Abstract: An exercise system for one or more persons including a frame, at least one game element, at least one striking member operable by a person to engage the game element, and a resistance system connected to the striking member for resisting the movement of the striking member as it is operated by the person, whereby the person performs exercise while operating the striking member to engage the game element.

Abstract: An exercise bench has a platform with a bracket extending thereunder. Two substantially tubular legs extend thereunder and rotate about separate axles. Pins are connected to two arms which in turn are connected to a torsion bar to urge the pins into registration with apertures or support surfaces of the legs. A handle is connected to the two arms for operation by the user to move the pins and adjust the leg positions. Free weights are attached to one of the legs for use in the performance of exercises.

Abstract: An aesthetically pleasing weight for shoes allows a user to customize his or her workout. The shoe weight slips under the shoelaces of workout shoe. The shoe weight is held firmly in place by the shoelace tension and shape of the shoe weight. A secondary securing cord can be used as a backup to hold the weight in position. The intensity of the workout can be varied by the number and magnitude of weight the user selects. Different muscle groups can be targeted by adjusting the position on the shoe on which the weight(s) is secured. The shoe weight is attractively shaped of polished metal. Conversely, the shoe weights can be coated. The coating can be colored, textured or the like.

Abstract: A device provides improved kick stroke simulation for the design and development of diving fins. The device includes a mechanical leg which provides the simulated kicking action and a controller for controlling the kicking action. The device is capable of controllable and reliable repetition of kicking strokes as would be used in swimming, thus allowing increased integrity of measured data related to the design of the diving fin itself. Use of the device allows for optimum design of diving fins depending on the environment in which the diving fin is to be employed. Design parameters improved include, inter alia, thrust of the diving fin and the effect on ankle fatigue of the user.

Abstract: A coupling is disclosed for coupling two objects together and which includes two elements. A first element is adapted to be attached to one of the objects which is a tube by a ball-shaped member inserted into the interior of the tube. The second element is also adapted to have the other of the objects attached to it and includes a first side opening and a second opening. In order to couple the two elements together, the first element is moved sideways through the first side opening of the second element. The first opening flexes to permit passage of the first element into a cavity of the second element where it is held with a portion of the first element extending through the second opening of the second element. A cam is also provided on the first element which cooperates with the first side opening of the second element when the elements are coupled together to cause the first element to be discharged from the cavity of the second element upon rotation of the elements relative to each other.

Abstract: A tunnel play structure for a child's amusement comprised of at least one collapsible tunnel element made from flexible material surrounding a plurality of rigid framing supports. Each tunnel element is elongated having a closable entrance at either end. At least one closeable entrance is also disposed along the sides of the tunnel element in between the framing supports. The tunnel elements can be selectively joined together so that an entrance on one tunnel element aligns with an entrance on a second tunnel element. This enables a plurality of tunnel elements to be joined to create a continuous enclosure in a wide variety of configurations. Each tunnel element can also be collapsed in an accordion-like manner, thereby allowing the tunnel structures to be easily stored when not in use.

Abstract: Apparatus (10) is disclosed including first and second supports (24) for supporting a stationary bicycle, with the supports (24) secured at adjustable longitudinal locations between first and second longitudinal rails (12). Cords (50) having grips (52, 54) on the opposite ends thereof are adjustably and slideably secured intermediate their ends at any location intermediate the ends of the longitudinal rails (12) by pivotable cam devices (60, 160) slideable and pivotable in upper channels of the rails (12). Additionally, the pivotable cam devices (60, 160) allow the lengths of the ends of the cords (50) to be adjusted relative to the rails (12). Thus, while pedaling and/or supported on the stationary bicycle, the user can exercise his upper body by stretching the cords (50) extending at various angles from locations in front, behind, and vertically below the user and with the desired tension depending upon the length of the cords (50) relative to the rails (12).

Abstract: A hand exerciser device for fatigueless muscular exercising of a user's hand, arm and wrist, comprising: a first and a second spherical ball, each sized to fit inside the palm of a user's hand and surfaced for comfortable skin contact. A rigid connector tube interconnects the first and second balls by having its opposite end portions slidingly extending through a bore in the wall of each corresponding ball, wherein free rotational motion of the first and second ball members independently of one another is achieved. The intermediate section of the connector tube forms an accordion pleating, providing limited universal joint capability.

Abstract: This exercise device extends the forearms of a human user to permit running on all fours as an animal runs. The device, usually used as a set of two, is long enough to approximately equalize the user's hip to foot distance and the distance from the user's shoulder to the device's extended end. It has a brace to be grasped by the user's hand with the back of the hand in the forward direction, with an arm embracing member to grasp the elbow end of the forearm, and a forearm support in contact with at least a portion of the wrist end of the forearm at its forward facing surface. The brace is connected to a post. The brace and post are slidable engaged and coupled by a shock absorbing coupling. The outer end of the post terminates in a foot that, during use, permits the brace and post to rotate about an axis perpendicular to the forward direction.

Abstract: An inversion practice exerciser includes a base member including a horizontal beam and two side beams each attached to one distal end of the horizontal beam. A pair of handgrip members are each mounted on a corresponding one of the two side beams. A pair of upright members are mounted on the base member and each includes a lower post and an upper post pivotally engaged with each other. A pair of shoulder supporting members are each mounted on a corresponding one of the two upper posts and each have a buffer pad mounted thereon. A pair of buffer pads are mounted around an upper end portion of a corresponding one of the two upper posts.

Abstract: An apparatus for testing and/or strengthening pelvic floor muscles includes an external casing having two separate pieces threaded or snap fit together, and a set of inserts having different weights being individually positioned in the external casing.

Abstract: An apparatus and method for skipping about a pole includes a collar slidably mounted on a vertical pole and means for clamping the collar at various heights. Around the collar are at least two attachments for skip (jump) ropes. The invention may use as attachments eye-bolts or the like screwed into threaded holes in the collar, with swiveling snap rings fastened to the inner ends of the ropes and clipped to the eyebolts with the skip ropes attached to the snap rings; in this embodiment the eyebolts act both as rope attachments and as clamping members. The eyebolts or rings may also be permanently attached to the pole. As many users as there are attachments may use the invention at once.

Abstract: An exercise device designed to be used with a rod or a bar. The exercise device is lightweight and detachable. It does not require clamps or screws to secure it to a tabletop. The exercise device is also portable.

Abstract: The present invention discloses an adjustable stretching device for stretching numerous muscles of the human body comprising a plurality of adjustable telescoping poles adaptable to extend within the span between the floor and most standard ceilings or doorways. Attached to the center telescoping pole is an adjustable leg support extending from both sides of the center pole. The leg support includes a clamp mechanism for easily and quickly adjusting the placement of the leg support on the center pole to effectuate numerous stretching exercises.

Abstract: A stomach muscle monitoring/warning device includes a belt housing with a slide plate that moves a pin into contact with a flexible sounding spring inside the belt housing to mechanically produce a subtle audible clicking sound when the stomach muscles are expanded beyond a preset limit for warning the user to retract the stomach muscles to improve posture.

Abstract: A modular step exercise unit includes a plurality of individual steps. Each step is in the form of a base having a horizontal platform which comprises the upper surface of the base with depending sides forming an apron which terminates in a plane parallel to the platform so that the apron can be placed directly on a support surface, such as a floor. The steps may be made of differing size so that during storage or even in certain use conditions, steps which are not being used can be stored within the periphery of the apron of the largest step. A multi-level step can be formed by mounting a smaller step on a larger step. The individual steps could be used abutting each other or spaced from each other to provide a multi-level arrangement which includes individual steps and the floor.

Abstract: A variable resistance slide board comprises a thin flexible sheet having a low friction upper surface. The sheet may include start-stop blocks located on the sides or elsewhere for engaging the foot or hands of the user while starting or pushing and while stopping. The start-stop blocks may be permanently attached or adjustably mounted. The sheet is mounted on a compressible mat. Additionally, the sheet is made from a deformable material so that the resistance can be controlled in accordance with the characteristics of the compressible mat.

Abstract: An athletic training device is described for improving the grip strength and exercising other muscle groups of the user, comprised of a single strap secured together at three separate junctions so as to form two large loops and a small loop, with a clasping mechanism attached to the small loop. A method for using the device is also described, in which a user secures a basketball within the device and attaches the clasping device to any of a number of existing resistance devices, such as wieght training machines with cable and pulley systems, free weights, elastic cords, springs and athletic training machines employing some form of these resistance devices.

Abstract: A module assembly mechanism 10 includes a platform 12 which supports all other members of the system. The platform 12 is constructed of four angular side connectors 14 which are attached at the ends 16 thereof so as to form a rectangular base 18. A support column 22 is rigidly attached to each corner of the base 18. Each of the support columns 22 includes an inner angle 24 and an outer angle 26 which angles are attached to one another by a weld bead 28 at the corners thereof. A stanchion 40 is rigidly attached to the outer angle 26 of each of the columns 22. Each stanchion 40 extends upwardly from the column 22 for connection to a roof module, and extends downwardly for contact with the ground or whatever foundation is provided for placement of the playground equipment.

Abstract: A method of performing weight training exercises with a pivoting exercise apparatus is disclosed. A pivoting exercise apparatus is provided having a frame that is maintained in a vertical orientation by a base. An exercise bar is located across the frame. Weights may be located on the frame. To exercise, the frame is pivoted about the base from its vertical orientation to a non-vertical position by an exerciser. The frame is then moved from its initial non-vertical position to a different non-vertical position, requiring the exerciser to exert effort to move the frame. Repetitions of the movement may be done to increase the amount of effort exerted by the exerciser. The frame is then relocated back to its vertical orientation. Further exercises may be performed on the vertically oriented frame.

Abstract: Apparatus for exercising the penis has a torsion bar with an anchored end and a free end, and a fulcrum rod movably mounted above the torsion bar for adjusting the downward resistive force of the free end. Padding is provided at the free end against which the penis can be flexed for improving circulation and strengthening the muscles to improve and maintain sexual function.

Abstract: The present invention is an athletic harness for enhancing thoracic freedom while supporting a barbell during front squat exercises, said harness comprising a pair of rigid, over-the-shoulder, inverted "J"-shaped braces for maintaining the dimensional stability of the harness during said front squat exercises, where the braces include extended anterior portions, posterior portions that engage the shoulders rearwardly, and yoke portions that engage the shoulders supportively; a means for securing the lower extremities of the anterior portions together; a means for supporting the abdomen during said exercises; a pair of pins projecting forwardly from the anterior portions, where the pins are adapted to carry the bar of the barbell during the front squat exercises; and a means for preventing splaying of the braces during the front squat exercises.

Abstract: Exercise aids for doing inclined pushups which may be positioned on the top of an elevated surface e.g. a table top. The handle bar of each aid is held in one hand and the person plants the bottom of the feet on the floor and does the pushup. The aid has a handle bar which is inclined at an angle of about 30.degree..+-.5.degree. with respect to the bottom surface of the aid which supports it to permit back and forth push up type motion.

Abstract: A new and improved motorized jump rope apparatus includes a first support assembly which includes a first end portion adapted to be supported by a ground surface. A battery-powered motor assembly is connected to the first support assembly, and a first jump rope assembly is connected to the battery-powered motor assembly at its rotational axis. The first end portion of the first support assembly may include a threaded portion adapted to screw into a ground surface. The first jump rope assembly includes a first mid-portion connected to the battery-powered motor assembly at the rotational axis of the battery-powered motor assembly. Two free end portions of the first jump rope assembly may be displaced a predetermined distance from the rotational axis. In this respect, the first jump rope assembly is C-shaped. The first jump rope assembly may include a second mid-portion located along the rotational axis. In this configuration, the first jump rope assembly may be rectangle shaped or circle shaped.

Abstract: An exercising device of an overall length relating to the length of an exercising person lying prone thereon and of a width relating to the width of an exercising person. The device has a first section having a concave portion for accommodating the back of the exercising person, a second mid section having a convex portion of an overall height greater than the first section for accommodating the body portion of an exercising person between the gluteus maximus and the lower back portion of an exercising period and a third section having a convex portion of an overall height greater than the second section for accommodating the rear knee portion of an exercising person, the second section being spaced from the third section by a concave portion for supporting the gluteus maximus of an exerciser.

Abstract: Apparatus (10) is disclosed including first and second supports (24) for supporting a stationary bicycle, with the supports (24) secured at adjustable longitudinal locations between first and second longitudinal rails (12). Cords (50) having grips (52, 54) on the opposite ends thereof are adjustably and slideably secured intermediate their ends at any location intermediate the ends of the longitudinal rails (12) by pivotable cam devices (60) slideable and pivotable in upper channels of the rails (12). Additionally, the pivotable cam devices (60) allow the lengths of the ends of the cords (50) to be adjusted relative to the rails (12). Thus, while pedaling and/or supported on the stationary bicycle, the user can exercise his upper body by stretching the cords (50) extending at various angles from locations in front, behind, and vertically below the user and with the desired tension depending upon the length of the cords (50) relative to the rails (12).

Abstract: A device for building muscle while walking. A weight bag and shoulder bag form a unit which may be filled with varying amounts of weights and carried over a user's shoulder and upper back allowing the user complete mobility while building muscle.

Abstract: A device which mounts on uprights which enables an individual, when gripping it, to go through the range of motion of the pronated pull up exercise easier than gripping a round bar, due to an increase in muscle capacity. This is made possible by having two knobs for the thumbs to grasp projecting from the top of the device next to the center sides of two curves cut out of the top of the rectangular body of the device. In use, the device is first mounted on uprights that are high enough so that the user is suspended from the ground when gripping the device. The user then wraps his or her fingers around the curved openings and clutches the thumb knobs with his or her thumbs and performs the pronated pull up exercise, strengthening the muscles of the trunk and arms and stretching the back.

Abstract: An improved pedal assembly is provided. The pedal assembly comprises a housing which can be readily attached to the supporting member of a stepping machine. A sliding plate is slidably received and moved reciprocally within a recess formed in the housing. The sliding plate is provided with a plurality of projecting rails. A pedal is disposed above the recess having a plurality of massaging members disposed in through opening formed in the pedal. A pair of covers are disposed above the pedal and can be pivotally displaced to expose the massaging members. An actuating means is interconnected to the sliding plate to reciprocally move the sliding plate as the pedal is displaced to simultaneously displace the massaging members to massage the soles of the user's feet.

Abstract: A plurality of devices having a physiologically inert plastics outer surface and each have identical size and shape, but are of graded weights. A device is inserted into the vagina of a subject, and if the pelvic floor muscles are capable of retaining that weight, the device is replaced by a heavier one. The heaviest device that can be retained is a measure of a pelvic floor muscle strength, and the muscles can be exercised by retaining the device for a predetermined time, such as 15 to 20 minutes per day.

Abstract: An exercise apparatus provides support and coordination of exercise motions to the user. The exercise apparatus has two exercise bars, two short exercise bars, a stabilizing bar, and a device for coupling the two exercise bars or the two short exercise bars at one end. The exercise bars have removable hand grips for helping the user maintain a grip on the exercise bar, wrist straps to provide for a level of safety when exercising with others when the grip is lost on the exercise bar, and a shoe that mounts on the stabilizing bar. One or both of the exercise bars may include lights mounted along the length of the bar. The lights provide an apparatus to help the instructor and user determine the position of the bar in space and also provide aesthetic appeal. The stabilizing bar attaches securely to the floor, and includes recesses for mounting the exercise bar. The stabilizing bar attaches to the floor and provides a stable point of reference.

Abstract: An exerciser for the abdominal muscles. A shell (22) has a weight (24) attached to it by means of a belt (30). The shell (22) is formed such as to present an edge (26). The shell (22) is attached to the waist by a second belt (34) so that the edge (26) is brought to bear against the abdominal muscles selected by the user. The muscles selected by the edge (26) are exercised by exerting them against the resistive force of the weight. Tactile feedback from the edge (26) is used to assure the exercise of the desired muscle group. The abdominal muscles are exercised by holding the edge (26) in place centrally and vertically on the abdomen A and exerting and relaxing the abdominal muscles against the edge. Alternatively, the edge may be forced against the abdominal muscles; handgrips may be provided for this purpose.

Abstract: A horizontal stepper apparatus including a pair of pedal assemblies connected to a pair of cable and pulley assemblies may be used to simultaneously exercise the arms and legs of a user, with resistence force being provided by a hydraulic cylinder. The apparatus may alternatively be utilized to separately exercise the arms by rotating a seat 180.degree..

Abstract: A shirt, to be worn on the upper torso of an individual having a waist and waist circumference and a chest and chest circumference, having an upper portion corresponding to the chest area and an upper portion circumference and a lower portion corresponding to the waist area and lower portion circumference wherein the upper portion circumference of the shirt is substantially less than the chest circumference of the wearer and the lower portion circumference is substantially the same as the waist circumference of the wearer. Reinforcement members and panels can be affixed to the shirt to provide additional strength. The shirt can be made of stretchable material and used in weightlifting or for medical rehabilitation.

Abstract: An exercise apparatus for strengthening the muscles of the upper body and arms includes a handle means, a connecting means, and a bias means or counterweight system. The connecting means is telescopically positioned within the handle means. The bias means, or counterweight system, provides the resistive force desired during a work-out period.

Abstract: An exercise system for one or more persons including a frame, at least one game element, at least one striking member operable by a person to engage the game element, and a resistance system connected to the striking member for resisting the movement of the striking member as it is operated by the person, whereby the person performs exercise while operating the striking member to engage the game element.

Abstract: An exercise machine (10) and method for testing and exercising the cervical muscles of a patient or user. A movement arm (58) is mounted for pivotal movement about a horizontal axis defined by stub shafts (64, 66) and has a head pad (60) adapted to be contacted by the head of the patient. The exercise machine (10) has a chair (22) mounted for rotation to a desired angular position and mounted for vertical adjustment by actuation of a foot lever (38) to position the chair (22) relative to movement arm (58) and head pad (60). Chair (22) is also mounted for translatory horizontal movement parallel to the pivot axis of the movement arm (58) and for translatory horizontal movement perpendicular to the pivot axis of the movement arm (58) by movable bases (45, 46) thereby to precisely position the head of a user relative to head pad (60) while the user is seated in the chair (22) and pivoted among angular positions.

Abstract: A personal exercise device on which an exerciser may slide back and forth. The exercise device includes a sliding mat as well as first and second end pieces. Each end of the mat defines a series of apertures. Each of the end pieces include a plurality of bosses and posts, which engage the apertures of the mat. Such assemblies prevent the mat from ripping away from the end pieces while an exerciser uses the mat and pushes against the end assemblies with her feet.

Abstract: An apparatus constructed to be used as a jump rope which includes a tube which sprays water upon a user jumping in a predetermined area. The apparatus includes a connection to a water source, a first handle including an on/off switch and a second handle. An auxiliary clip-on handle may be used for shortening the tube length to permit use by a single person.

Abstract: A bumper-attachment assembly is disclosed for attaching to an elongate slideboard of a lateral movement trainer a bumper which includes an inner region with an impact surface, and outer, bottom and top regions. The assembly includes slideboard-receiving structure formed with a groove which is positioned in the bottom region at an angle of about 15.degree.-30.degree. that slopes upwardly with respect to a plane containing a bottom surface of the bottom region and away from the impact surface. The assembly also includes slideboard-fastening structure positionable adjacent the slideboard-receiving structure and operative to fasten a first end of the slideboard to the bottom region. The assembly also includes a protective-decorative covering for the bottom region, and which may be structured to cover the top, inner and outer regions of the bumper.

Abstract: An exercise monitoring device ( 10, 10A, 10B) comprising a pressure pad (11) in the form of a flexible bladder or bag which comprises a plurality of substantially separate compartments ( 12, 12A, 12B). There is also included pumping means in the form a pressure bulb or air bulb (24). There is also included feedback means in the form of an aneroid dial (18, 19). The feedback means permits monitoring or metering of pressure biofeedback transmitted to the pressure pad from the body part of the patient (34) in use. The feedback means may also comprise an analogue meter, digital readout or visual display device VDU which are all associated with the pressure transducer. There also may be provided valve means (21) in the form of a regulating screw which may regulate air flow between the air bulb (24) and aneroid dial (18, 19).

Abstract: Apparatus as an aid while performing bent knee sit-ups, comprising, in combination a strap of material adapted to extend and be positioned over the ankles of a person doing bent knee sit-ups, when in a deployed orientation, but adapted to be rolled up when in a storage orientation; a pair of assemblies, each assembly having a hollow base in a rectangular configuration with a slot within the upper surface for the passage of one end of the strap, each base having a circular hole for the passage of a fixed plug, each base having a cylindrical tube rotatively secured around the plug with a spring secured at one end of the plug and secured at the other end to the interior of the tube, and with one end of the strap secured to the exterior surface of the tube wherein the ends of the strap may be coiled about the tube when the spring is released and the assemblies in close proximity to each other when in a storage orientation, but wherein the assemblies may be spread apart to extend the strap to the deployed orientat

Abstract: Methods for producing a chipped wood surfacing material having unusually high shock absorbing capabilities are provided. The chipped wood is processed in order to give it a very high shock absorbing quality. This invention also relates to chipped wood having these unusually high shock absorbing characteristics.

Abstract: A leg muscle stretching and conditioning device in the form of a belt made from flexible material, and a pad member having a slot through which the belt is passed. The pad member is slidable along the belt and preferably includes a plurality of alternating ridges and grooves along its lower surface to permit the pad member to be slidable over a wide variety of surfaces. In use, the user applies one foot on the belt to hold the belt in position and to prevent movement of the belt in a direction along the belt longitudinal axis. The other foot of the user is placed on the pad member so that the user's heel is received within a recess formed on the top surface of the pad member. This foot is moved to convey the pad member along the belt and support surface employing the frictional force between the pad member lower surface and the surface over which the pad member is moved to insure stability during performance and to guarantee gains achieved.

Abstract: An adjustable and collapsible bench system (10) is provided for supporting the body of a user while allowing a plurality of orientations to be fixed at the user's behest. The bench system (10) includes a body support mechanism (16) which is adjustably mounted on a base frame mechanism (24). The body support mechanism (16) may be rotationally actuated with respect to the base frame mechanism (24) and releasably secured to the base frame mechanism (24) to provide a plurality of angular orientations of the body support mechanism (16) with respect to the base surface (12). The body support mechanism (16) may be rotationally collapsed to allow for a minimization of the dimensional volume of the bench system (10).

Abstract: A new and improved apparatus for exercising and dancing includes a resilient, stretchable band element capable of encircling at least two rigid objects, such as two persons. When two person are encircled by the stretchable band element, the first person can exert an outwardly directed first force against a first portion of the interior side of the band element. Then the second person, who is also encircled by the band element, can experience an inwardly directed second force exerted by a second portion of the interior side of the band element. In addition, the second person can exert an outwardly directed third force against the second portion of the interior side of the band element. This third force is opposite in direction to the first force. The exercising and dancing apparatus can also include two belts, each one for individually encircling one of the two persons who are both encircled by the common band element. Snap connectors can be used to attach the individual belts to the common band element.

Abstract: Apparatus for use in performing both anaerobic and aerobic exercise routines includes a bench having a body support platform with a plurality of legs and a rigid frame with at least one laterally extending cross piece at the forward end. A tubular member is affixed to the cross piece, in forwardly spaced relation thereto, extending vertically with its lower end in the said plane as the lower ends of the legs. A rod is telescopingly received in selectively adjustable relation to the tubular member, and a stability bar is affixed in a T-shaped configuration to the rod. A step is selectively positionable at the forward end of the bench with a notch in the step embracing the tubular member and a vertical surface of the step abutting the frame cross piece.

Abstract: A bar preferably formed of tubular aluminum is formed to have a yoke and extensions for holding the shoulders of a user in a neutral position for exercising. Trunk twists and bends may be performed using the bar to maintain positions of the arms and torso for maximum effectiveness of the exercises. The bar is configured for adding weight inside or outside and particularly at its ends for increasing the rotational moment of inertia of the bar to give the effect of greater weight. End caps are configured to conveniently secure weights within or around the bar, by friction and threaded engagement. Weight materials include water, shot, cylinders, wheels and annuli configured as dead weights. The weight greatly enhances the moment of inertia when the bar is in motion during exercises, and can also be used with a leverage advantage to increase its effectiveness over conventional dead weights.

Abstract: A pneumatic variable resistance rehabilitation/therapy apparatus for the balanced strengthening of musculature surrounding injured, weakened, and post-operative ligaments associated with the major joints of the lower extremities. In a preferred embodiment, a leg press machine is provided comprising a frame, a foot rest assembly including a foot rest pad, and a reciprocating carriage having a patient supporting bed surface thereon. A pneumatic circuit comprising a cylinder having a reciprocating piston therein, an accumulator, an air supply and a pressure regulator is provided for the variable progressive resistance against the movement of the carriage during the working stroke (where the patient straightens his/her leg(s)). The reciprocating piston rod is linked to the reciprocating carriage by a cable and pulley system to provide a longer and more physiologically tolerable working stroke.

Abstract: A portable rehabilitation device employing a suspension system to enable passive or active range of motion exercise of the knee or hip joint. The device has a base adapted to support the suspension system while the patient reclines to perform the respective leg exercises. The suspension system includes a linear track that retains three shuttles slidably positioned in series along the track attached to flexion, extension and leg support lines respectively. A pair of leg cuffs are connected to the leg support line and suspend the leg while isolating the knee joint. For passive suspension exercise, the leg support line is secured and the leg is suspended by only a single cuff at the ankle with the knee joint in a position of full extension. For passive motion exercise, the leg is suspended by both cuffs and the patient alternately pulls on handles attached to the flexion and extension lines causing alternate passive flexion and extension of the knee and hip joint.