface induces instability under a user standing on the top member to thereby facilitate active muscle engagement in the user&#39;s legs while standing on the work platform. 
     U.S. Patent Application Publication No. 2010/0087301 to Juncker discloses a balancing device comprising a board member and a pivoting member comprising a contact face for abutting a surface, wherein said pivoting member comprises integrated contact face adjusting means for changing the geometrical shape of said contact face. 
     Although wobble boards have been considered, improvements are desired. It is therefore an object at least to provide a novel wobble board. 
     SUMMARY 
     It should be appreciated that this Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to be used to limit the scope of the claimed subject matter. 
     Accordingly, in one aspect there is provided a wobble board comprising a platform, a base having a generally flat bottom surface, and at least one compressible member positioned intermediate the platform and the base such that the platform is pivotable with respect to the base. 
     In one or more forms, the at least one compressible member compresses in response to an axial force being applied thereto. 
     In one or more forms, the wobble board comprises an adjustment mechanism configured to adjust a level of compression of the at least one compressible member. 
     In one or more forms, the axial force is at least partially from the adjustment mechanism. 
     In one or more forms, the adjustment mechanism comprises a threaded member connecting the platform to the base. 
     In one or more forms, rotation of the platform relative to the base via the threaded member adjusts the level of compression of the at least one compressible member. 
     In one or more forms, the wobble board is adjustable and useable in a single mode. 
     In one or more forms, the wobble board comprises a locking mechanism configured to set the wobble board in use mode or adjustment mode. 
     In one or more forms, in a first position, the locking mechanism sets the wobble board to use mode, and in a second position, the locking mechanism sets the wobble board to adjustment mode. 
     In one or more forms, the locking mechanism is rotatable between the first and second positions. 
     In one or more forms, the locking mechanism is positioned on a top surface of the platform. 
     In one or more forms, the locking member comprises an interlocking plate positioned on the top surface of the platform and comprising at least one inclined groove, and a disc comprising a plurality of teeth positioned within an opening of the platform adjacent the interlocking plate, the disc having at least one locking member projecting from a surface thereof. 
     In one or more forms, in the first position, the locking member is positioned within the inclined groove at a lowest point thereof, and in the second position the locking member is positioned within the inclined groove at a highest position thereof. 
     In one or more forms, the greater the level of compression of the at least one compressible member the less range of pivot the platform has relative to the base. 
     In one or more forms, the axial force is at least partially from a force being applied to a top surface of the platform. 
     In one or more forms, the force applied to the top surface of the platform is from a user standing on the platform. 
     In one or more forms, the base is positioned on a support surface, the support defining a pivot limit of the platform. 
     In one or more forms, at least a portion of the platform is in contact with the support surface when at the pivot limit. 
     In one or more forms, the at least one compressible member is made of one of an elastic material, a rubber material and a foam material. 
     In one or more forms, the at least one compressible member has a rounded top surface. 
     In one or more forms, the at least one compressible member compresses axially. 
     In one or more forms, the at least one compressible member expands radially when compressed axially. 
     Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure. 
    
    
     
       DRAWINGS 
       In order that the disclosure may be well understood, there will now be described various forms thereof, given by way of example, reference being made to the accompanying drawings, in which: 
         FIG. 1  is a cross-sectional view of a wobble board; 
         FIG. 2  is an exploded view of the wobble board of  FIG. 1 ; 
         FIG. 3  is a top view of a platform forming part of the wobble board of  FIG. 1 ; 
         FIG. 4  is a top view of a base forming part of the wobble board of  FIG. 1 ; 
         FIGS. 5A and 5B  are a bottom view and a cross-sectional view, respectively, of a compressible member forming part of the wobble board of  FIG. 1 ; 
         FIG. 6  is an exploded view identifying elements of an adjustment mechanism forming part of the wobble board of  FIG. 1 ; 
         FIG. 7  is an isometric view of a stem forming part of the adjustment mechanism of  FIG. 6 ; 
         FIG. 8  is an isometric view of a socket forming part of the adjustment mechanism of  FIG. 6 ; 
         FIG. 9  is an isometric view of a chassis forming part of the adjustment mechanism of  FIG. 6 ; 
         FIG. 10  is an exploded view identifying elements of a locking mechanism forming part of the wobble board of  FIG. 1 ; 
         FIG. 11  is an isometric view of a bearing plate forming part of the locking mechanism of  FIG. 10 ; 
         FIG. 12  is an isometric view of an interlock disc forming part of the locking mechanism of  FIG. 10 ; 
         FIG. 13  is a bottom view of an interlock trigger plate forming part of the locking mechanism of  FIG. 10 ; 
         FIG. 14  is an isometric view of a locking member forming part of the locking mechanism of  FIG. 10 ; 
         FIG. 15  is a cross-sectional view of the wobble board of  FIG. 1  in use mode; 
         FIG. 16  is a plan view of the wobble board of  FIG. 1  with a user standing on the platform thereof, the wobble board being balanced; 
         FIG. 17  is another plan view of the wobble board of  FIG. 1  with a user standing on the platform thereof, the wobble board being unbalanced; 
         FIG. 18  is a cross-sectional view of the wobble board of  FIG. 1  in adjustment mode; 
         FIG. 19  is a plan view of a user adjusting the wobble board of  FIG. 1  by hand; 
         FIG. 20  is a plan view of a user adjusting the wobble board of  FIG. 1  by standing on it; 
         FIG. 21  is another cross-sectional view of the wobble board of  FIG. 1  in adjustment mode; 
         FIG. 22  is another cross-sectional view of the wobble board of  FIG. 1  in use mode; 
         FIG. 23  is an isometric view of another form of a wobble board; 
         FIG. 24  is an isometric view of another form of a wobble board; and 
         FIGS. 25A and 25B  are isometric views of another form of a wobble board. 
     
    
    
     The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. 
     DETAILED DESCRIPTION 
     The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features. 
     The foregoing summary, as well as the following detailed description of certain examples will be better understood when read in conjunction with the appended drawings. As used herein, an element or feature introduced in the singular and preceded by the word “a” or “an” should be understood as not necessarily excluding the plural of the elements or features. Further, references to “one example,” “one form,” or “one embodiment” are not intended to be interpreted as excluding the existence of additional examples, forms, or embodiments that also incorporate the described elements or features. Moreover, unless explicitly stated to the contrary, examples, forms, or embodiments “comprising” or “having” or “including” an element or feature or a plurality of elements or features having a particular property may include additional elements or features not having that property. Also, it will be appreciated that the terms “comprises”, “has”, “includes” means “including by not limited to” and the terms “comprising”, “having” and “including” have equivalent meanings. 
     As used herein, the term “and/or” can include any and all combinations of one or more of the associated listed elements or features. 
     It will be understood that when an element or feature is referred to as being “on”, “attached” to, “connected” to, “coupled” with, “contacting”, etc. another element or feature, that element or feature can be directly on, attached to, connected to, coupled with or contacting the other element or feature or intervening elements may also be present. In contrast, when an element or feature is referred to as being, for example, “directly on”, “directly attached” to, “directly connected” to, “directly coupled” with or “directly contacting” another element of feature, there are no intervening elements or features present. 
     It will be understood that spatially relative terms, such as “under”, “below”, “lower”, “over”, “above”, “upper”, “front”, “back” and the like, may be used herein for ease of description to describe the relationship of an element or feature to another element or feature as illustrated in the figures. The spatially relative terms can however, encompass different orientations in use or operation in addition to the orientation depicted in the figures. 
     It will be understood that a wobble board may also be referred to in the art as a work platform, balancing device, platform for work while standing, balance board, etc. 
     Turning to  FIGS. 1 and 2 , a wobble board is shown and is generally identified by reference numeral  50 . In this form, the wobble board comprises a platform  100 , a base  200 , a compressible member  300 , an adjustment mechanism  400  and a locking mechanism  500 . The compressible member  300  is positioned intermediate the platform  100  and the base  200 . The compressible member  300  allows the platform  100  to pivot with respect to the base  200  in all directions, that is, forward, backward, left, right, and anywhere in between, i.e. 360 degrees. As will be appreciated, the limit as to how much the platform  100  can pivot with respect to the base  200  is defined by a support surface on which the wobble board  50  is placed, which is typically a floor. The adjustment mechanism  400  extends from the base  200  to the platform  100  and is used to adjust a level of compression of the compressible member  300 . The locking mechanism  500  is positioned above the compressible member  300  and is used to set the wobble board  50  in use mode or adjustment mode. Put another way, the locking mechanism  500  enables the adjustment mechanism  400  to adjust the level of compression of the compressible member  300 , as will be described in more detail below. 
     As shown in  FIG. 3 , in this form the platform  100  is generally annular shaped and has a circular opening  105  defined therein. The platform  100  has a radius r p  defined from a center thereof. The opening  105  is located at the center of the platform  100 . In this form, the platform  100  is made of wood. As will be appreciated, in other forms the platform  100  may be made of any rigid material such as for example metal, plastic or laminate. 
     As shown in  FIG. 4 , in this form, the base  200  is generally annular shaped and has a circular opening  205  defined therein. The base  200  has a radius r b  defined from a center thereof. The radius r b  of the base  200  is less than the radius r p  of the platform  100 . The opening  205  is located at the center of the base  200 . In this form, the base  200  is made of metal. As will be appreciated, in other forms the base  200  may be made of any rigid material such as for example wood, plastic or laminate. 
     As shown in  FIGS. 5A and 5B , in this form the compressible member  300  is generally frustoconical shaped and has an opening  305  defined therein. The compressible member  300  has a rounded top surface  310 . The opening  305  extends from the top surface  310  to a bottom surface  315 . The bottom surface  315  has a radius r c.bottom  defined from a center thereof. The top surface  310  has a radius (not shown) less than the radius r c.bottom . The bottom surface  315  has a diameter d c.bottom  that is greater than a diameter of the circular opening  205  of the base  200 . The diameter d c.bottom  is less than a diameter of the platform  100  and the base  200 . In this form, the compressible member  300  is made of an elastic material such as for example rubber or elastomer. As such, the compressible member  300  expands radially in response to an axial force applied thereto. The compressible member  300  is positioned such that the bottom surface  315  is in contact with a top surface of the base  200  and the opening  305  of the compressible member  300  is aligned with the opening  205  of the base  200 . The compressible member  300  is secured intermediate the platform  100  and the base  200  using components of the adjustment mechanism  400  and the locking mechanism  500 , as will be described. 
     The adjustment mechanism  400  is shown in  FIGS. 6 to 9 . In this form, the adjustment mechanism  400  comprises a stem  405 , a socket  410 , a dowel pin  415 , a washer  420  and a chassis  425 . 
     As best shown in  FIG. 7 , the stem  405  comprises a head  430  and a threaded shank  435  extending therefrom. An opening  440  extends through the head  430 . The opening  440  is dimensioned to receive the dowel pin  415 . 
     As shown in  FIG. 8 , the socket  410  comprises body  445  dimensioned to fit within the opening  205  of the base  200 . The body  445  is generally inverted bowl-shaped, that is, the body  445  is generally concave-shaped and has an open bottom  446 . A flange  450  extends about a periphery of the open bottom  446  of the body  415 . When the body  445  is positioned in the opening  205  of the base, the flange  450  provides that the body  445  does not pass entirely therethrough. An opening  455  is defined on the concave-shaped portion of the body  445 , opposite the open bottom  446 . Openings  456  are defined on opposite sides of the body  445  adjacent the flange  450 . The openings  456  are dimensioned to receive the dowel pin  415 . 
     As best shown in  FIG. 6 , the washer  420  is generally annular shaped and has a circular opening  460  defined therein. As will be appreciated, in other forms multiple washers may be used. 
     As shown in  FIG. 9 , the chassis  425  comprises a generally annular shaped body  465 . A groove  470  is defined about the circumference of a top surface  471  of the body  465 . The groove  470  is dimensioned to receive and retain ball bearings  475  (shown in  FIG. 6 ) therein. A threaded member  480  extends from the top surface  471  of the body  465  and is dimensioned to receive and mate with the threaded shank  435  of the stem  405 . A nut  485  is positioned around a base of the threaded member  480  and is in contact with the top surface  471  of the body  465 . The nut  485  is secured to the threaded member  480 . 
     During assembly of the wobble board  50 , the head  430  of the stem  405  is positioned within the body  445  of the socket  410 . The dowel pin  415  is inserted through a first one of the openings  456  on the body  445 , through the opening  440  of the head  430 , and through a second one of the openings  456  on the body  445 . As such, the stem  405  is fixed in position axially within the socket  410 . The threaded shank  435  of the stem  405  extends through the opening  455  on the body  445  of the socket  410 . The washer  420  is positioned above the compressible member  300  such that the opening  460  of the washer  420  is aligned with the opening  305  of the compressible member  300 . The chassis  425  is positioned above the washer  420  and the compressible member  300  such that the threaded member  480  is aligned with the opening  460  of the washer  420  and the opening  305  of the compressible member  300 . The socket  410 , together with the stem  405 , is positioned in the opening  205  of the base  200 . In this manner, the threaded shank  435  extends through the opening  305  of the compressible member  300  and the opening  460  of the washer  420  and into the threaded member  480  of the chassis  425 . The ball bearings  475  are positioned within the groove  470  of the chassis  425 . The threaded member  480  of the chassis  425  is connected to components of the locking mechanism  500 , as will be described. 
     The locking mechanism  500  in  FIGS. 10 to 14 . In this form, the locking mechanism  500  comprises a bearing plate  505 , an interlock spring  510 , an interlock disc  515 , an interlock trigger plate  520  and a locking member  525 . 
     As shown in  FIG. 11 , the bearing plate  505  comprises a generally annular body  530  having an opening  535 . The body  530  is dimensioned to extend through the opening  105  of the platform  100 . A groove  540  extends about a periphery of one end of the body  530 , radially outward from the opening  535 , and is configured to receive and retain ball bearings  542  (shown in  FIG. 10 ) therein. Teeth  545  extend radially inward from the opening  535  of the body  530 . A flange  550  extends adjacent an opposite end of the body  530 . Openings  555  are defined in the flange  550 , each of which is dimensioned to receive a fastening member  560  which in this form is a screw. The fastening members  560  connect the bearing plate  505  to a bottom surface of the platform  100 . 
     The interlock spring  510  (shown in  FIG. 10 ) is used to exert a generally upward force on the interlock disc  515 . The generally upward force encourages contact between the interlock disc  515  and the interlock plate  520  and helps to provide that teeth of the interlock disc  515  remain engaged during adjustment mode, as will be described in more detail below. 
     As shown in  FIG. 12 , the interlock disc  515  comprises a generally annular body  565  having a hexagonal shaped opening  570  defined therein. The hexagonal shaped opening  570  is dimensioned to receive and engage with the nut  485  of the of the chassis  425 . Teeth  575  extend radially outward from the body  565  and are dimensioned to mate with the teeth  545  of the bearing plate  505 . A number of projections  580 , which in this form is three (3) projections  580 , are positioned on a top surface  585  of the body  565  at spaced apart locations from one another. 
     In this form, each projection  580  is positioned on the top surface  585  of the body  565  inset from an outer edge  586  thereof. Each projection  580  is in the shape of a curved-ramp and comprises a first upper surface  581  and a second upper surface  582 . The first upper surface  581  is generally flush with the top surface  585  of the body  565 . The second upper surface  582  extends a distance above the top surface  585 . The curve of the curved-ramp is generally equal to that of the outer edge  586  of the body  565 . An opening  583  is defined on the projection  580  adjacent the second upper surface  582 . A tab  584  extends up from the second upper surface  582  over top of the opening  532 . 
     A bottom view of the interlock trigger plate  520  is shown in  FIG. 13 . As can be seen, the interlock trigger plate  520  comprises a generally annular body  590  having an opening  592 . A groove  595  extends about a periphery of a bottom surface  593  of the body  590 . The groove  595  is dimensioned to receive and retain ball bearings  542  (shown in  FIG. 10 ). A number of inclined grooves  600 , which in this form is three (3) inclined grooves  600 , are defined on the bottom surface  593  of the body  590  at spaced apart locations from one another. The location and number of inclined grooves  600  corresponds to that of the location and number of projections  580  that extend from the body  565  of the interlock disc  515 . Further, each inclined groove  600  is dimensioned and shaped to correspond to or complement one of the projections  580  of the interlock disc  515 . 
     In this form, each inclined groove  600  has a first end  601  that is generally flush with the bottom surface  593  of the body  590  and a second end  602  that is set in the body  590 . A depth of each groove  600  gradually increases from the first end  601  to the second end  602 . Openings  605  are defined on the body  590 , each of which is dimensioned to receive one of fastening members  610  (shown in  FIG. 10 ) which in this form is a screw. 
     As shown in  FIG. 14 , the locking member  525  comprises a dome-shaped body  615 . A locking tab  620  extends from a top surface of the locking member  525 . Openings  625  extend through the body  615 , each of which is dimensioned to receive one of the fastening members  610  (shown in  FIG. 10 ). The fastening members  610  are used to connect the locking member  525  to the interlock trigger plate  520 . A locknut  630  and retaining disc  635  (shown in  FIG. 10 ) are also used to connect the locking member  525  to the interlock trigger plate  520 . 
     During assembly of the wobble board  50 , the bearing plate  505  is inserted into the opening  105  of the platform  100 . The fastening members  560  are inserted through openings  555  and are screwed into the bottom surface of the platform  100 . The platform  100  along with the bearing plate  505  are positioned on top of the chassis  425  such that the threaded member  480  of the chassis  425  extends through the opening  535  of the bearing plate. A bottom surface of the bearing plate  505  is in contact with the ball bearings  475 . The interlock spring  510  is positioned such that it is in contact with top surface  471  of the chassis  425  and such that it encircles the nut  485  and threaded member  480  of the chassis  425 . The interlock disc  515  is inserted into the opening  535  of the bearing plate  505 . The hexagonal shaped opening  570  engages with the nut  485  of the chassis  425 . The projections  580  of the interlock disc  515  extend generally upward. As the interlock disc  515  compresses the interlock spring  510 , the interlock spring  510  exerts a generally upward force on the interlock disc  515 . Ball bearings  542  are positioned within the groove  540  of the bearing plate  505 . 
     In this form, the wobble board  50  is operable in two modes: use mode and adjustment mode. As will be described, during use mode a user stands on the top surface of the platform and tries to maintain the wobble board  50  in a balanced position. During adjustment mode, a level of compression of the compressible member is adjusted to increase or decrease the difficulty of use of the wobble board  50  based on the user&#39;s preference. 
     A cross-sectional view of the wobble board  50  in use mode is shown in  FIG. 15 . As can be seen, the interlock disc  515  is positioned such that the tab  584  of each projection  580  is positioned in the first end  601  of a corresponding inclined groove  600 . In this position, the teeth  575  of the interlock disc  515  are not engaged with the teeth  545  of the bearing plate  505 . In the example shown, the level of compression of the compressible member  300  is at a minimum and as such the wobble board  50  is at a least stable setting. 
     During operation in the use mode, a user stands on the top surface of the platform  100  as shown in  FIG. 16 . The weight of the user causes an axial force to be applied to the compressible member  300  and in response the compressible member  300  compresses. As the user&#39;s weight shifts on top of the wobble board  50 , the platform  100  pivots with respect to the base  200 . As mentioned previously, the platform  100  is able to pivot with respect to the base  200  in all directions, forward, backward, left, right, and anywhere in between, i.e. 360 degrees. In this form, the limit as to how much the platform  100  can pivot with respect to the base  200  is defined by a support surface on which the wobble board  50  is placed on. Put another way, the platform  100  can only pivot with respect to the base  200  until a portion of the platform  100  contacts the support surface, thereby inhibiting further pivot. An example of this is shown in  FIG. 17 . As will be appreciated, since the compressible member  300  is made of an elastic material, the threaded member  480  is able to pivot by slightly deforming the compressible member  300  in the direction of pivot. In use mode, the platform  100  is also able to spin/rotate with respect to the base  200 . 
     To transition operation the wobble board  50  from use mode to adjustment mode, the locking tab  620  of the locking member  525  is rotated in a direction, which in this form is clock-wise. As the locking tab  620  is rotated, each projection  580  travels up the respective inclined groove  600  until the tab  584  is positioned in the second end  602  of the corresponding inclined groove  600 . The interlock spring  510  further helps each projection  580  travel up the respective inclined groove  600 . 
     Once the tabs  584  of each projection  580  are positioned in the second end  602  of the corresponding inclined groove, the wobble board  50  is in adjustment mode. A cross-sectional view of the wobble board  50  in adjustment mode is shown in  FIG. 18 . As can be seen, the interlock disc  515  is positioned such that the tab  584  of each projection  580  is positioned in the second end  602  of the corresponding inclined groove  600 . In this position, the teeth  575  of the interlock disc  515  are engaged with the teeth  545  of the bearing plate  505 . 
     As mentioned previously, during adjustment mode the user can adjust the level of compression of the compressible member  300  and thus can adjust the difficultly in balancing the wobble board  50 . In adjustment mode, the platform  100  can be rotated by the user to adjust the level of compression of the compressible member  300 . As the platform  100  is rotated, the threaded member  480  of the chassis  425  rotates with respect to the threaded shank  435 . As such, the platform  100  is raised or lowered with respect to the base  200 , based on a direction of rotation. As the platform  100  is raised or lowered, the level of compression of the compressible member  300  is adjusted. As shown in  FIG. 19 , the platform  100  may be rotated by hand. As shown in  FIG. 20 , the platform  100  may be rotated while the user is standing thereon. 
     As shown in  FIG. 21 , the platform  100  has been lowered and thus is closer to the base  200  (compared to the example shown in  FIG. 18 ). As such, the level of compression of the compressible member  300  is greater and the wobble board  50  is more stable (compared to the example shown in  FIG. 18 ). The wobble board  50  is then set back to use mode by rotating the locking tab  620 , as shown in  FIG. 22 . 
     As will be appreciated, the wobble board  50  may be used for recreation, balance training, athletic training, physiotherapy, rehabilitation and other kinds of personal development. The wobble board  50  can also be used by a user working at a stand-up desk. As the user increases their balance/strength, the wobble board  50  can be adjusted to increase the difficulty of use. In the event of an injury or due to aging, the wobble board  50  can be adjusted to decrease the difficulty of use. 
     Turning now to  FIG. 23 , another form of a wobble board is shown and is generally identified by reference numeral  750 . The wobble board  750  is generally identical to that of wobble board  50 , with the following exceptions. In this form, the wobble board  750  comprises a number of sensors  800  and  810 . Sensor  800  is configured to monitor a degree of pivot of the platform  100 . Sensor  810  is configured to monitor the level of compression of the compressible member  300  and to monitor a force applied to the compressible member  300  which can be used to calculate a weight (or mass) of the user. As will be appreciated, other sensors may be employed to monitor additional parameters of the wobble board and may be placed at various locations thereon. For examples, strain gauges, proximity sensors, accelerometers, gyroscopes and magnetometers may be used. The sensors may be wire or wirelessly coupled to a mobile device, a gaming device and/or a computer and may communicate sensor data thereto for processing. For example, the wobble board may be connected to a gaming device. The sensors may communicate data about manipulation of the wobble board to the gaming device which can be processed or interpreted for gameplay. As another example, the wobble board may wirelessly connect to a mobile device. The sensors may communicate data about manipulation of the wobble board to the mobile device which can be processed or interpreted to assess health or fitness statistics of the user. 
     Turning now to  FIG. 24 , another form of a wobble board is shown and is generally identified by reference numeral  850 . The wobble board  850  is generally identical to that of wobble board  50 , with the following exceptions. In this form, the wobble board  850  does not have a locking mechanism. Specifically, the wobble board  850  does not have an interlock spring, an interlock disc, an interlock trigger plate or a locking member. Further, the bearing plate used by wobble board  50  is replaced with a bearing plate  860  which does not require teeth. In this form, the bearing plate  860  is attached to the threaded member  480 . A machine screw  880  is threadably connected to interior threadings of the threaded shank  435 . A washer  885  is positioned underneath a head of the machine screw  880 . The machine screw  880  and washer  885  are used to provide that the threaded member  480  does not come off the threaded shank  435  when rotated. 
     Rather than a locking member, the wobble board  850  comprises a cap  870  dimensioned to cover the circular opening  105  of the platform  100 . 
     In this form, since the wobble board  850  does not require a locking mechanism, the wobble board  850  operates in a single mode which is both an adjustment mode and a use mode. During use, a user stands on the top surface of the platform and tries to maintain the wobble board  850  in a balanced position. In the event the user would like to increase or decrease the difficulty of use of the wobble board  850 , the user can adjust the level of compression of the compressible member  300  and thus can adjust the difficulty in balancing the wobble board  850 . Specifically, the platform  100  can be rotated by the user to adjust the level of compression of the compressible member  300 . As the platform  100  is rotated, the threaded member  480  rotates with respect to the threaded shank  435 . As the platform  100  is raised or lowered, the level of compression of the compressible member  300  is adjusted. The machine screw  880  and washer  885  provide that the platform  100  is not rotated so far that it disconnects from the base  200 . Similar to wobble board  50 , the wobble board  850  may be adjusted by rotating the platform  100  by hand or while the user is standing thereon. 
     Turning now to  FIGS. 25A and 25B , another form of a wobble board is shown and is generally identified by reference numeral  950 . Wobble board  950  is generally identical to that of wobble board  850  with the following exception. In this form, the cap  970  is removable and thereby provides access to the various components of the wobble board. The cap  970  may be held in place via friction (see  FIG. 25A ) and may be readily be removed by the user (see  FIG. 25B ). In another form, the cap  970  may be threadably connected to the platform and may be removed by rotating it in a direction. In another form, the cap  970  may be connected to the platform using a bayonet mount. By providing access to the various components of the wobble board  950 , additional components such as for example sensors, etc. may be added to the wobble board  950  as desired by the user. 
     Although in forms the limit as to how much the platform can pivot with respect to the base is defined by a support surface on which the wobble board is placed on, in another form the limit as to how much the platform can pivot with respect to the base may be defined by a feature on the base. In this form, the feature is connected to the base and in positioned such that it interferes with movement of the platform as it pivots with respect to the base. Put another way, the platform  100  can only pivot with respect to the base  200  until a portion of the platform  100  contacts the feature on the base, thereby inhibiting further pivot. 
     Although in forms the platform is described as being generally annular shaped, those skilled in the art will appreciate that alternatives are available. For example, in another form the platform may be shaped like a surfboard or a snowboard and thus can be used for athletic training purposes. 
     In another form of a wobble board, a layer of high friction or gripping material may be placed on the platform for safety purposes to reduce the likelihood of a user slipping. The platform may comprise printed matter such as instructions or arrows to guide the user on how to transition between use mode and adjustment mode. In another form, a layer of compressible material such as for example rubber or foam may be placed atop the platform for comfort. In another form, a layer of textured material such as for example corrugated rubber or foam may be placed atop the platform. In another form, the wobble board may be positioned such that the platform is flush with a surrounding foam mat. 
     In another form of a wobble board, the base may include one or more adjustable feet or screws to provide that the wobble board lays flat on an otherwise uneven support surface. 
     In another form of a wobble board, the compressible member may be replaceable. In this form, the compressible member may be replaced with a compressible member having a different range of compression or elasticity. This will further allow the user to increase or decrease the difficulty of the wobble board. 
     In another form, more than one compressible member may be used. 
     Although in forms above the compressible member is described as being generally frustoconical shaped, those skilled in the art would appreciate that the compressible member may be of another shape such as for example cylindrical shaped, annular shaped, etc. 
     Although in forms above the compressible member is described as being made of a resilient material such as rubber or elastomer, those skilled in the art would appreciate that the compressible member may be made of other materials such as for example foam. In another form, the compressible member may be made of an expandable material filled with fluid. In another form, the compressible member may be made of metal having a number of spring-like members. In another form, the compressible member may be a large coil spring or a disc spring. In another form, the compressible member may be one or more discrete air springs. 
     Although in forms, the compressible member is described as expanding radially in response to an axial force applied thereto, those skilled in the art will appreciate that alternatives are available. For example, in another form the compressible member may compress axially. In another form, the compressible member may compress axially and expand radially. 
     In another form of a wobble board, the locking mechanism may comprise a button used to switch between use and adjustment modes. 
     Although in forms above the fasteners are described as being in the form of a screw, those skilled in the art will appreciate that any type of fastener may be used. 
     Although in forms above the platform and base are described as being generally annular shaped, those skilled in the art will appreciate that the platform and base may be other shapes such as for example square shaped, rectangular shaped, octagonal shaped, etc. 
     Although in forms the wobble board is described as having an interlock spring used to exert a generally upward force on the interlock disc, those skilled in the art will appreciate that alternatives are available. For example, in another form, the interlock spring may be replaced with a foam washer. 
     Although in forms the interlock disc is described as comprising projections is in the shape of a curved-ramp and the interlock trigger plate is described as comprising inclined grooves, those skilled in the art would appreciate that alternatives are available. For example, in another form, the projections may be small nubs extending from the top surface of the interlock disc and configured to travel along the inclined grooves of the interlock trigger plate. 
     Although in forms ball bearings are used, those skilled in the art will appreciate that alternatives are available such as for example low friction washers. 
     Other aspects of the present disclosure are exemplified in the following clauses: 
     A1. A wobble board comprising:
         a platform;   a base having a generally flat bottom surface; and   at least one compressible member positioned intermediate the platform and the base such that the platform is pivotable with respect to the base.       

     A2.1 The wobble board of clause A1 wherein the at least one compressible member compresses in response to an axial force being applied thereto. 
     A2.2. The wobble board of clause A2.1, further comprising an adjustment mechanism configured to adjust a level of compression of the at least one compressible member. 
     A3. The wobble board of clause A2.2, wherein the axial force is at least partially from the adjustment mechanism. 
     A4. The wobble board of clause A2.2 wherein the adjustment mechanism comprises a threaded member connecting the platform to the base. 
     A5. The wobble board of clause A4 wherein rotation of the platform relative to the base via the threaded member adjusts the level of compression of the at least one compressible member. 
     A6. The wobble board of clause A5 wherein the wobble board is operable in a single mode. 
     A7. The wobble board of clause A5 further comprising a locking mechanism configured to set the wobble board in use mode or adjustment mode. 
     A8. The wobble board of clause A7 wherein in a first position, the locking mechanism sets the wobble board to use mode, and in a second position, the locking mechanism sets the wobble board to adjustment mode. 
     A9. The wobble board of clause A8 wherein the locking mechanism is rotatable between the first and second positions. 
     A10. The wobble board of clause A9 wherein the locking mechanism is positioned on a top surface of the platform. 
     A11. The wobble board of clause A9 wherein the locking mechanism comprises:
         an interlocking plate positioned on the top surface of the platform and comprising at least one inclined groove; and   a disc comprising a plurality of teeth positioned within an opening of the platform adjacent the interlocking plate, the disc having at least one locking member projecting from a surface thereof.       

     A12. The wobble board of clause A11, wherein in the first position, the locking member is positioned within the inclined groove at a lowest point thereof, and in the second position the locking member is positioned within the inclined groove at a highest position thereof. 
     A13. The wobble board of clause A2.2 wherein the greater the level of compression of the at least one compressible member the less range of pivot the platform has relative to the base. 
     A14. The wobble board of clause A1, wherein the axial force is at least partially from a force being applied to a top surface of the platform. 
     A15. The wobble board of clause A14, wherein the force applied to the top surface of the platform is from a user standing on the platform. 
     A16. The wobble board of clause A1, wherein the base is positioned on a support surface, the support defining a pivot limit of the platform. 
     A17. The wobble board of clause A16, wherein at least a portion of the platform is in contact with the support surface when at the pivot limit. 
     A18. The wobble board of clause A1 wherein the at least one compressible member is made of one of an elastic material, a rubber material and a foam material. 
     A19. The wobble board of clause A1 wherein the at least one compressible member has a rounded top surface. 
     A20. The wobble board of clause A1 wherein the at least one compressible member compresses axially. 
     A21. The wobble board of clause A1 wherein the at least one compressible member expands radially when compressed axially. 
     B1. A method of adjusting a wobble board comprising:
         providing a platform, a base, at least one compressible member positioned intermediate the platform and the base, and an adjustment mechanism comprising a threaded member connecting the platform to the base;   rotating the platform relative to the base such that the platform is raised or lowered with respect to the base via threaded member thereby adjusting a level of compression of the compressible member.       

     B2. The method of clause B1 wherein rotating the platform relative to the base in a first direction raises the platform with respect to the base and in a second direction lowers the platform with respect to the base. 
     B3. The method of clause B1 wherein rotating the platform relative to the base such that the platform is lowered with respect to the base decreases a difficulty of use of the wobble board. 
     B4. The method of clause B1 wherein rotating the platform relative to the base such that the platform is raised with respect to the base increases a difficulty of use of the wobble board. 
     C1. A wobble board comprising:
         a platform;   a base having a generally flat bottom surface; and   at least one compressible member positioned intermediate the platform and the base such that the platform is pivotable with respect to the base, the at least one compressible member configured to compress in response to an axial force being applied thereto;   an adjustment mechanism comprising at least one threaded member connecting the platform to the base such that the platform is rotatable with respect to the base, wherein rotation of the platform in a first direction raises the platform with respect to the base and rotation of the platform in a second direction lowers the platform with respect to the base;   wherein a level of compression of the at least one compressible member increases when the platform is lowered with respect to the base thereby decreasing a difficulty of use of the wobble board and decreases when the platform is raised with respect to the base thereby increasing a difficulty of use of the wobble board.       

     C2. The wobble board of clause C1 wherein the at least one threaded member extends through an opening in the compressible member. 
     C3. The wobble board of clause C1 wherein the at least one compressible member is made of a rubber material. 
     C4. The wobble board of clause C1 further comprising at least one sensor obtaining sensor data associated with at least one of a level of compression of the compressible member and movement of the wobble board. 
     C5. The wobble board of clause C1 wherein the at least one compressible member is made of one of an elastic material, a rubber material and a foam material. 
     C6. The wobble board of clause C1 wherein the at least one compressible member has a rounded top surface. 
     C7. The wobble board of clause C1 wherein the at least one compressible member compresses axially. 
     C8. The wobble board of clause C1 wherein the at least one compressible member expands radially when compressed axially. 
     Although variations have been described above with reference to the accompanying drawings, those of skill in the art will appreciate that variations and modifications may be made without departing from the scope thereof as defined by the appended claims. 
     Unless otherwise expressly indicated herein, all numerical values indicating mechanical/thermal properties, compositional percentages, dimensions and/or tolerances, or other characteristics are to be understood as modified by the word “about” or “approximately” in describing the scope of the present disclosure. This modification is desired for various reasons including industrial practice, manufacturing technology, and testing capability. 
     As used herein, the phrase at least one of A, B, and C should be construed to mean a logical (A OR B OR C), using a non-exclusive logical OR, and should not be construed to mean “at least one of A, at least one of B, and at least one of C.” 
     The description of the disclosure is merely exemplary in nature and, thus, variations that do not depart from the substance of the disclosure are intended to be within the scope of the disclosure. Such variations are not to be regarded as a departure from the spirit and scope of the disclosure.