Abstract: A balance and exercise apparatus comprising a base member supported on an underlying stratum, pivoting member positioned on a base member, and a body support member positioned on top of the pivot member, the body support member secured to the base member by a combination of a plurality of resilient tension cords and non-resilient cinch strap thus allowing the user to either stand, lie or sit on the body support member and cause the body support member to selectively tilt from a horizontal plane about 360 degrees of orientation.

Abstract: An exercising balance board includes a pedal, and a plurality of balance seats selectively mounted on the bottom of the pedal. Thus, the exercising balance board has an adjustable height by the balance seats and an adjustable curvature by the convex portion of each of the balance seats, so that the exercising balance board is available for users of different statures and requirements, thereby enhancing the versatility of the exercising balance board.

Abstract: The present invention provides a board sport training device and a method of use. In accordance with an embodiment, a board sport training device comprises a base comprising a plurality of separate base portions having at least a front pivot area and a rear pivot area. The front pivot area and the rear pivot area are positioned along a longitudinal axis of the platform and separated by a distance from the platform. The front pivot area and the rear pivot area are also separated by a distance from each other such that the platform is pivotable from side-to-side when the front pivot area and the rear pivot area are in contact with a ground surface and the user steps to various positions between the front pivot area and the rear pivot area. The rear pivot area is inset from a rear end of the platform such that the platform is rotatable about the rear pivot area when the user steps to a position such that only the rear pivot area is in contact with the ground surface.

Abstract: A twister and sit-up combination exerciser has a base, two V-shaped levers each having a front end with a grip and a read end, a supporting frame adjustably attached to the rear ends of the levers, and at least one twister rotatably mounted on the base. The two V-shaped levers are pivotally attached to the base to provide a sit-up auxiliary structure. By combining the twister with the sit-up auxiliary structure, the exerciser has at least two functions. Moreover, the base further has a base twister rotatably attached under the base to make the exerciser have more versatility in use.

Abstract: An exercise device having a body extension mechanism including a press plate mechanism and an articulating seat structure. The press plate mechanism is pivotally connected to a frame forwardly of the articulating seat structure, which is also connected with the frame. The press plate mechanism is operably connected with the articulating seat structure by a transfer link so that when a user actuates the press plate mechanism, the movement of a back support of the articulating seat structure is coordinated with the movement of the press plate mechanism. Resistance for the exercise device is provided by a weight stack that is operably connected with the body extension mechanism through an arrangement of pulleys so that when the user actuates the press plate mechanism a portion of the weight stack is lifted.

Abstract: An exercise device comprising a base and a platform rotatably tiltably connected to the base, wherein the invention includes a first continuous passive motion embodiment and a second continuous active motion embodiment. The continuous passive motion exercise device (e.g. non-motorized) may utilize the nested engagement of a concave surface located in the base and a convex surface extending from the platform to provide a rotatable tiltable connection therebetween. The device may also utilize at least one roller bearing located within the base to assist in permitting the rotatable tiltable motion of the platform relative to the base. The continuous active motion exercise device (e.g. motorized) utilizes a motor housed within the base to drive the rotatably tiltably connected platform.

Abstract: One or more balancing objects are provided having an arcuate roof onto which a user may step and a pair of sidewalls to support the roof. The arcuate roof is shaped such that a portion of a user's foot will contact the balancing object when standing on the roof, thereby challenging the user to maintain balance in a more unsteady state than when standing flat-footed. The sidewalls extend downwardly from lateral side regions of the arcuate roof and preferably have a concave profile extending laterally towards one another to provide superior strength to the balancing object when loaded under a user's weight. A frictional overmold may be formed over the arcuate roof to provide a frictional surface preventing a user's footwear from slipping off of the balancing object. Multiple balancing objects may be positioned on a flat, horizontal surface in a variety of orientations such that the user can target certain muscle groups to train for improving balance and proprioception.

Abstract: An adjustable stretching device 6 includes a stretching surface 20 that is raised off of the floor on which the user stands, flexes, and stretches the calf and lowers the leg muscles. The stretching surface 20 can be angled along a primary longitudinal angle 26 to produce a more intense stretch. Specifically, the stretching surface 20 can be angled up to 90 degrees. Additionally, the user can put a leg up on the center pad 50 and stretch the hamstring muscles. The adjustable stretching device 6 also includes a padded framework that allows a user to put a leg up on any of the bars at different heights and further stretch the leg muscles. The padding also provides protection for the bar. The stretching surface 20 of the adjustable stretching device 6 is preferably a dual stretching surface 20 that is angled either away from or towards the longitudinal centerline of the dual stretching surface 20 along the primary longitudinal angle 26. This angle can range between 0 and 45 degrees.

Abstract: An exercise apparatus that will exercise at least five groups of muscles is disclosed. The exercise apparatus exercises the abdominal muscles, the serratus muscles, the intercostals muscles and the leg muscles. The apparatus uses a seated position for the person exercising and the exerciser is seated on a swing. When the exerciser contracts his or her abdominal muscles while lifting the legs, the swing rotates such that the exerciser's feet rotate upward. When the exerciser releases tension on the abdominal muscles, the apparatus goes back to its original position. When the exerciser bends forward, the above four groups of muscles are exercised.

Abstract: A device is provided for exercising the muscles of the back, which includes a chair seat and a rod fastened to a feet plate. The feet plate is coupled to a tilting member which is surrounded by a damping member. The damping member can rest on a bottom plate which is fastened by a fastening member. A cloth which surrounds the damping member and is fastened to the feet plate can replace the bottom plate and the fastening member. It is further an advantage that the rod is telescopic. The tilting member can have a circular cross section and a downwardly conical form. The damping member which surrounds the tilting member is of a flexible material and may be fastened to the feet plate by the fastening means member which can assist in dampening the movement of the tilting member.

Abstract: A twist machine for whole body exercise comprises a base (10), a rotary post (20) rotatably mounted on the base, a seat (30) provided on the top of the rotary post, a handle (60) operatively associated with the rotary post for rotation about the rotary post, and a reverse rotator (50, 70, 72) for causing the rotary post and the handle to turn in an opposite direction with each other when one of the rotary post and the handle is subjected to forcible rotation. The reverse rotator is provided with a sun gear (70) affixed to the rotary post, a plurality of planetary gears (72) rotatably mounted to the base in a meshing engagement with the sun gear and a ring gear (50) fixedly secured to the handle in a meshing engagement with the planetary gears.

Abstract: A balance apparatus for use during an exercise routine includes a frame and a platform having a surface against which the body of an individual is positioned or bears against during the performance of an exercise routine. The platform is pivotally connected to the frame to accommodate a pivoting of the platform relative to the frame about at least one pivot axis so that in order for the individual to maintain the platform in a balanced and stationary condition relative to the frame as he is positioned or bears against the platform, the individual must distribute any force which bears against the platform surface substantially evenly or equally about the at least one pivot axis.

Abstract: 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 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: 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.

Abstract: A multi-purpose surfing balancer including a base plate, a resilient rubber body, a step-on board, and a central pole. A bottom surface of the rubber body being fixed to a middle of a top of the base plate. The top of the base plate being fixed to a middle of a bottom of the step-on board. The central pole being fixed to the surface of the step-on board for a user to stand on the step-on board with both feet splitting over both ends of the resilient rubber body in position to practice balancing or surfing by the support of the resilient rubber body and swing motion controlled by the user.

Abstract: An exercise apparatus for strengthening a person's muscles when the person is in contact with an apparatus part for support of the person's buttocks and/or back and/or stomach/chest. One apparatus part, for example, a support board for the person's back and/or buttocks is made having positional instability in connection with a support bearing.

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 device having a first base member with foot disks mounted thereon for rotating a person's lower body and a second base member including handles to be grasped by a person for rotating a person's upper body. The first and second base members are mounted so as to be capable of rotating about the same vertical axis. The first and second base members may be mechanically interconnected so as to be forced to rotate together but in opposite directions. Alternatively, the first and second base members may be disconnect from each other so that they can rotate independently. Either may also be fixed so as not to rotate. Similarly, the foot disks may rotate on the first base member independently of the first base member or can be fixed thereto so as to remain stationary in relation to the first base member. The second base member may be mounted overhead with the handles extending downwardly or it may be mounted adjacent the first base member and concentric therewith with the handles extending upwardly.

Abstract: A twister includes a follower slidably attached onto a housing and having a channel and a rack, a rod rotatably attached to the housing, a lever secured to the rod and having a pin attached to a free end and slidably engaged in the channel of the follower, to allow the follower to be forced to slide relative to the housing in a reciprocating action when the pin and the lever are rotated relative to the housing. An axle is rotatably engaged to the housing and includes a pinion engaged with the rack of the follower, to allow the axle to be rotated in a reciprocating action when the follower slides relative to the housing in the reciprocating action. A foot support is secured to the axle and driven by a motor.

Abstract: A tilting inversion exerciser includes a stand having an axle, and a table rotatably attached to the axle of the stand, to support a user, a driving device attached to the table and having a reduction gearing coupled to the axle, to drive and rotate the table relative to the stand, and a control device for controlling the driving device to rotate the table relative to the stand. The stand includes a latch engaged with the axle, to secure the axle to the stand, and to prevent the axle from being rotated relative to the stand. The stand includes an apex-connecting plate to support the axle and having a hub to rotatably receive the axle. A switch may be disposed on the table, and actuatable by an actuator device, to position the table to the stand at selected angular position.

Abstract: A gym board has a board and an insert body mounted on the board. The board has a bottom surface, a center holder and at least two side holders. The insert body has four insert blocks and each insert block can be mounted in the center holder and the side holders.

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: An apparatus and method for improving balance featuring a pedestal disk connected by a stem to a fulcrum disk which is supported on the floor. The user stands on the pedestal disk and performs exercises. Improvement of balance is measured by a timer which measures the period when the fulcrum is flush on the floor. An associated sighting device guides the user to maintain a fixed line of sight while performing exercises to improve eye-proprioceptive coordination. As the user improves his balance, he substitutes ever smaller fulcrum disks.

Abstract: An air cushion for exercise in accordance with the present invention has a bladder (10) and a ballast stay (15) accommodated inside the bladder (10). The bladder (10) has a flat bottom (11) and a bulge top (12). The ballast stay (15) is thermally welded to the bottom (11) to stiffen the bottom (11) to make the air cushion stably placed on the ground. Combining the bladder (10) and ballast stay (15) in one piece makes the configuration of the air cushion simple and also simplifies the manufacturing process to reduce product cost of the air cushion.

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 tiltable exercise bench featuring a pad hingeably mounted on a vertical post by a cantilevered hinge joint such that the bench can be tilted to a selected angle depending on the requirements of the user. An arcuate bar with notches on one edge has ends secured to the underside of the pad, extends downwards toward the base of the bench. The arcuate bar has notches formed along one elongated edge. A spring-loaded lever is arranged to engage a selected one of the notches whereby the bench is fixed at a selected angle of tilt. The lever can be operated from the left or right side of the bench. A series of tubular bars, affixed perpendicular to the underside of the bench support bar, provide selectable positions for telescoping onto a bar attached to the bench seat or a bar attached to a padded bar for performing situps or back extensions.

Abstract: A balancing board allowing for selection of a desired degree of stability is disclosed. The balancing board has a platform and a hemispherical fulcrum slidably mounted to platform and bifurcated into a pair of pivot members. Each pivot member is independently positionable along an underside of the platform opposite of an engagement surface upon which a user positions themselves to practice balancing training techniques. When the pivot members are slid together, the balancing board is freely pivotable about any axis in the plane of the surface on which the pivot members are resting. Conversely, when the pivot members are spaced apart from each other, the balancing board resists pivoting in a direction aligned with the axis along which the pivot members are slidable.

Abstract: A generally rectangular exercise board with curved ends has an upper planer support surface. Beneath the support surface, are two projecting spaced parallel arcuate rockers. Each rocker has a flat portion adjacent to one long edge of the rocker board. The flat sections makes an angle of approximately 45° with the planar surface of the board. A hemispherical projection is formed between the two rockers. A band of rubber is fastened to the board between the rockers which is arranged to accommodate a foot placed between the band of rubber and the bottom surface of the board so the front portion of the foot is elastically biased against the board and exercises can be performed by moving the foot away from the board to induce elastic strain in the band of rubber.

Abstract: A device for support and elevation of the lower extremities. More specifically, the invention is a leg elevator that provides calibrated, adjustable support for the upper leg, the lower leg and the foot. The leg elevator is adjustable to many different positions through the use of three independent adjustment mechanisms. The upper leg portion of the leg elevator can be adapted to accommodate people that have upper legs of various lengths. The height of the lower leg portion is also adjustable, and the relative angular position of the upper and lower leg can be varied from a generally flat position, to a substantially bent position. The invention can be used to provide elevation for either leg separately or for both legs simultaneously. The leg elevator is lightweight, easily disinfected, and can be collapsed to a relatively flat position for ease in transport and storage.

Abstract: An ankle, leg and hip exercising device is disclosed which includes a parabolic-shaped base portion having a foot supporting and retaining portion at the upper end thereof. A plurality of pipe stubs are secured to the device which are adapted to receive weight supports thereon. At least one of the upstanding pipe stubs is designed to have a flexible tubular member positioned therein which extends upwardly therefrom so that the user may either resist the movement of the device in any of its 360° permissible movements, and also enables the user to cause the movement of the device in any of its 360° movements. The foot of the user is securely received in a recessed portion of the foot supporting and retaining portion to positively maintain the user's foot in the proper position. The device of this invention may be used while either sitting, reclining or standing.

Abstract: A stepping exerciser includes a base having a frame, a lever having a middle portion pivotally secured to the frame and having two ends, and two foot pedals rotatably attached to the ends of the lever to rotatably support users. The stepping exerciser includes a simplified and compact structure that is excellent for storing and transportation purposes, and includes rotatable foot pedals for comfortably supporting users.

Abstract: An exerciser includes a foot support disposed on a base to support feet of users, a handle rotatably attached to the base with a shaft, a pulley secured to the handle, and a seat rotatably supported on the pulley to rotatably support the users. A cable may be coupled between the pulley and the foot support, to selectively couple the foot support to the handle via the pulley. The foot support includes a lever pivotally secured on the base, and the cable includes two ends coupled to the ends of the lever with brackets. Each of the brackets includes an end panel having a passage to receive a tube of a barrel which includes a passageway to receive the ends of the cable.

Abstract: An exercise assembly structured to direct the foot-ankle-leg, knee, etc. and associated portions of a person's body through a plurality of different paths of movement, wherein each path of movement comprises an at least partially different configuration such that exercise resulting from the various movements will be concentrated on predetermined portions of the body being exercised. The platform is suspended by a support assembly interconnected to a base and is preferably, but not exclusively, directed through the aforementioned paths of movement manually by the user. A sensor assembly including a processor may determine and store selected movements of the platform for graphical or other visual display to the user and for programmed duplication of the sensed paths movement when desired.

Abstract: A twist exerciser includes a platform rotatably supported on a base, and one or more rotary members rotatably supported in the platform to selectively support feet of users, and to allow the feet of the users to be rotated relative to the platform when the platform is rotated relative to the base. The rotary member may be rotatably supported on a seat of the platform with a pivot pin, and the platform may include a cover having one or more openings to receive the rotary members. One or more belts may apply a resistive force against the platform. A handle may be rotatably supported on the base and coupled to the platform.

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: 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: An exercise ball device has an elastic cable, two end hooks disposed on two ends of the elastic cable, a ball having a retainer ring to receive one of the end hooks, a treadle having a hole, and a soft cushion having a retainer ring to receive the other one of the end hooks, which penetrated a hole on a treadle.

Abstract: The invention provides a multi-angle Achilles tendon stretching pedaled trainer, including two arc-shaped rockers with one on the left and the other on the right. Besides, two pedals that can be stepped on by a user are provided on top of each rocker, with one on the front and the other on the rear. Also, an axle pole is provided between the two rockers for connection, allowing the two feet on the pedals to make forward and backward swaying motions in order to twist waist and hips, strengthen leg muscles and develop body balance.

Abstract: A device is disclosed that enables a user to perform a simulation of walking and running. The device comprises a locomotion platform which is has a concave upward facing surface. The platform and or the user's footwear incorporate a means to reduce friction to allow their feet to move freely.

Abstract: A device includes a foot-engaging element that can move in a spherical pattern and has resistance to movement generated by elastic straps. The straps can be added, changed or removed to customize the resistance to the exact pattern required to achieve maximum benefit for the user. The device does not require a user to place his or her weight on their foot to exercise, strengthen or rehabilitate an ankle. The device can be easily assembled and disassembled and transported.

Abstract: A supporting mount for a tilting body inversion frame having standing means and spaced trunnion-bearing plates in an elevated position for bearing the trunnions carried by the tilting body inversion frame. Each of the trunnion-bearing plates has a blind slot for receiving and bearing the trunnions. At least one of the trunnion-bearing plates further include a keeper movable relative to the trunnion-bearing plate between locking position and open positions. The keeper has at one end a hook portion which in locking position secures the respective trunnion in bearing engagement, and at the other end a lever portion extending away from the trunnion-bearing plate, and in-between an axial portion through which the keeper is pivotally connected onto the outer side and proximate to the upper end of the trunnion-bearing plate.

Abstract: A lower extremity rehabilitation and exercise device has a platform to which at least one foot is secured. A fulcrum is placed beneath the platform at various locations. Exercises performed by the user involve the platform pivoting about the fulcrum in a manner that requires the use of specific muscles or muscle groups. Various fulcrum locations correspond to particular muscles or muscle groups which are stressed while the exercise is performed. The exercises build strength in the muscle or muscle groups which are stressed during exercise. Proprioception within the stressed muscle or muscle group is also developed during exercise.

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 dynamic balance board is described that incorporates a means for providing objective measurements on a user's dynamic balance. The balance board comprises a top board, a rocker base and a plurality of force sensitive transducers strategically positioned on the rocker base. When a user stands on the top board the rocker base permits the oscillation of the top board about an equilibrium position. The force sensitive switches then provide output information regarding the angle of the top board and the rotational movement of the balance board relative to the equilibrium position. By monitoring the output information the dynamic balance board provides an objective measurement of the user's ability to balance on the top board.

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: An exercise device comprising a base and a platform rotatably tiltably connected to the base, wherein the invention includes a first continuous passive motion embodiment and a second continuous active motion embodiment. The continuous passive motion exercise device (e.g. non-motorized) may utilize the nested engagement of a concave surface located in the base and a convex surface extending from the platform to provide a rotatable tiltable connection therebetween. The device may also utilize at least one roller bearing located within the base to assist in permitting the rotatable tiltable motion of the platform relative to the base. The continuous active motion exercise device (e.g. motorized) utilizes a motor housed within the base to drive the rotatably tiltably connected platform.

Abstract: A leg exerciser includes a casing having a slot in a top thereof, a transmission mechanism mounted in the casing, a legrest, and at least one massage rod. The transmission mechanism includes a motor and a movable block extending through the slot of the casing. The movable block moves reciprocatingly along the slot of the casing when the motor is turned on. The legrest is fixed to the movable block to move therewith. The legrest has two recessed portions for supporting a user's legs. The massage rod is attached to the movable block to move therewith and includes at least one massage portion for providing a massaging function. At least one wheel is mounted to the massage rod and in rolling contact with the casing.

Abstract: A multipurpose exercising apparatus is constructed to include a plastic flat base frame positionable on a flat surface, the base frame having a plurality of eyes spaced around the periphery thereof, a semispherical shell made from polyurethane and covered on the base frame, the semispherical shell having a plurality of raised portions over the outer surface thereof for imparting a massaging effect to the user using the multipurpose exercising apparatus, and a plurality of elastic pull cords selectively fastened to the eyes of the base frame for pulling by the user.

Abstract: A device is designed to exercise foot muscle and is formed of a base on which two rotary mounts are disposed. The rotary mounts are provided with two upright fastening plates, each having a fastening hole. Two footrests are provided in the underside with two pivoting plates, each having a pivoting hole. The footrests are pivotally fastened to the rotary mounts such that the pivoting plates and the fastening plates are pivoted together by two pivots which are disposed in the pivoting hole and the fastening hole. The footrests turn horizontally along with the rotary mounts and turn up and down on the pivots.

Abstract: The present invention is an impact resistant composite and helmet made thereof. The helmet comprises an impact resistant composite shell. The composite shell comprises a plurality of prepreg packets. Each prepreg packet comprises at least about 2 and preferably 5 to 20 prepreg layers. There are from 2 to 50 and preferably 5 to 20 prepreg packets. Each prepreg layer comprises a plurality of unidirectional coplanar fibers embedded in a polymeric matrix. The fibers of adjacent layers in the prepreg packets are at an angle of from 45.degree. to 90.degree., preferably 60.degree. to 90.degree., more preferably 80.degree. to 90.degree. and most preferabaly about 90.degree. from each other. The angle of the fiber in alternate layers is preferably, sustantially the same.