Abstract: The present invention provides a multidirectional exerciser for hand, wrist and forearm comprising a handle having an axial opening through which a bolt extends. A spring means is around one end of the bolt disposed against an adjustment ring. A resistance knob is mounted on the adjustment ring. A pressure plate is mounted at the opposite end of the handle between the handle and the head of the bolt. At least one clutch disc is disposed against the pressure plate. A knob is mounted around the pressure plate and clutch disc, mounted for relative rotational movement with respect to the handle. The wrists and hands are exercised by holding the handle in one hand and the knob/grip member in the other hand, and repetitively twisting the handle and knob/grip member in opposite directions. A detachable grip member is mounted over said knob and the detachable grip member further comprises a gyro ring and a squeeze grip strengthener.

Abstract: A wrist protection device for a bowling game is disclosed, which comprises a wrist mounted plate, an adjusting pin which connects an intermediate plate and includes an apex, a concave portion and a support, an ascending and descending plate which ascends and descends in an interior of the casing attached to an upper surface of the intermediate plate based on an operation of a button and spring, and a moving member which slides along the guide members of the ascending and descending plate.

Abstract: A wrist roller exercise device is provided which has a roller rod having opposite handle end portions and which has a central portion and has a spool carrier has a central balanced cable connection point. A cable is connected to the cable connection point and also connected to an elevated frame member to secure and hold the carrier at a desired elevation above ground surface. A spool is attached on the central portion of said rod member with the rod member and the spool each being rotatable relative to the spool carrier. The spool also has a rope connection thereon. A rope is provided which has a first rope end attached to the rope connection and a second rope end connected to a weight object of desired mass.

Abstract: An apparatus comprises: a first cylindrical handle rotatable about a first cylindrical axis; a second cylindrical handle rotatable about a second cylindrical axis disposed such that the first handle and the second handle form an angle of less than 180 degrees; and a resistance adjuster operable to adjust a rotational resistance of the first handle about the first cylindrical axis and the second handle about the second cylindrical axis.

Abstract: An illuminating wrist exerciser includes upper and lower casing members, a ring, a rotor, a magnetic element, an illumination control circuit board, a plurality of illuminators, and a coil holder. The upper and lower casing members mate each other to form an interior space receiving the rotor therein. The upper casing member forms in a top portion thereof an opening to partially expose the rotor. Opposite ends of the rotor are rotatably coupled to the ring surrounding the rotor. The magnetic element is mounted to the ring. The illumination control circuit board and the coil holder are received in a recess defined in one of the ends of the rotor. The coil holder forms a bore in which the magnetic element is received. The coil holder carries thereon at least one pair of coils. The illuminators are distributively arranged on an outer surface of the rotor and are electrically connected to the illumination control circuit board.

Abstract: A wrist exercise includes a casing composed of upper and lower casing members mating each other to form a hollow sphere, a retention ring fixed between the upper and lower casing members, a rotor rotatably supported inside the casing by the retention ring. Cavities are formed in opposite sides of the rotor and are each divided into chambers by partitions fixed in the cavities. Holes are defined in an outside surface of the rotor and are in communication with the chambers, whereby, in operation of the wrist exerciser, the rotor is rotated and high-speed airflows are caused between the holes and the chambers due to centrifugal forces induced by the rotation of the rotor, which airflows generate sounds, thereby effecting sound generation of the wrist exerciser.

Abstract: An exercise training device having a stick portion, which may simulate the handle of a drumstick, weight means attachable to one end of the stick portion, the weight means biasing the movement of the stick portion, and providing stimulation to muscles used, for strengthening, flexibility, control, agility and endurance.

Abstract: A bicep exercising device has a frame with a housing, and a elbow cradle to hold the elbow in a chosen flexed position. The elbow cradle is adjustably attached to a frame and a rotatable handle grip. This allows for comfortable position of the hand in a palm down position and the elbow in a flexed position between about 179 degrees and 15 degrees. The handle rotates 180 degrees or more, thus allowing for full supination of the forearm. Using a supination motion of the forearm a user can exercise the bicep muscle.

Abstract: The present disclosure provides a therapeutic hand and forearm strengthening device which permits a user to exercise and strengthen specifically isolated hand and forearm muscles, tendons and ligaments in a number of different ways depending on the specific exercise and device configuration chosen by the user. Another object of the present disclosure also provides methods of therapeutically treating a user's hand and forearm using a device according to the present disclosure.

Abstract: A training device 100 for swing development. A pair of telescoping rods 10 and 12 extend from a spring, one from either end. Each rod is connected to a coupling device 24, 26 having a rotating bearing to which are connected a pair of handles 4, 6. The handles 4, 6 extend perpendicularly to the telescoping rods 10, 12 and in opposite directions to one another. Various attachments can be connected to the handles 4, 6 to be rotated therewith; for example, representations of the sporting equipment to be swung such as a golf club 30 or racquet, or attachments to cause resistance to handle rotation or providing a periodic noise to work on swing rhythm.

Abstract: A balance-enhancing and vibration-reducing device is incorporated in a wrist exerciser to enhance force balance and reduce vibration caused in the operation of the wrist exerciser. The device includes a ring mounted in a casing of the wrist exerciser and defining diametrically opposite holes that rotatably receive axles of a rotor of the wrist exerciser. A coupler is mounted to an inner circumference of the ring in position corresponding to at least one of the holes. The coupler includes a tube extending in a radial direction of the ring. The tube forms a central bore to rotatably receive the corresponding axle. A plurality of resilient pawls is formed at a free end of the tube and distributed along a circumference of the free end. A balance-enhancing and vibration-reducing element has a central bore fit over the tube of the coupler by elastically deforming the pawls.

Abstract: A wrist exerciser includes an upper casing member and a lower casing member that are mounted to each other to enclose a rotor therebetween. The upper casing member has a top opening, which exposes a portion of the rotor. The rotor has opposite sides on which two opposite axles are mounted respectively. The axles are rotatably coupled to an outer ring. The outer ring comprises a resiliency device. The side of the rotor that faces the resiliency device is provided with a movable catching mechanism that is releasably, selectively, and operatively coupled to the resiliency device. Thus, when the rotor is initially rotated or is towed to take a linear movement by being put in contact with a fixture surface, the resiliency device builds up compression spring force, which, when the rotor is released, causes the rotor to rotate in a reversed direction and gaining auxiliary starting power and initial rotation speed.

Abstract: An exercise handle is made up of a hand tension grip made of an elastomeric material with multiple finger openings and a connection device. The hand tension grip allows for full extension of fingers placed in its finger openings during closed kinetic chain exercises. The connection device is connected to the hand tension grip so that extension of fingers placed in its finger openings will cause the hand tension grip to stretch between the connection device and the finger openings, and the connection device is positioned so that it will be distant to the hand and proximate to a radius bone of the person using the handle.

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: The exercise device of the present invention includes an elongated rigid bar having a handle disposed at one end and a joint projection disposed at the opposite end. The joint projection is pivotably received by the joint collar of an exercise attachment. In an alternate embodiment, a second joint projection is provided at the opposite end of the exercise device to pivotably receive a second exercise attachment. The pivoting connection between the exercise attachments and the rod mimics normal biomechanical movement to decrease the chance of injury or re-injury to the user. The exercise device is telescopically extendable to selectively change its usable length.

Abstract: A data transmission device is mounted to a wrist exerciser for detecting the rotational speed of a rotor inside the wrist exerciser and generating and transmitting exercising data associated with the rotational speed from the wrist exerciser to an external device. The data transmission device includes a transmitter unit coupled to a casing of the wrist exerciser and having a sensor for detecting the rotational speed of the rotor and issuing a detection signal, and a processing circuit receiving and processing the detection signal to provide an output of the exercising data, including counts of rotation and the rotational speed. A transmission cable has a first end connectable with the output of the processing circuit to receive the exercising data and a second end engageable with a counterpart device of the external device for forwarding the exercising data to the external device.

Abstract: A rotor is rotatably received in a casing to form a wrist exerciser. The rotor includes a spherical body defining a bore in which an inner flange is formed. First and second weight members are received in the bore on opposite sides of the flange. The weight members have inner end portions releasably attached to opposite surfaces of the flange. Through holes are defined in the first and second weight members to receive an axle of which ends project beyond opposite ends of the body to rotatably engage a support ring of the casing.

Abstract: An apparatus (1) for making figures or body exercises in rotation, includes: a lower part (20) having non-skipping elements (22) on an exercise surface (S); a mobile upper part (10) rotating relatively to the lower part (20), and elements (30) for coupling in rotation the respectively upper and lower parts (10, 20). The upper part (10) comprises a gripping piece (100) conformed to receive a part (M) of a user's (U) body.

Abstract: A wrist exercise includes a casing rotatably receiving a rotor therein. The casing defines slots that are aligned in pair. The rotor has axially aligned rotation shafts respectively and rotatably received in holes defined in the casing for rotatably supporting the rotor inside the casing. A drive roller is mounted to one of the rotation shafts. A drive bar is partially and movable received in the casing through the aligned slots to drivingly engage the drive roller whereby by forcibly pulling the drive bar out of the casing, the drive roller is caused to drive an initial rotation of the rotor with a high rotational speed.

Abstract: The invention disclosed herein provides an exercise device and method of use for strengthening the fingers and hands. The device includes a base with a handrest onto which the hand is placed in a palm-up posture with the fingers extending beneath finger pads attached to a handle joined to a rotatable shaft. Resistance to shaft rotation is encountered by the fingers and hands during exercise which allows the user to build strength and endurance. The rigid shaft includes a sprocket to which a chain having a weight load affixed permits the addition of disk shaped weights for greater resistance as the muscles of the fingers and hands become stronger.

Abstract: An exercise device has a frame configured to engage a person's forearm, and a handle that is mounted on the frame for movement about at least two orthogonal axes relative to the frame and/or for movement in at least two orthogonal directions relative to the frame. The handle is preferably biased against movement out of a rest position relative to the frame.

Abstract: Disclosed herein is a wrist support for bowlers which prevents a user from being injured by shock applied to a user's wrist during bowling and which allows the user to accurately throw a bowling ball. The wrist support is designed to steplessly adjust horizontal and/or vertical angles between its hand back part, wrist part, and finger part, and is designed such that a fastening band unit is easily connected to and removed from a main body of the wrist part, and allows a user to feel comfortable when wearing the wrist support. The wrist support according to the present invention is designed such that click sounds are generated from the support when turning an adjusting knob provided at an angle adjusting part, thus allowing a user to confirm whether the angle adjusting part is operated or not, therefore providing reliability and convenience to a user.

Abstract: A cover for a rotary die is centrifugally cast with multiple layers to substantially eliminate stress when the cover is cast in an arcuate shape for use in a die cutting system. A locking mechanism attached to ends of the cover is designed to be convenient to install on and remove from a cutting cylinder.

Abstract: A hand exerciser includes a hollow sphere that has four openings and a cruciform member is supported in the sphere. Two handle disks and two massage disks are rotatably connected to four ends of the cruciform member and respectively engaged with the openings. A rod extends from a center of the cruciform member and a spring is mounted to the rod and a tube is rotatably mounted to the rod and biased by the spring. A weight is connected to a lateral rod extending from the tube. The eccentric force by the weight when the sphere is rotated applies a force to the hands holding the handle disks or the massage disks.

Abstract: The present invention relates to a self-generating wrist ball which includes a ball-shaped housing, a revolution ring, a flywheel and a generating and lighting mini-module. The ball-shaped housing has a plurality of protruding arched pieces to enhance the light-concentrating effect and to increase the stability when the fingers hold the wrist ball. The generating and lighting mini-module includes at least two rotor aggregates within flywheel and at least two stator aggregates corresponding to said rotor aggregates being fixed on the revolution ring. The wrist ball is self-generating in operational state by means of the impulse excitation created at the rotational moment of the wrist ball. In addition, the effect of magnetic field line can be enhanced by means of magnets and magnetic metal plates of the rotor aggregates and the stator aggregates. Furthermore, the same magnetic poles of both magnets are arranged in opposite way to prevent the flywheel from interference in rotation.

Abstract: A passive therapy device useful for bringing back mobility to the wrist, forearm and/or elbow after immobilization. The device provides therapy to restricted tissue in the wrist, forearm and/or elbow while applying passive tension during therapy. The therapy device is able to readily convert from supination therapy to pronation therapy. In addition, the device can be converted for either right hand use or left hand use.

Abstract: The present invention provides a method for rehabilitating a user's hand. The method comprises providing a block, the block having a plurality of sides, wherein at least one of the plurality of sides has at least one indentation thereon and using the hand to rotate the block. Through the use of a method and apparatus in accordance with the present invention, a user will be able to perform therapeutic hand exercises without the complications of existing therapeutic devices. The present invention provides a durable, cost effective, and easy to use device that will increase hand flexibility, strength and endurance. Furthermore, the device offers significant therapy to the distal fingers.

Abstract: A wrist exercise includes a casing rotatably receiving a rotor therein. The casing defines slots that are aligned in pair. The rotor has axially aligned rotation shafts respectively and rotatably received in holes defined in the casing for rotatably supporting the rotor inside the casing. A drive roller is mounted to one of the rotation shafts. A drive bar is partially and movable received in the casing through the aligned slots to drivingly engage the drive roller whereby by forcibly pulling the drive bar out of the casing, the drive roller is caused to drive an initial rotation of the rotor with a high rotational speed.

Abstract: The present invention relates to a self-generating wrist ball which includes a ball-shaped housing, a revolution ring, a flywheel and a generating and lighting mini-module. The ball-shaped housing has a plurality of protruding arched pieces to enhance the light-concentrating effect and to increase the stability when the fingers hold the wrist ball. The generating and lighting mini-module includes at least two rotor aggregates within flywheel and at least two stator aggregates corresponding to said rotor aggregates being fixed on the revolution ring. The wrist ball is self-generating in operational state by means of the impulse excitation created at the rotational moment of the wrist ball. In addition, the effect of magnetic field line can be enhanced by means of magnets and magnetic metal plates of the rotor aggregates and the stator aggregates. Furthermore, the same magnetic poles of both magnets are arranged in opposite way to prevent the flywheel from interference in rotation.

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: An exercise device includes forced pronation or supination movement of the hands and arms in conjunction with the standard range of motion for a specified exercise. The device comprises a conventional frame and a centrally mounted seat. Pivotally attached to the frame is a sub-frame including a pair of levers that pivot in tandem about a first horizontal axis of rotation A1 and movably attached to the distal end of each lever is a double “L” shaped handle that includes a grip that pivots about a second axis of rotation A2. A2 is substantially perpendicular to A1 and the second leg of the double “L” shaped handle is movably attached with a ball and socket connection to a first end of a linkage rod. The second end of the linkage rod is movably attached with a second ball and socket connection to the frame.

Abstract: A grip structure is designed for use in an exercise device and is formed of a main body, a grip rod, and two slide blocks disposed at two ends of the grip rod. The main body is of a ring-shaped construction and is provided with a groove. The main body is fastened with a predetermined portion of the operation rod of the exercise device. The slide blocks are slidably received in the groove of the main body. The grip rod can be adjusted 360 degrees in relation to the main body, thereby enabling a change in direction in which the grip rod is held fast by an exerciser.

Abstract: A precessional gyroscopic exercise device includes a housing containing a tiltable rotor assembly. The housing and the rotor assembly may be coupled together by a tilt assembly that defines a fixed precession axis for the rotor assembly and allows the rotor assembly to be tilted relative to the fixed precession axis. When the rotor is spinning, and the rotor assembly is tilted contact between the spinning axle and the interior surfaces of a circumferential channel in the housing causes the rotor assembly to rotate about the fixed precession axis, producing a gyroscopic precessional torque—this torque, and resultant wobbling of the device, is opposed by the user for the exercise effect. The tilting mechanism may be associated with handles on the outside of the device, allowing the user to selectively control the tilting of the rotor assembly. The handles may be rotatably coupled to the device, permitting operation of the device using a pedaling motion.

Abstract: A wrist exerciser includes a spherical hollow casing having a top opening. A ring is received within the casing and substantially coincident with a great circle of the casing. A rotor is rotatably received in the casing by being rotatably supported by the ring. The rotor has a circumferential groove defined in an outer surface thereof for receiving a rope wound around the rope. By manually pulling to unwind the rope through the top opening, the rotor is rotated in the casing. A number of light emitting diodes (LEDs) are arranged on the outer surface of the rotor in a predetermined fashion. A power supply device is mounted to the rotor and electrically connected to the LEDs via a microprocessor based control circuit for conducting on/off the LEDs in accordance with operation modes performed by the microprocessor. By making use of the persistency of human vision, a limited number of the LEDs may display complicated messages, including the rotational speed of the rotor.

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: A strength-training device for developing the forearms, upper arms, and shoulders muscle groups comprising of two cylindrical gripping handles, with fixed concave surface end caps, that are connected by a cylindrical center joint piece having a concave surface on top, and an underbody cavity at bottom. A latching rod with a T-lock arm is situated in a secure hole of the center joint piece just below the main surface vertex line. An exercise cord with end loops and of adequate tension strength is secured to the latching rod at one end, and to free weight disc(s) at the other end. The use of free weights suspended by the exercise cord whereby the user raises and lowers the weights by rotating the gripping handles of the training device towards the body and away from the body is effective in achieving forearms and shoulders workout. Weight machine cables are attachable to the latching rod in place of the exercise cord.

Abstract: The invention herein of 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; some finger holes are formed on the holding cover for the user to choose for inserting the fingers; while in use, a ball body will be placed in the cage frame, the user will hold and rotate the main body of the device by controlling the strength of the wrist and the arm to make the ball body roll inside the main body via the function of the centrifugal force; through the controlling of the rotatory method and speed of the main body during the playing process, the effect of training the coordination of the wrist and exercising the wrist strength w

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: 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 hand and wrist exerciser having an outer frame comprising left and right outer posts, upper and lower members connected to the left and right outer posts, and intermediate portion, configured such portion at an angle of less than 180 degrees with respect to the upper and lower members forming an arch thereby. The upper member has slots on the lower side thereof and the lower member has slots on the upper side thereof. A pair of gripping posts, slidably connected to the upper and lower members, have bars inserted therethrough which enable the gripping posts to slide toward the outer posts in one direction. Tension springs, located within the upper and lower members, hold each of the gripping posts toward the intermediate portion.

Abstract: A gyroscopic wrist exerciser having a rotor on a shaft having two shaft ends; a guide ring accepting shaft ends in diametrically spaced notches formed within the inner periphery of the rotor, a housing made of a plastic upper shell and a plastic lower shell. The upper shell has an upper stepped joint engagable with a lower stepped joint of a lower shell to form a stepped joint union that forms an internal circumferential groove upon the internal periphery of the housing and an external circumferential groove upon the external equatorial periphery of the housing. The internal circumferential groove receives a guide ring. A rubber annular grip has an inner protrusion that is smaller than the external circumferential groove to allow a clearance. The rubber annular grip protects a stepped joint union located along the internal circumferential groove and the external circumferential groove from external impact. The rubber annular grip protects a user's hand.

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 bowler's dual position wrist and finger control device is disclosed. The device comprises a hand plate and a forearm plate pivotally linked by a double position hinge mechanism. The double position hinge mechanism angularly disposes the hand plate and forearm plate to each other and limits any backward angular movement beyond this limit, thereby restricting the backward movement of a bowler's hand during delivery of a bowling ball. The double position hinge mechanism allows the user to pre-select two such angles of disposition and limitation in the same plane, and to chose between them by positioning a release lever up or down. The invention further discloses the use of finger supports secured to the hand plate to provide additional support for the bowler. In the preferred embodiment the finger supports are laterally pivotable about the hand plate to enable the user to adjust the supports to a comfortable position.

Abstract: A precessional gyroscopic exercise device includes a housing containing a tiltable rotor assembly. The housing and the rotor assembly may be coupled together by a tilt assembly that defines a fixed precession axis for the rotor assembly and allows the rotor assembly to be tilted relative to the fixed precession axis. When the rotor is spinning, and the rotor assembly is tilted contact between the spinning axle and the interior surfaces of a circumferential channel in the housing causes the rotor assembly to rotate about the fixed precession axis, producing a gyroscopic precessional torque—this torque, and resultant wobbling of the device, is opposed by the user for the exercise effect. The tilting mechanism may be associated with handles on the outside of the device, allowing the user to selectively control the tilting of the rotor assembly. The handles may be rotatably coupled to the device, permitting operation of the device using a pedaling motion.

Abstract: An exercise device comprises a flexible belt having first and second ends; first and second ball shaped handles; and a first and second attaching mechanism attaching each of the ball shaped handles to the first and second ends, respectively. Preferably, the attaching mechanism is operative to rotatably and pivotally attach each of ball shaped handles to first and second ends, respectively. Advantageously, with the the preferred attachment mechanism, each of the handles rotates about a first axis substantially parallel to the length of the belt and the first axis pivots about a second axis parallel to the plane of the belt.

Abstract: A wrist ball comprises a lower shell and an upper shell which is joined with the top of the lower shell. The lower shell is provided therein with a bracing ring and a rotary member. The upper shell is provided at the top thereof with a round opening. The rotary member is provided in the periphery thereof with a groove which is in turn provided with a first engaging portion. The round opening of the upper shell is sealed off by a cap which is provided with two through holes for receiving a pull member. The pull member has a rod portion which is provided with a second engaging portion that is engaged with the first engaging portion of the rotary member. The rotary member is actuated by the pull member to rotate.

Abstract: A resistance device (20) useful as a thumb or hand exerciser. The device (20) includes an outer member (32) including an axial through bore (34); an inner member (22) received within the through bore (34) and extending out of both its ends; and a friction member (36), such as an elastomer sleeve, immovably mounted on said inner member (22); said friction member (36) being in operable contact with the through bore (34) to provide resistance to relative axial movement between said inner (22) and outer (32) members. The level of resistance may be adjusted by rotating ends (24, 24′)of the inner member (22) relative to one another such that the friction member (36) is axially compressed. Stops (30, 30′) limit axial travel.

Abstract: An exercise device for the hands, wrists and forearms comprising an externally threaded, vertically oriented inner post member and an outer sleeve member coaxially mounted thereon in a rotatable and telescoping manner, where the outer sleeve supports a number of interchangeable weight disks and the outer sleeve member is raised and lowered relative to the inner post member by rotation of the outer sleeve member. Outer sleeve member is connected to an internally threaded bearing nut containing a plural number of ball bearings, the ball bearings being retained by external threading on said inner post member.

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.