Abstract: A forearm and wrist exercise device includes a base frame, a handle rod, a driver wheel, a driven yoke, a driven wheel and an adjustable tensioner. The base frame is attached to a stationary object, such as a wall. The handle rod extends from the driver wheel and the handle rod is pivotally retained by the base frame. One end of the driven yoke is pivotally retained by the base frame and the driven wheel is pivotally retained by the other end thereof. The driven wheel is forced against the driver wheel with the adjustable tensioner. A second embodiment of the forearm and wrist exercise device includes a base frame, a handle rod, a driver wheel, a tension belt and an adjustable tensioner. A third embodiment of the forearm and wrist exercise device includes a base frame, a hydraulic pump, a hydraulic flow valve and a pair of extension shafts.

Abstract: Apparatus for exercising the forearm muscles responsible for movement of the hand at the wrist. The apparatus comprises two rigid rings adjoined by, and allowed to rotate about, the axis of a central, cylindrical variable resistance mechanism. The rigid rings each support a handgrip that is allowed to rotate about the inner circumference of each ring at variable resistance settings set with a peripheral resistance mechanism including an externally threaded terminal end of each handgrip, a knurled sleeve with internal threads at one end and external threads at the other. The knurled sleeve can be rotated about the axis of each handgrip, through internal threads of the inner ring, into the inner surface of the outer ring thereby creating a desired frictional resistance. The desired resistance can be preset and returned to through the incorporation of click-stops.

Abstract: A handheld device for exercising, rehabilitating and/or strengthening the muscles, tendons and ligament in the hands, wrists and/or forearm, as well as enabling the simultaneous improvement in the full range of motion in these regions. The device includes an elongated adjustable locking member having a lower cushioned hand pad portion and an upper hand pad base, adjustably connected to an elongated finger grip bar. The finger grip bar has a finger grip receiving edge and a post attached to this edge for slidably receiving weights. The device enables the wrists, hands and forearms to work together, enabling the user to exercise an injured or surgically repaired wrist, hand or forearm with the assistance of the uninjured wrist, hand or forearm, thereby reducing the overall duration of time needed for rehabilitation and recovery.

Abstract: A cord-winding exercise apparatus for exercising wrists and forearms configured for mounting in a doorway, and for supporting at least one weight member to provide gravitationally influenced resistance, including a winding bar; at least one cord attached to the winding bar; an arrangement attached to the at least one cord for supporting the at least one weight member; and at least two brackets for mounting to a door frame, each bracket being formed with a winding bar receiving area for receiving and releasably supporting the winding bar in a rotatable, cord winding position wherein the door frame restricts lateral movement of the winding bar while the winding bar is disposed within the brackets.

Abstract: A muscle strengthening bar for the shoulders, arms, hands and wrist that includes a roll-up bar, a weight support by a plate on the end of a strap and a pair of handles on the roll-up bar. The user, by extending out the arms, can raise and lower the weight on the strap by rolling the handles attached to the roll-up bar. The rolling action of hands on the handles causes tension on the strap which is attached to the plate which supports the weight.

Abstract: A spring bar includes a spring, and two tubes are respectively connected to two ends of the spring. Each of the tubes has a slot, and a plurality of positioning recesses are defined in two insides defining the slot. Two mounting collars are respectively mounted to the two extensions on the two handles, and a through hole is defined through each of the mounting collars. Each of the two positioning members has a spring member which is biased in the mounting collar corresponding thereto and movably extends through the positioning hole and inserted in the slot. An annular groove is defined in each of the positioning members so that the handles can be pulled outward after the positioning members are pushed.

Abstract: An elastic exercising wand which can be squeezed, bent, twisted or pulled to benefit certain muscles; and having an elastic band snugly encircling its length under which the exercising operator may repetitively flex the hand or fingers in expansion exercises against its elastic resistance. A tension adjusting ring and attached anchoring hook are optionally present to control the band's resistance and provide tethering means, respectively.

Abstract: An open hand gripped exercise device includes an internal frame having an H-shape formed by a center bar assembly and end bar assemblies. The center bar assembly is adjustable in length, with outer sections secured perpendicularly to the end bar assemblies. The end bars have threaded ends to receive additional weight plates and retaining collars to adjust the overall weight of the device. The center bar and end bars have resilient cylindrical pads sleeved thereon to provide such a diameter as to require an open handed grip of the device for use in exercises.

Abstract: An exercise device with an elongated, angular body having a first end and a second end where the first end has a first chuck and the second end has a second chuck is disclosed. The first and second chucks are adapted to hold many different sizes, shapes, textures, and styles of turning knobs. The exercise device includes a tripod upon which the body may be mounted. The device also includes different gear ranges so that a range of resistance levels is available. A variety of different styles of turning knobs may be used with the device in order to provide a range of prehension, or grasping and seizing actions made by the hand.

Abstract: A leg column extends between a user's legs, and a connected foot column extends front to back between the user's feet. Front and rear foot rods beneath the foot column bear against the soles of a user's feet. Cushioned front, rear and upper weight rods are connected to the leg and foot columns to bear against the foot above the user's toes, the user's feet above the heels and the lower legs at the shins, respectively. Barbell weights are removably connected to the weight rods. The relationships of the foot rods and weight rods are adjustable to suit a particular user. The leg barbell is completely free from connection to any fixed structure and, although secured to the user's legs and feet for a variety of exercises, is readily disengaged. The weight rods and foot rods may be connected with telescoping mounting members or perforated barstock to facilitate convenient adjustment.

Abstract: Exercise devices which are arranged to replicate the feel and effect of exercising with free weights but providing resistance in two directions away from a null position are disclosed. One example of a device comprises a handle 1021 which can be grasped by an exerciser and which is mounted on an articulated arm portion 1002 which in turn is mounted to a frame 1005. A weight 1031, lever arm 1032 and hydraulic transmission means provide resistance to movement. A first arm member 1022 is pivotally mounted to allow pivotal movement about an axis. Pivotal movement about this axis in two directions away from a null position is resisted by the weight 1031. The weight 1031 also tends to urge the arm member 1022 back towards the null position. The null position can be adjusted using the hydraulic arrangement.

Abstract: A rotating play device capable of training wrist coordination has a main body of a semi-spherical cage frame braided by the bar skeleton with several ring rails of different breadths formed respectively along the looping ring portions on the spherical surface, crossed and connected on the top surface of the cage frame by several radial and longitudinal rails. A holding cover is mounted on the top surface of the cage frame for the user to hold by finger holes formed in the holding cover. When in use, a ball is placed in the cage frame, and the user holds and rotates the main body of the device by controlling the strength of the wrist and the arm to make the ball roll inside the main body via centrifugal.

Abstract: Apparatuses and methods for preventing and/or treating carpal tunnel syndrome are disclosed. One such apparatus comprises a splint (20) for wearing on a portion of an upper extremity of an individual, a warning mechanism (16, 19) carried by the splint and a switch mechanism carried by the splint and electrically coupled to the warning mechanism. The switch mechanism (15) is operable to activate the warning mechanism upon extension or flexion of the hand beyond a predetermined range of motion and thereby alert the user of such undesirable motion of the band.

Abstract: An exercise device for enhancing the mobility of a user who may be suffering from tendinitis of the wrist. The device includes a forearm brace portion that is hingeably connected to a hand brace portion with a spring element connecting the two brace portions together. The spring element can be changed to vary the resistance against which the user works. Straps and loops connect portions of the user's hand and forearm to the device.

Abstract: A portable, multi-faceted exercising and massaging device with adjustable turning resistance, having a stationary handle affixed to one end of the main shaft and a pressure adjusting handle with an orifice and axial screw threading affixed to the other end of the main shaft with a safety nut and two systems for receiving pressure between the inner rims of the bail bearings and handles. Around the main shaft are attached two external tubes with the mentioned ball bearings within the remote ends and joined at the adjacent ends through the central core, which is comprised of a tubular shaft with a central sleeve and connecting ring firmly attached at its middle onto the shaft, of two resistance sleeves and of two pairs of washers.

Abstract: A grip exercise apparatus includes a bar having first and second opposed end portions and an intermediate center portion. A weight is attachable by a flexible weight support or line to the center portion of the bar and is wound and unwound about the center portion of the bar as the first and second end portions are rotated by a user's hands gripping the first and second end portions The weight may comprise a single weight element attached to the weight support or a weight carrier in the form of a closeable container adapted to receive individual weight elements.

Abstract: A stretching and exercise apparatus (10) includes a pair of parallel legs (11a, 11b) having first ends and second ends. The first ends of the legs define arcuate rocker portions (12a, 12b) having straight distal ends (22a, 22b). A top crosspiece (16) is secured transversely across the legs is attached. The apparatus further includes a pair of handgrips (20a, 20b) that extend generally perpendicularly from the legs pointing in the same direction as the straight distal ends. Optionally, a lower crosspiece (18) may be provided across the legs in parallel with the top crosspiece. Preferably, the top crosspiece is pivotally attached to the legs for selective angular adjustment, and the handgrips and the lower crosspiece are slidably attached to the legs for selective longitudinal positioning. The axis of rotation of the rocker portions closely coincides with the pivot axis of a person's hip joint. The apparatus is used to provide support, control, and leverage during various stretching exercises.

Abstract: The apparatus provides active and passive exercise to the hand, wrist and forearm of the patient. It has dual handles and an attached inertia apparatus such that both the affected arm and the non affected arm are subjected to the therapy. It is theorized that in the retraining of nerve, muscle and ligament/tendon function there is cross-training of right-left part of the systems and the healthy system can assist the afflicted part of the system in retraining. The apparatus addresses specifically the range of motion of the wrist, both for flexion-extension and pronation-supination. For pronation-supination, two conical handles, one for each hand is attached through an axis to a gear system connected to a flywheel. The gear/flywheel system allows for clockwise and counterclockwise rotations of the flywheel. The patient puts the system in motion by rotating the handles in either a clockwise or counterclockwise direction. The rotary (oscillating) motion is transferred to the flywheel through the gears.

Abstract: A device for carrying out motional training by continuously flexing and extending a joint of the body comprises a mounting piece for mounting the device in the vicinity of a joint, a drive unit arranged on the mounting piece including a reversable rotation motor having a motor output shaft, a manual switching clutch connected to the motor output shaft, a power transmission connected to the motor output shaft and a transmission output rotating shaft, a swinging arm having a base portion mounted on the mounting piece, and a free end portion of the device including another mounting piece for mounting the free end side of the device to a portion of the shaft body in front of a joint. The swinging arm is coupled to the transmission output rotating shaft and subjected to a reciprocating swing motion during regular and reverse rotation of the transmission output rotating shaft. A movable range setting copying mechanism sets the first swing end and the second swing end of the swing arm.

Abstract: Exercise apparatus comprising an elongate body, a weight supported by a lanyard depending from the elongate body, and first and second stops carried by the elongate body each in substantially abutting relation against one of either side of the lanyard, wherein a user may grasp and rotate the elongate body to raise and lower the weight as the lanyard is wound and unwound about the elongate body with the first and second stops cooperating to force the lanyard to wind and unwind about the elongate body upon itself.

Abstract: An exercise machine for wrist and forearm development includes a rod that is rotatable about its long axis and a cable having one end attached to the rod and the other end attached to a vertically guided weight stack. When the rod is rotated, the cable is wound upon it, against the pull of the resistance. The rod is attached to a stationary frame by a pair of parallel arms, one at each end of the rod. The arms are pivotally attached to the frame on a common axis. The height of the rod is adjusted by fixing the arms in a selected angular position about the common axis. A pulley is attached to the frame for rotation about the common axis. An intermediate portion of the cable passes over the pulley. Thus, adjustment of the height of the rod does not leave any slack in the cable.

Abstract: An exercise device retractable, compact, and portable comprised of a main center piece block assembly, with two aligned handles with adjustable tension control. The center piece block assembly on one of the two surfaces has a multitude of spherical ball rollers to allow rotatability to every desired direction with a minimum friction or resistance. The opposite side of the center piece block provides a mild recessed surface corresponding to foot heel impression to allow stability for the footrest zone during user exercising. The handgrips of the device in this invention offers torsion control of either the same or the opposite direction of rotation during wrist exercise.

Abstract: An exercise device includes a pair of handles with elongated shafts operatively interconnected for rotation along coaxial longitudinal axes. Each shaft has a hand grip at the distal ends to permit a consumer to grip the handle and rotate the handles in opposite directions along their longitudinal axes. Diametric posts project orthogonal from the proximal ends of the shafts and pairs of adjacent posts have an elastic band looped around the posts to resist rotational movement of the shafts.

Abstract: An exercise device is provided having (a) an axle unit convertible into a hammer type exercising device, (b) an adjustable stand (c) a resistance unit attached to the axle unit, and a detachable handle elements. The axle unit is rotatably and releasably attached to the adjustable stand for permitting rotation of the axle unit about a horizontal axis. The resistance unit is attached to the axle unit for biasing the axle unit in a given position. The handle elements are attached to the axle unit for permitting the user to forcibly counter the bias provided by the resistance unit to permit exercise of the upper body. The axle unit is removable from the resistance unit and the adjustable stand, and may be converted into dumb bell or to a hammer, and by utilization of the resistance unit may be converted to a wrist roller.

Abstract: A resistance exercise apparatus is provided which includes structures for receiving a body extremity of a user, the means for receiving a body extremity subject to a force provided by the body extremity, structures for maintaining the means for receiving a body extremity in a predefined plane during movement; and resistance providing devices to impose resistance against the movement of the body extremity. Versions of the apparatus may positioned on a floor, on a wall, or be free standing. Various embodiments of the invention are particularly suited to provide range-of-motion exercises for legs, arms, and hands of the user for both recreational strengthening and physical therapy applications.

Abstract: A portable, articulated, hand-held exercising device comprising a pair of elongated tubular handles pivotally joined to each other by a common connector assembly. Each handle has an axis of rotation substantially normal to the other handle. Each handle has an independently adjustable torque/force characteristic. Thus, each handle may be rotated about its longitudinal axis with adjustable torque adjustment characteristics. The exerciser serves, in general, to condition the wrist, arms, chest, torso and shoulders of the user.

Abstract: A wrist exerciser has a pair of coaxially mounted hand grip bodies. The hand grip bodies can be counter-rotated against a resistance to exercise the muscles in a user's forearms. A friction disk is sandwiched between the two hand grip bodies with a friction surface on one of the bodies bearing against the friction disk. The two hand grip bodies are biased toward each other to clamp the friction disk. The amount of bias force can be varied to set the amount of resistance to the rotation of the hand grip bodies relative to each other. The exerciser includes a spring connected to a member which is slidably mounted in a bore within one of the hand grip bodies. The member is prevented from rotating in the bore. The position of the member can be adjusted by turning an adjustment knob which is threadedly engaged with a threaded rod extending from the member. The bearing is located at one end of the spring. A thrust bearing between the adjustment knob and the hand grip body makes the adjustment knob easy to turn.

Abstract: An adjustable rotating resistance exerciser wherein an adjustment knob functions to supply an axial force to a series of interleaved washers and compressible washers to adjust the rotational restriction of a tubular grip handle, which is disposed on an inner collar that is affixed to a tubular handlebar. The exerciser may be configured such that it is adaptable to a riding bicycle or a stationary exercise bicycle or the exerciser may be affixed to various size tubes or bars such that it may be used in any convenient location. A further embodiment of the present invention may be utilized by incorporating the adjustable rotating resistance exerciser with a tabletop unit which can be used by individuals confined to wheelchairs, hospital beds or nursing homes. Furthermore, the tabletop unit may be modified to accept foot plates so that individuals may use the rotational exerciser to exercise ankle and calf muscles.

Abstract: A portable whole body exercise device utilizes at least one hollow robe and several cords having different tensions for allowing a user to exercise his or her muscles. The exercise device includes elastic cords extending out of open ends of the hollow tube, and another elastic cord connected between the open ends of the tube.

Abstract: An adjustable rotating resistance exerciser wherein an adjustment knob functions to supply an axial force to a series of interleaved washers and compressible washers to adjust the rotational restriction of a tubular grip handle, which is disposed on an inner collar that is affixed to a tubular handlebar. The exerciser may be configured such that it is adaptable to a riding bicycle or a stationary exercise bicycle or the exerciser may be affixed to various size tubes or bars such that it may be used in any convenient location. A further embodiment of the present invention may be utilized by incorporating the adjustable rotating resistance exerciser with a tabletop unit which can be used by individuals confined to wheelchairs, hospital beds or nursing homes. Furthermore, the tabletop unit may be modified to accept foot plates so that individuals may use the rotational exerciser to exercise ankle and calf muscles.

Abstract: A wrist exerciser has a rigid platform to receive a person's wrist, and a fabric support to hold the wrist to the rigid platform. A hinged arm is pivoted to the rigid platform and is fixed to the fabric support at the palm of the hand, so that as the hand is moved in the extension direction, the hinged arm moves. A rod is pivoted to the hinged arm so that, as the hinged arm moves, the rod moves proximally of the person's arm. A spring resists the motion of the rod, so the exercise is against spring tension. A heated or cooled pad can be placed in the arm support to provide therapy during exercise.

Abstract: An improved upper body shaping exercise device which comprises a pair of handles, in which each handle can be grasped by one hand of a person. A structure extends between the handles, for highly resisting when the handles are twisted in opposite directions by the hands of the person, so that the hands, arms and shoulders of the person will be exercised.

Abstract: An exercise bar device comprises a first hollow bar, a second hollow bar, a massage sleeve extending proximally from the second hollow bar, a first foam tube enclosing the first hollow bar, a second foam tube enclosing the second hollow bar, a switch cover covering a distal end of the second hollow bar, a hexagonal rod inserted in the first hollow bar, a brake ring and a friction disk disposed on the hexagonal rod, a nut engaging with an outer thread of a threaded end of the hexagonal rod, a large number of protrusions disposed on an outer periphery of the massage sleeve, an inner sleeve disposed in the massage sleeve and connected to the second hollow bar, a spacing defined between the second hollow bar and the massage sleeve, a motor disposed in the inner sleeve, and a coiled spring and an elastic plate disposed in the spacing. The first hollow bar has an end disk. The end disk couples with the elastic plate. The rod is rotated to increase or decrease the torsion resistance between the hollow bars.

Abstract: An adjustable rotating resistance exerciser wherein an adjustment knob functions to supply an axial force to a series of interleaved washers and compressible washers to adjust the rotational restriction of a tubular grip handle, which is disposed on an inner collar that is affixed to a tubular handlebar. The exerciser may be configured such that it is adaptable to a riding bicycle or a stationary exercise bicycle or the exerciser may be affixed to various size tubes or bars such that it may be used in any convenient location. A further embodiment of the present invention may be utilized by incorporating the adjustable rotating resistance exerciser with a tabletop unit which can be used by individuals confined to wheelchairs, hospital beds or nursing homes. Furthermore, the tabletop unit may be modified to accept foot plates so that individuals may use the rotational exerciser to exercise ankle and calf muscles.

Abstract: A multipurpose exercise device comprises a dumb bell set, a spring, a resilient tube set, a jump rope, and a plurality of pivoting apparatuses. The component parts of the multipurpose exercise device are so assembled that the exercise device can be used interchangeably as an arm building device, a chest building device, or a jump rope.

Abstract: Wrists and forearms exercise apparatus for use with a free weight, or weights, includes a cylindrical bar defining a central location with handles attached to opposed ends of the bar. First and second spaced-apart holes located equidistant from the central location extend completely through the bar immediately adjacent to the ends of the bar, and an open-topped channel is defined within the bar and extends between the holes. A flexible cable is positioned within the channel and normally extends downwardly through the holes. The free weight, or weights, are connected to lower looped ends of the cable so that the weight, or weights, are suspended and centered beneath the bar. Because the weight, or weights, are suspended beneath the bar from two locations equidistant from the central location of the bar, movement of the weight, or weights, from side-to-side is limited as the handles and the bar are rotated during use.

Abstract: A blood vessel exerciser is provided that is formed by a long length of tubular material that is ergonomically curved. The exerciser includes a middle curved surface section, two curved arc sections, and two handles. The two curved arc sections are located on the opposing ends of the middle curved surface section, with two handles so that the two handles are formed symmetrically with respect to the middle curved surface section. A bushing is installed on each of the two handles at the two ends of the blood vessel exerciser, and freely move about the handles, so that the user can grip the blood vessel exerciser and then rotate it positively or negatively.

Abstract: A basketball shot training device is described for improving the shooting skills of the user including an elongated member adapted to be strapped to the user's forearm and a hemispherical finger and hand engagement element configured as a portion of a basketball facing the elongate member so as to be engagable with the user's fingers and hand. A resistance member pivotally mounts the hemispherical engagement element to resist movement from a retracted position to an extended position by flexing the hand, fingers and wrist against the resistance in a manner closely simulating the execution of a basketball shot. As the resistance member is being actuated, the hemispherical engagement element is also partially rotated against a resistive force so as to more accurately simulate a basketball shot.

Abstract: A twist and flex upper body shaping exercise device comprising a pair of handles gripped by the hands of a person. A structure extends between the handles, for generating resistance when the handles are twisted in opposite directions by the hands of the person. This causes the resistance generating structure to be flexed spirally, so that the muscles in the hands, arms and shoulders of the person will be toned up.

Abstract: An exercise apparatus has a first bar with two side bars, each side bar extending generally perpendicular from and attached adjacent to the opposite ends of the first bar. The first bar is rotatably mounted with respect to the side bars. A second bar is connected to said side bars of said first bar by one or more loops of cord. Adjustment devices are used in conjunction with the cord to adjust the distance between the first bar and the second bar. Accessory straps may be used in conjunction with the first bar to perform various exercises.

Abstract: An apparatus for exercising muscles of the fingers, hands, wrists and forearms, includes a shaft having a longitudinal axis, a flexible cord connected to the shaft and a weight member suspended from the flexible cord, so that a user can grasp and rotate the shaft about the longitudinal axis while positioning the shaft substantially horizontally to wrap and unwrap the cord around the shaft and thereby raise and lower the weight member.

Abstract: A multi-effect exercise device to be used to maximize the effects of all manipulations and maneuvers during exercise and to have multiple exercise stimulation effects upon a user during a normal exercise routine, the device including a pair of support rails connected by at least one connector segment whereon a pair of exercise members are secured. Each of the pair of exercise members will include a fore segment and rear segment hingedly secured to one another and pivotally disposed relative to the rear segment such that by gripping a handle grip segment extending from a distal end of the fore segment the fore segment can be pivotally moved towards and away from the rear segment. In order to provide the appropriate exercise effects, movement of the fore segment both towards and away from the rear segment will be resisted, thereby ensuring that work is being done both during a compression and extension stroke of the arm during exercising.

Abstract: An exercise device having a coupling assembly attaching a pair of elongated handles, is provided for reversible rotation thereabout. Each of the handles includes a tubular housing within which a torque adjustment apparatus is disposed. The coupling assembly permits reversible frictional adjustment of the angle formed by the elongated handles to provide exercise of the musculature of the chest and shoulders as the user moves the arms toward or away from each other. The user can adjust the level of resistance to arm movement by adjustment at the coupling assembly. The coupling assembly includes a first spatulate member having a first elongated arm fixed thereto for rotational movement thereabout, a conical member is fixed at a base to the first spatulate member at an angle to the first elongated arm. An integral anti-rotation boss having an integral threaded rod is fixed to the conical member opposite its base.

Abstract: An exercise device which can be used to perform a variety of exercises for strengthening the forearm, elbow, wrist, hand, fingers and thumb. The device is made up of a variety of component parts that can be assembled in various configurations to be used for different exercises. In addition, certain of the parts can be used independently for other exercises.

Abstract: A portable, compact exerciser comprising a semi-rigid torsion member with a pair of gripping surfaces at each end. The end faces of the gripping surfaces are designed to receive detachable handles orthogonally to the longitudinal axis of the torsion member. The torsion member comprising thin walled sections running along the longitudinal axis to offer resistance to any rotational force applied about the longitudinal axis of the torsion member. In one mode of operation, the user can primarily exercise the wrists by rotating the torsion member by rotating the gripping surfaces in a direction relative to each other. In another mode of operation, by moving the detachable handles attached to the gripping surfaces back and forth relative to each other in a plane orthogonal to the longitudinal axis of the torsion member, the user can exercise forearms and other muscle groups.

Abstract: An adjustable rotating resistance exerciser wherein an adjustment knob functions to supply an axial force to a series of interleaved washers and compressible washers to adjust the rotational restriction of a tubular grip handle, which is disposed on an inner collar that is affixed to a tubular handlebar. The exerciser may be configured such that it is adaptable to a riding bicycle or a stationary exercise bicycle or the exerciser may be affixed to various size robes or bars such that it may be used in any convenient location. A further embodiment of the present invention may be utilized by incorporating the adjustable rotating resistance exerciser with a tabletop unit which can be used by individuals confined to wheelchairs, hospital beds or nursing homes. Furthermore, the tabletop unit may be modified to accept foot plates so that individuals may use the rotational exerciser to exercise ankle and calf muscles.

Abstract: A wrist and forearm exercise apparatus includes a forearm support unit for extension of a forearm of a user therethrough, a grip assembly mounted swingably on the forearm support unit for gripping by a hand of the user, and a resistance adjustment device. The forearm support unit includes a tubular body having a peripheral wall with an intermediate portion formed with a stepped groove. The stepped groove includes several L-shaped sections, each of which has an axial portion and a radial portion. A coiled compression spring is accommodated within an adjustment tube which has a front end portion mounted slidably within the tubular body. A radial pin is fixed on the adjustment tube and engages the stepped groove. Movement and rotation of the adjustment tube relative to the tubular body moves the pin in the stepped groove so as to change the compressed extent of the spring, thereby adjusting the resistance to the swinging movement of the grip assembly on the forearm support unit.

Abstract: An exercise device having a coupling assembly attaching a pair of symmetrical, elongated arms mounted at right angles to each other. A pair of elongated handles, each one of which is mounted on one of the elongated arms, is provided for reversible rotation thereabout. Each of the handles has a tubular housing which includes a distal wall and a side wall, the distal wall having a coaxially disposed opening formed therein, the side wall having a pair of opposite longitudinal grooves formed on the inside thereof. Three openings are formed in the side wall.A tubular socket member, adapted for rotation about a coupling assembly conical member includes a plurality of keys mounted longitudinally on its exterior wall, for registration with the tubular housing longitudinal grooves to enable cooperative rotational movement of the socket member.

Abstract: An exerciser includes a support for supporting the arm of a user and a hand grip pivotally coupled to the support. A tube is fixed to the support. Two discs are slidably disposed in the tube. A spring is biased between the discs. A cable connects the hand grip to a disc distal to the hand grip. The hand grip is moved away from the tube against the spring force for training the wrist portion. A bolt is rotatably disposed in the tube and is threadedly engaged with the disc close to the hand grip. The two discs are moved toward or away from each other for adjusting the biasing force of the spring.

Abstract: There is proposed the provision of a grip handle for sport and physical exercise implements which enables a person to maintain a full freedom of manual movement at the time of firmly grasping and holding to the handle grips of the equipment provided for sportive activity and physical exercise. The grip handle incorporates a hoop member positioned in the bend of a bow or similarly shaped element. The hoop is revolvable in the bow shaped element and has a diametrically extending grip rod which is freely movable in the plane of the hoop. Two of the bow shaped elements are connected to known exercise apparatus so that while working on the respective apparatus, it is possible for the wrists to work and move freely.