Abstract: An exerciser includes a handle and a support rotatably secured to a base, two foot pedals are rotatably secured to the support with spindles for allowing the users' feet to be rotated relative to the support and for preventing the users from being hurt or twisted while rotating relative to said base with the support. The support includes two blocks pivotally secured between two pivotal and parallel beams for supporting the foot pedals. A device may couple the the handle to the support for allowing the handle to be rotatably coupled to the support.

Abstract: An exerciser includes a handle and a supporting device rotatably secured to a base, two foot pedals are rotatably secured to the support with spindles for allowing the users' feet to be rotated relative to the supporting device and for preventing the users from being hurt or twisted while rotating relative to said base with the supporting device. A device may couple the the handle to the supporting device for allowing the handle to be rotatably coupled to the supporting device. The handle may include a shank rotatably and foldably secured to a lower segment.

Abstract: An exerciser has a stand, a base and two covers. The stand has a supporting rod, a knob and a stand rod. The knob is detachably attached to the supporting rod. The stand rod is universally connected between the supporting rod and the knob. The base is detachably attached to the bottom of the stand to support the stand. The covers are pivotally connected to supporting rod of the stand. Each cover has a chamber to receive the elements of the stand and the base after the stand and the base are disassembled. Accordingly, the exerciser is detachable and portable so that the portable exerciser can be carried to anywhere conveniently.

Abstract: An exercise balance trainer includes a hard board and a resilient ball body connected to the board. The ball body has a first curved wall with a first rim, a second curved wall with a second rim connected fixedly to the first rim so as to define an air-receiving chamber between the first and second curved walls, and an annular flange connected to the board and a junction of the first and second rims. The first and second rims have the same diameter. The first curved wall has a maximum height that is not greater than one-half of the diameter of the first rim. The second curved wall has a maximum height that is not greater than one-third of the diameter of the second rim.

Abstract: A ball positioning structure on which a ball is placed comprises a lower body including a round disk with a through-hole in the center thereof, an upper body covered on the lower body and having a bore provided in the center thereof which is in alignment with the through-hole; a bearing disposed in the bore of the upper body such that the upper body and the slide device are mutually rotatable, and a frame, on which a ball is placed, disposed on the surface of the upper body. A user may sit on the ball, press the ball, or lean on the ball and make fixed-point rotation to enhance enjoyment of playing.

Abstract: An angle-adjustable exerciser comprises a base, an adjustment disk set and a support plate. The base attaches to a spherical cast piece on top and a plate with large surface at bottom. At the periphery of the spherical cast piece, there is an adjustment disk set composed of the first disk, the second disk and a few screws. At center of the first and second disks, there are holes for the disks to install at the periphery of the cast piece. At the corresponding position, there are several through holes at the first and second disks, so the disks can be connected by at least two positioning screws. The distance between the disks is maintained by positioning screws. Another through hole is for an adjustable screw to tighten or loosen the disks. This is also to adjust the declined angle for the adjustment disk set on the spherical cast piece.

Abstract: An inflatable elastic exercising device includes a deflatable collapsible elastic body and a base seat composed of assembled outer frames and reinforcing boards. The elastic body is formed with a fixing flange. The thickness of the fixing flange plus the thickness of the reinforcing board is just the height of a restricting channel of the outer frame, so that the reinforcing boards and the elastic body can be firmly fixed and enclosed by the outer frames. A user can stably and safely stand on it for doing balance exercise. After the elastic body is deflated and collapsed and the reinforcing boards and the outer frames are disassembled and stacked, it can be stored in a narrow space and conveniently transported.

Abstract: An exerciser has a base, a rocking frame and a back pad. The rocking frame is pivotally attached to the top of the base and adapted for a user rocking the rocking frame relative to the base. The back pad is mounted on the rocking frame and adapted for the user to lay on the back pad. With such an exerciser, the user not only can train the abdominal muscles of user, but also can swing, twist or expand his or her body.

Abstract: A leg exercise machine includes a base and a swivel mechanism by which two footrests are mounted on the base. The swivel mechanism has an upright post mounted on the base, a horizontal shaft fastened pivotally at one end to the upright post, a horizontal support tube rotatably fitted over the horizontal shaft and provided at one end with a connection bar, and a link rod connected at one end with the connection bar of the horizontal support tube by a first universal joint, with the other end of the link rod being connected to the base in conjunction with a second universal joint. The two footrests are supported respectively by a tilted arm on the horizontal support tube such that the two footrests are capable of vertical and horizontal motions at the same time.

Abstract: A balance board comprising a platform (4) to support a user, a ground contacting rocker member (8) having a rounded surface (16) to permit pivoting of the platform about a first axis (10), and an interconnecting member (14) extending between the rocker member and the platform to permit pivoting of the platform about a second axis (11) substantially perpendicular to the first axis and about a third axis (12) substantially perpendicular to the first and second axes. The interconnecting member and the rocker member cooperate to define a central pivot region, for pivoting of the platform about the three axes. Preferably, the balance board includes stop members (30) to adjust the pivoting movement of the platform about at least one of the axes to make balancing of the platform adjustable depending on the skill level of the user. The balance board is used as an exercise device to improve and develop the balancing ability of a user.

Abstract: An exercise footboard structure includes a base, a lower support seat, an upper support seat, and a plank. The lower support seat is adjustably mounted on a cylindrical pillar of the base. The upper support seat is mounted on the lower support seat in conjunction with a plurality of elastic pieces which are fastened between the lower support seat and the upper support seat. The plank is mounted on the upper support seat such that the plank can be caused by an external force to tilt or swivel back and forth.

Abstract: An exerciser has a base and a rocking plate. The rocking plate is rotatably attached to the base with a ball joint. Consequently, a user can swing or twist body, rotate ankles and develop feet muscles when the user steps on the rocking plate to keep balance. The exerciser can exercise the lower part of the body of a user. This exerciser is more versatile than the prior art.

Abstract: The invention (49), an adjustable instability apparatus for exercising, balancing, recreation and physical rehabilitation activities, is described comprising an air spring assembly (48), a bleeder valve with seal assembly (46), a bearing assembly (66) and flanged button head cap screws (38). The air spring assembly (48) consists of a molded rubber resilient inflatable bladder (22) that can be selectively inflated or deflated, and is surrounded by a girdle hoop (80) filled with multiple strands of wire (24) which are molded into the resilient rubber bladder (22). A substantially round, flat and rigid top plate (20) equipped with multiple threaded blind nuts (28) is crimped and sealed to the top portion of the bladder (22). A substantially round, rigid bottom plate (26) with the central portion concaved inward having a threaded open nut (88) with multiple threaded blind nuts (28) is crimped and sealed to the bottom portion of the bladder (22).

Abstract: A balance toy system has a balancing surface supported by half sphere positioned in the center underside of the platform to provide a fulcrum upon which the platform may tilt. A switch positioned around the perimeter of the underside platform may be actuated when the device is tilted in the X-Z axis beyond a threshold angle. The balancing surface may be configured with a raised lip around its perimeter and include a depression in the center of the device to enable a ball placed on the platform to roll in the tilt direction. When the device is aligned in the center-balance position, the ball may roll into the center depression. Visual feedback provided to the user by way of real-time ball movement and may be supplemented by optional counter, buzzer and LEDs.

Abstract: An exercise apparatus comprises an oblong platform and at least one detachable convex instability member projecting from the lower surface of the platform. The platform is of sufficient length for a person to perform whole body exercises, e.g. in a prone, supine or semi-supine position, on the platform. The person exercising on the platform faces the challenge of attempting to maintain the platform in a horizontal orientation as it rocks or wobbles during the exercise, thus improving the balancing skills of the user. The apparatus may be provided in kit form with a plurality of interchangeable detachable convex instability members of different forms, shapes and sizes to provide different balancing challenges of varying degrees of difficulty. The apparatus or kit may also include one or more exercise aids or attachments, e.g. bars and exercise balls mountable on the upper surface of the platform.

Abstract: The present invention is an exercise device for conditioning and rehabilitation of the nerves, muscles, bones, and joints of the body by facilitating or limiting range of motion and biomechanical forces around the horizontal and vertical axes. The device includes a fulcrum connected to a first side of a base. The fulcrum extends outward from the base and provides a point about which the device pivots. Fulcrum includes a recess having a removable attachment. When the attachment is connected, the fulcrum has a rounded shape. A user positioned on the base can pivot about the fulcrum in substantially 360° of motion to fully work their body. When the attachment is removed, rails forming the recess limit the range of motion to a user to between substantially a first orientation and a second orientation. The range of motion with the attachment removed being less than the range of motion with the connected attachment.

Abstract: A yoga balance trainer includes a main frame, a base support, and two upright exercising rod units. The main frame has a first spring unit connected between bottom and top boards. The base support includes a number of interconnecting base tubes connected fixedly to the bottom board of the main frame, a plurality of positioning tubes connected removably, telescopically, and respectively to selected two of the base tubes, and positioning units for positioning the positioning tubes respectively relative to the base tubes. Each rod unit includes a lower rod portion connected to one of the selected two of the positioning tubes, an upper rod portion, and a second spring unit connected between the lower and upper rod portions so that the upper rod portion is twistable relative to the lower rod portion.

Abstract: A method and apparatus for exercising internal and external oblique muscles utilizes lateral forces generated by the feet and maintain the upper body in a fixed position to facilitate exercise of the oblique muscles. The apparatus and method vary the inertial forces applied outside the feet to affect the degree of difficulty of the exercise.

Abstract: A snowboard training apparatus is provided which is designed to be used on any solid surface, such as a living room floor, and simulates the actual use of a snowboard on a ski hill. The training apparatus is made up of a plank-like board that roughly simulates a basic snow board. Additionally, the lower surface of the board is equipped with a pair of laterally mounted rockers that extend downward from this surface. These rockers are configured in a triangular shape and having the point of the triangle facing downward at the center of the rocker. This configuration ensures that when the board is placed on a hard surface it rests on the rockers which enables a user to learn to properly control a snowboard.

Abstract: A tiltable twisting exerciser includes a base and a cover. The base has a top surface and a bottom surface. There are several fixing recesses disposed on the top surface. A rotatable disk is pivotally disposed the bottom surface. This cover is hinged on a first hinge portion of the base. This cover has an outer surface and an inner surface. A supporting portion is hinged on a second hinge portion which is fixed on the inner surface such that it can rotate out to a desired position. So, the user can do the twisting exercise on a sloped surface. The sloped surface is adjustable. And, it can be easily switch to one of the four operation modes.

Abstract: An apparatus for performing exercises to improve balance including an exercise platform on one end of a helical spring supported on a base platform. In a preferred embodiment, a plurality of legs extend perpendicularly from the base platform which function as stops to preventing tilt of the exercise platform from exceeding a maximum tilt. The bottom end of each leg is mounted on a plate lying flush on the base platform that can be oriented so that the leg is positioned at a location corresponding to the required maximum tilt. A vertical rod is supported at a location spaced from the exercise plaform selected by the user depending on his exercise. Various devices such as a punching bag of tethered ball is attached to the vertical rod for incorporation into the users exercise regimen.

Abstract: A proactive machine is used for assessing and improving a user's proprioception. The machine has a tilting platform upon which the user stands, a non-rotating tilting means connected to the platform for tilting the platform along a first axis and along a second axis perpendicular to the first axis, and a control means for controlling the tilting means.

Abstract: A skateboard simulator provides a stable platform for wheeled skateboard-type actions. The simulator has a pair of spaced truck-like elastomeric support means mounted to a deck to simulate the response of a conventional skateboard to user actions. Spaced contact lobe elements provide a frictional contact with the ground while flexing in response to user action to simulate the response of wheeled skateboard. The support means are preferably of a unitary urethane construction with the contact lobe element portions being of a hollow configuration.

Abstract: A balance training apparatus is disclosed for supporting individuals with a reduced ability to maintain balance while standing, comprising means for biasing a user towards an upright position when deviating therefrom in two planes. The apparatus comprises a variable spring system that combines a 2-degrees-of-freedom joint with said biasing means into a single element in a simple and advantageous construction.

Abstract: A twisting exerciser includes a base with a tubular extension and multiple first adjusting holes defined through a periphery of the tubular extension. A cushion has a cylindrical bottom received in the tubular extension and provided with multiple second adjusting holes defined to correspond to the first adjusting holes and multiple legs extending out therefrom. A pin extends into one of the first adjusting holes and one of the second adjusting holes to secure engagement and a relative position between the tubular extension and the cylindrical bottom. A stepping board is securely mounted on and supported by the cushion. The stepping board is able to be twisted and rocked so as to provide an exercising effect to a user.

Abstract: An exercise board for accommodating the foot or feet of a balancing user during exercise movement has an elongated flat platform with opposite, typically upturned ends, similar to a skateboard. The board defines an upper facing side dimensioned to receive the foot or feet of the balancing user and a lower facing side. Resilient rocker-mounting ends are mounted to the lower facing side at either end of the elongated flat platform. Each resilient rocker-mounting end includes a rigid floor contacting rocker section and an elastic column. The floor contacting rocker section has a rounded floor-contacting surface. The elastic column is mounted to the elongated flat platform at the upper end, mounted to the floor contacting rocker at the lower end, and bendable both longitudinally and in torque responsive to shifting weight of a balancing user on the upper facing side of the elongate platform.

Abstract: An exerciser has a base and a rocking plate. The rocking plate is rotatably attached to the base with a ball joint. Consequently, a user can swing or twist body, rotate ankles and develop feet muscles when the user steps on the rocking plate to keep balance. The exerciser can exercise the lower part of the body of a user. This exerciser is more versatile than the prior art.

Abstract: A method and apparatus for exercising internal and external oblique muscles utilizes lateral forces generated by the feet and maintain the upper body in a fixed position to facilitate exercise of the oblique muscles. The apparatus and method vary the inertial forces applied outside the feet to affect the degree of difficulty of the exercise.

Abstract: An exercise apparatus including a base, a platform, and a resilient member located between and attached to both the base and the platform. The resilient member can rotate, twist, and tilt in every angle while also providing a resistance force to all degrees of movement. The platform may be modified by the addition of an elastomeric material over its surface to provide additional traction or padding. The platform may also have notches placed around its perimeter, through which resistance tubing or rope may be placed such that upper body resistance motion may be integrated into the exercise apparatus. Furthermore, support members may be disposed under both the platform and base for additional support and rigidity. The resilient member may have a flange, which in conjunction with an adjustment mechanism, may affect the amount of resiliency of the resilient member. The adjustment mechanism may have a handle, a gear and ratchet assembly, and a plurality of locking mechanisms.

Abstract: A horizontally twisting exercising device includes a base for the user to stand or sit on, a first rotating extension portion and a second rotating extension part. The second rotating extension portion has a pivoting portion and a pair of handles. Because the pivoting portion is pivoted on the second end of the first rotating extension portion, the handles can smoothly rotate. So, by the automatic rotating of handles, it is more comfortable and not easy to occur the exercising injures. The upper body of the user can keep straight during exercising. It is suitable for different kinds of user. It can apply on many leg-related exercising devices. And, the range of its swinging angle is wider.

Abstract: An apparatus for performing exercises to improve balance including an exercise platform on one end of a helical spring supported on a base platform. In a preferred embodiment, a plurality of legs extend perpendicularly from the base platform which function as stops to preventing tilt of the exercise platform from exceeding a maximum tilt. The bottom end of each leg is mounted on a plate lying flush on the base platform that can be oriented so that the leg is positioned at a location corresponding to the required maximum tilt. A vertical rod is supported at a location spaced from the exercise plaform selected by the user depending on his exercise. Various devices such as a punching bag of tethered ball is attached to the vertical rod for incorporation into the users exercise regimen.

Abstract: An inflatable device can be used for physical therapy, conditioning or training. The device has a support platform and a flexible member. The flexible member is attached or affixed to, and has a bowl-shaped distention projecting from one side of, the platform. This flexible member is inflatable to a pressure for supporting a person. The device is inflated in order to support at least some of the weight of a person by compressing the inflatable device at or adjacent to its center. When the person wishes to later change the characteristics of the device, the pressure in the inflatable device can be changed to change its stability.

Abstract: A ski exercising machine has a set of at least two parallel rails joined to cross members at the ends, the cross members providing support on a horizontal support surface, and joined to a central frame structure extending from the horizontal surface near the center to the rails, the rails extending from each cross member at each end upward at an acute angle with the horizontal rising to a maximum height in the center. A wheeled carriage rides on the rails, and there is at least one articulated footpad mounted to the wheeled carriage. A first power band having two ends, anchored at both ends by a clamp to a bottom surface of the frame structure beneath the wheeled carriage, passes over first rollers fixed to the cross members, and is anchored to the wheeled carriage, such that the power band is extended and exerts a restraining force toward the center of the machine as the wheeled carriage translates on the rails to either side of center.

Abstract: Device for stimulating venous return in the lower limbs including a frame (1) intended to rest with a supporting surface against a foundation such as a floor, a bed head, a wall etc. The device is distinguished in that a foot plate (4) is arranged to tilt on frame (1) from an starting position that is angled in relation to the floor and thus frame (1) around an axle (5), that foot plate (4) is provided with a leaf spring (9) acting between a section (7) of the frame and the underside of foot plate (4), that the section (7) has such a form that when foot plate (4) pivots from the said starting position, leaf spring (9), by being progressively tensioned by the interaction of the frame with the section of the spring, increases the resistance against the pivoting of foot plate.

Abstract: A balancing exercise device for an individual, having a flexible hemisphere having a flat circular surface and a hemispherical side surface and being made out of flexible resilient material which will compress when placed under pressure and pair of attachment straps respectively affixed on oppositely disposed sides of the hemispherical side surface and which are connected by connecting members respectively located on each attachment strap so that a body part is held against said flat circular surface when the attachment straps are connected.

Abstract: A parallel ski training or exercise apparatus is described. The ski training device provides the combination of parallel motion, edging, and weight shifting that characterizes downhill parallel skiing. Two foot platforms are mounted on a base, on independent rotation axes centered about the balls of the user's feet. The foot platforms are constrained to rotate together, i.e. their longitudinal axes remain parallel. The foot platforms can tilt from side to side to simulate the edging motion of downhill parallel skiing. Varying amounts of resistance to rotation and to tilting can be obtained by changing the springs or other devices that bias the foot platforms to straight-ahead and level alignment. The base of the parallel ski training device can be tilted to an angle by a support having a circular arc or hemispherical shape. With the front of the base raised, the user's ankles assume the leaning forward attitude that is used in parallel skiing.

Abstract: A recreational balancing apparatus comprises a frame defining a horizontal opening therein, and a balancing board mounted on a joint assembly in a manner which allows the balancing board to tilt in every direction, and be capable of 360° rotation. The apparatus further comprises an upstanding support post, the post being secured to a lower portion of the joint assembly, and a lower portion of the support post passes downwardly through the frame opening. Support legs are secured to the frame, and a collar, having an opening therein, is provided. A first set of high tension springs connects the collar to the frame, the springs each being connected to a periphery of the collar and an inside portion of the frame, so that the collar is supported centrally within the horizontal frame opening, to provide a stable center for the support post to slide through, and achieve limited tiltable movement in a radial axis about a center of rotation positioned in the center of the collar.

Abstract: An exercise scooter supported by a pair of wheels is propelled by the cyclic operation of a pair of stabilized pedals by a standing user. The elongate pedals are connected to a crank and guide for predetermined pedal angles configured to maintain heel contact during the cyclic operation. The feet may be moved during operation along the pedals to change leverage imposed upon the wheels for better startup acceleration or easy cruising.

Abstract: The present invention relates to a stepper with additional functions to strengthen the arms and the breast which includes a stepper and a pull rod both of which are fitted to a base. The stepper has two treads each of which has a front assembly pivotably connected to the base. The pull rod is pivotably connected to upright rods at front end of the base. Moreover, it is coupled with a movable handle at top thereof and a connecting rod at bottom thereof. The other end of the connecting rod is pivotably connected to the front assembly of the stepper. Accordingly, the pull rod, the connecting rod and the front assembly are coupled with one another. A position-limiting bar is inserted through the front end extending from the outer side of the upright rods.

Abstract: A waist exercising device includes a supporting board with a plurality of acupressure projections on the upper side and two rotating board stopping devices at both lower sides, the rotating board stopping devices including each bent operating rod connected and operated by a spring and upholding strips at both sides, a rotating board located in the upper center of the supporting board, the rotating board having a plurality of acupressure projections on the upper side and a plurality of holes at the lower side of the outer circumference, a circular board located in the upper side of the rotating board, the circular board moving upwardly and downwardly on both upholding bars by both supporting implements at both sides, a plurality of tension springs and a plurality of rollers with a plurality of acupressure projections on the outer surface fixed between the upper and lower backing board with a plurality of connecting rods, combination rods and holes in regular spaces, respectively, two combination implements fix

Abstract: This invention is a tilted rotating table designed for exercise and recreation. The table is free to rotate either in the clockwise or counterclockwise direction. The table has a fixed tilt from the horizontal and is mounted on bearings. In the drawing, FIGS. 1, 2, 3, and 4 show a human shape standing on the table and rotating counterclockwise when viewed from above. Each figure in sequence shows the human shape rotated 90 degrees from the previous figure with FIG. 1 rotated 90 degrees from FIG. 4, thus showing the ability for continuous rotation. The table is hollow and has a port for the addition or subtraction of weight, such as sand. The added weight increases the momentum or “flywheel effect” of the table. The result is a table that is easier to stand on, spins longer, and becomes more stable.

Abstract: An exercise device comprising two box-like open-sided platform sections disposed side-by-side in a closed, storage and transporting position or end-to-end in an open exercising position and having two rotary disk assemblies that are mountable in a plurality of fixed exercising positions along the platform sections by means of pins on the lower sides of the disk assemblies and a longitudinal series of mounting holes in each platform section. Elongated elastic resistance bands are connectable between the rotary disks, on hook connectors thereon, and between the disks and the platform sections, in various ways for closed-chain operation, when desired, or removable for open-chain exercises. A carrying handle and latches are provided in the platform sections, and U-shaped connectors are provided to join the platform sections together.

Abstract: Multi-functional practice and training apparatus for use by skateboarders, skaters, bicyclists and the like. According to a preferred embodiment, the system comprises the combination of a board with a fulcrum member that are operative to assume at least three practice modes, namely: 1) a ramp mode whereby the fulcrum is placed at one end of the board and creates an upward slope for use in riding or jumping over objects; 2) a seesaw mode whereby the board is pivotally mounted upon the fulcrum and provides a platform surface upon which the user can rock back and forth while standing or riding thereon; and 3) a rigid rail structure whereby the fulcrum defines a rail for use in “grinding.

Abstract: A balance training apparatus has replaceable and exchangeable inserts tailored to accommodate various uses and to demand balancing skills of the user in dependence on personal attributes of the user. A moving object is disposed within each of the inserts for directed motion by the balancing user. A window, preferentially made from a clear plastic material, provides for visual observation by the user of the moving object traveling through a respective insert path, such that the user can direct the moving object, preferentially a ball, towards a target or along a path. The window is attached to the house in a manner not requiring the use of tools, such that the user can easily remove the window for direct access to and exchange of the insert.

Abstract: An exercise device for developing and improving balance and coordination, as well as facilitating the practice of rotational movement. The device comprises a stationary base member positionable upon a planar surface having a first platform surface formed thereon. The first platform surface is free to rotate about a first axis. Formed upon the first platform surface are second and third platform surfaces, each being rotatably mounted thereupon and free to rotate about dedicated axes. Both these second and third platform surfaces are adapted to receive a one of a pair of feet to enable a user to stand upon the device. In use, the user is subjected to a gyroscopic effect insofar as the user is subjected to the simultaneous rotational movement of the first, second and third platform surfaces. The device may further optionally include handle members extending across the device and a cushion member interposed between the base and the first platform surface to impart a rocking motion.

Abstract: A method for improving balance and coordination associated with the performance of a sport motion. The method comprises the initial step of providing a training apparatus, the latter comprising a stationary base member having first and second platforms rotationally mounted. The first and second are adapted to receive, respectively, a foot of an individual to enable the individual to stand thereon such that each foot can rotate independently about a separate axis. While standing upon the device, an individual may perform a variety of movements, such as a tennis stroke, golf swing, and the like, and, by virtue of imparting rotational movement to the feet, enable an individual to optimally perform proper rotational movements. The training method maybe incorporated into a sports instruction regimen applicable to a wide-variety of sports, including skiing, surfing, and martial arts, as well as many activities, in addition to tennis, golf and baseball.

Abstract: A rotatable pedestal for allowing single riders such as a child to use their body weight to cause a rotatable disc seat to rotate over a sloped surface on a support stand. Springs within the stand cause the seat to rotate in an erratic and jumpy manner while the seat goes from a horizontal position to tilted positions of up to approximately 20 degrees and back to a horizontal positions. The pedestal is small enough and light enough to be portable and strong enough for most children up to the age of approximately 12 years old.

Abstract: An inflatable device can be used for physical therapy, conditioning or training. The device has a support platform and a flexible member. The flexible member is affixed to, and has a bowl-shaped distention projecting from, one side of the platform. This flexible member is inflatable to a pressure for supporting a person. The device is inflated before placing at least some of the weight of a person on the device. When the person wishes to later change the characteristics of the device, the pressure in the inflatable device can be changed to change its stability.

Abstract: A torsion board comprising a platform for supporting a user, a ground contacting member for maintaining the torsion board generally in a fixed position and orientation with respect to a ground surface and a resilient interconnecting member mounted between the ground contacting member and the platform to permit pivoting of the platform about first, second and third orthogonal axes, said first axis being generally coincident with a gravitational axis along which gravitational forces act upon said user.

Abstract: Balancing equipment that provides a selectively dynamic platform for an individual thereon. The weight and movement of the individual causes the platform to tilt in any direction, thereby attempting to throw off the balance of the individual, causing the individual to work on maintaining balance while on the dynamic platform. The dynamic nature of the platform can be adjusted to correspond to the balancing abilities of individuals. An adjustment mechanism increases or reduces the amount the platform is able to tilt, without requiring the raising or lowering of any component of the platform. An exercise mechanism can also be connected to the platform to further modify the dynamic nature of the platform.