Abstract: An exercise device, for simulating elliptical motion of stair climbing, comprising a frame having a front support and a rear support, and comprising upper and lower exercise units. The front support and rear support meet at an apex where they form an acute angle. The exercise units each comprise a pair of elliptical guide tracks which each form a closed loop. A pair of actuating levers are each attached onto the guide tracks by a partial sleeve which is capable of travel around said loop. Each exercise unit also comprises a flywheel assembly which each has a pair of flywheels mounted to the rear support. Each flywheel is attached to one of the actuating levers by a connecting lever. The flywheels are shaped and the connecting levers are connected to the flywheels so as to permit elliptical motion of the actuating levers around the guide track.

Abstract: A recumbent cycling apparatus includes a foot support which moves through a substantially elliptical path of motion relative to a frame. A seat is movably mounted on the frame to facilitate adjustment of the seat relative to the foot support.

Abstract: An exercise machine is composed of a base, a driving mechanism, a swinging mechanism, a seat, and a handle. The driving mechanism consists of two cranks, a master member and a slave member. The master member is driven by the cranks to actuate the slave member, thereby causing two rocking arms and two rod bodies of the swinging mechanism to swing cyclically and simultaneously in opposite directions. The exercise machine enables an exerciser to engage in bicycling for building the muscles of the chest, belly and legs of the exerciser.

Abstract: A vertically oriented exercise device for working out arms, legs or both arms and legs simultaneously is provided which includes a stationary base having an adjustable vertical standard attached thereto. A rotatable pedal operated variable tension load wheel is provided near the bottom of the standard, and an adjustable seat is conveniently attached at a central location thereby allowing the user to comfortably sit while also reaching the pedals and hand grips. A pair of movable, adjustable hand grips are provided which are attached through a set of pivoting linkages to the pedals on the load wheel. These linkages allow force applied by the user to the hand grips to directly turn the load wheel. Thus, the legs independently, the arms independently, or both the arms and legs together may be used to operate the load wheel. As a result, without exiting or changing anything on the exerciser, the user may shift the emphasis of force back and forth from the arms to the legs during a given workout.

Abstract: An exercise apparatus includes a frame, a seat for a user, and a feet engageable moving mechanism carried by the frame and including a pair of feet engaging members. The feet engaging members present different foot receiving surfaces to be engaged by the feet of a user for providing different leg movements depending on the position of the user and the user's legs. First foot receiving surfaces support a user in a standing position and move the user's feet in a generally elliptical path of motion simulating a natural foot striding. Second foot receiving surfaces are spaced further away from the seat than the first foot receiving surfaces and have vertical components enabling a seated user to extend his legs forwardly and exert, with the bottom of his feet, forces having substantial horizontal components to the feet engaging members to drive the feet engageable moving mechanism against its internal resistance.

Abstract: An improved full body exercise apparatus generally includes a frame with a front portion and a rear portion, wherein the front and rear portions together define a longitudinal axis. The front and rear portions are coupled for rotatable engagement, and a pair of handle bars is connected to the front portion and adapted to be rotated about a vertical axis which intersects the longitudinal axis at such coupling means. A pair of pedal arms, each of which is connected to respective pivot points together define a transverse axis at a distal end of the rear portion. The transverse axis is so positioned relative to the longitudinal axis and the vertical axis to optimize physical workouts of a user of the apparatus.

Abstract: A dual exercise bike (10) comprising a frame (12) to support a person thereon. A facility (14) is carried on the frame (12), for exercising the arms of the person with a manual rotatable movement. A facility (16) is carried on the frame (12), for exercising the legs of the person with a manual rotatable movement. A structure (18) in the frame (12) is for adjusting resistance of the manual rotatable movement of the first exercising facility (14), when the arms of the person are to be exercised. A structure (20) in the frame (12) is for adjusting resistance of the manual rotatable movement of the second exercising facility (16), when the legs of the person are to be exercised.

Abstract: The present invention provides an exerciser system which includes a seating unit, a housing and a channel guide for selectively positioning the seating unit with respect to the housing. The system further includes a pedal exerciser extending from the housing, wherein the pedal exerciser has an elevated transverse crank pin extending therethrough with arms extending in opposite directions from each end of the crank pin and a first and second adjustable rotating resistance exerciser extending from each end of the arm. A row bar exerciser also extends from the housing and provides another adjustable rotating resistance exerciser device to control the resistance of the back and forth movement of the row bar. The row bar provides a T-handle with either flexible or rigid members extending therefrom with adjustable rotating resistance exercisers on each end. The seating unit is provided in a semi-recumbent position to provide a low-impact exercise workout for the user thereof.

Abstract: An exerciser includes a pair of foot pedals pivotally secured to a base at a pivot axle, and a wheel rotatably secured on the upper portion of the base at a pivot shaft. A cable couples the wheel to the foot pedals for allowing the wheel to be rotated by the foot pedals. A post is pivotally secured to the pivot shaft and includes a handle. A pin may selectively secure the post to the wheel for allowing the post to be rotated in concert with the wheel when the pin secures the post to the wheel. An actuator may apply a resistive force against the foot pedals.

Abstract: An exerciser includes a base having a front pivot shaft and a rear pivot axle. A post has a lower portion rotatably secured to the base and a bevel gear secured to the bottom. Another bevel gear is secured on the pivot shaft and engaged with the bevel gear of the post for allowing the post to be rotated by the bevel gears. A pair of foot supports are supported on the base and each has a front portion pivotally coupled to the pivot shaft for rotating the pivot shaft and to rotate the post via the bevel gears. The rear portions of the foot supports are coupled to the base by cranks.

Abstract: A stationary exercise device includes a pair of poles having an upper end rotatably secured to a base at a pivot rod and a pair of brackets slidably engaged on the poles for allowing the brackets to be moved up and down along the poles and to be rotated about the pivot rod. A pair of foot supports are secured to the brackets and moved in concert with the brackets. A crank is rotatably secured to the base and coupled to the foot supports for rotating the foot supports about the pivot rod and for moving the foot supports up and down along the poles such that the foot supports may be caused to move along an elliptical path. A pair of handles are secured to the brackets for supporting the upper portion of the user.

Abstract: An exercise device comprised of two independent, adjustable crank assemblies, a horizontal base and a centrally displaced pedestal. The first crank assembly is operated by the user's legs and includes two pivotally mounted pedals integrally attached to a crank system. The second crank assembly is operated by the user's arms and includes two pivotally mounted gripping means connected to a second, independent crank system. The resistance of the first and second crank assemblies are individually adjustable, enabling the user to employ varying levels of resistance to both his arms and legs. The centrally displaced pedestal functions as a means of support for the user's torso when the device is in use. The first crank assembly is attached to a generally vertical member, which vertical member is rigidly attached to the base. The second crank assembly is attached to a generally horizontal member, which horizontal member is adjustably mounted to the pedestal.

Abstract: A multi-functional health device comprises a frame support, a pedal assembly connected by wires with a pair of hand pullers, a hand wheel, a crank member, a torsion member and a pair of positioning plates operably disposed on respective positions of the support, which provide whole bodied exercise to a crippled or abled person for their subsidiary medical treatment. A pair of extensions extend parallel from the front side of the lower frame in cooperation with a plurality of belts and enables a wheelchair to be stably fastened therebetween for facilitating a ready access of a crippled person to the device.

Abstract: An exercise device comprising a flywheel with two drive connections from an oscillating input, one drive connection driving the flywheel during one phase of the oscillating input and the other drive connection driving the flywheel in the same direction during the other phase of the oscillating input. The flywheel is thus driven continuously during the two phases of the oscillating input, providing an efficient form of exercise. In addition, the flywheel can be driven conventionally by foot pedals.

Abstract: An exercise apparatus is provided for sit down exercise operated in the recumbent position where foot operated pedals follow an oblong pedal path coordinated with arm exercise. The pedals are guided by extended foot supports as part of a linkage system that is coupled to the arm exercise. Pedal motion and arm exercise can be adjusted during operation of the exercise apparatus to exercise different muscles. An alternate application of the pedal and arm exercise motion is offered as a propulsion mechanism coupled to the drive train of a land or amphibious exercise apparatus.

Abstract: An exercise apparatus is provided that simulates jogging, running and climbing with vigorous arm exercise. Three modes of cycling exercise are provided with the operator in a stand-up position. Stand-up cycling occurs while the feet operate position controlled pedals and the hands grasp a handlebar. Cruise cycling has the operator inclined forward with the lower arms resting on a handlebar and foot straps to encourage leg lifts for additional speed of operation. Push-up arm exercise occurs with the body inclined forward where the arm levers support a significant portion of the body weight.

Abstract: An exercise apparatus which supports a user in a semi-recumbent position and provides an arm pull/arm press assembly and a leg press assembly whereby the arm pull/arm press and leg press assemblies may be used simultaneously or independently of one another. The arm and leg press assemblies are each operable against variable air resistance means, and preferably against independent variable air resistance means such that the amount of resistance to the leg press exercise may be different or varied from that of the arm pull/arm press exercise.

Abstract: A new Two Person Rotating Amusement Apparatus for primarily entertaining children. The inventive device includes a support frame with handle bars attached thereto, a flywheel supported by the frame and driven by a drive sprocket, and large platforms secured to the drive sprocket. The platforms are large enough to support both feet of a person on each platform, and the handle bars are configured such that each person is able to grasp a portion thereof. One person stands on each platform and holds onto the handle bar, and by cooperative effort cause the drive sprocket to rotate, thus rotating the flywheel. The riders will therefore move up and down and in a circular path on the platforms, aided by the inertia of the flywheel.

Abstract: An abdominal and upper body exercise accessory for a lower body exercise apparatus comprising an adjustable arrangement detachably connected between a pair of spaced, substantially parallel arrangements secured to the lower body exercise apparatus. A cylindrical member is secured to the adjustable arrangement centrally thereof and extending upwardly perpendicular thereto. A longitudnal, rotatable member is rotatably secured centrally to the cylindrical member and in a spaced relationship with the adjustable arrangement. A pair of spaced rotatable members are each disposed adjacent opposite ends of the longitudnal, rotatable member grippable by hands of an exerciser to enable exercising abdominal muscles and upper body muscles in conjunction with exercising lower body muscles with the lower body exercise apparatus.

Abstract: A portable exercise device is hand held on the legs just above the knees while pedaling a stationary bicycle or similar pedal type exerciser. The device includes an elongate, straight member having a handle at one end and a leg engaging member at the other end. A user grasps the handle of the device in his or her hand and positions the leg engaging member on his or her leg at a position above the knee. The device and the hand and arm of the user are raised and lowered synchronously with one's knee as one pedals the stationary bicycle.

Abstract: A rehabilitation and cross train exercise method and apparatus necessary to apply the method, utilizing a cycle ergometer while in a natural upright body stance isotonically exercising the lower extremities through a natural range of motion, at slow R.P.M.'s, working against a variable resistance, while simultaneously exercising the upper body musculature isometrically, by employing a multiple handhold apparatus and using a sequence of different handhold positions allowing exertion through a wide range of motion. The cardiovascular, aerobic and anaerobic conditioning and flexibility enhancing benefits that can be derived from this method and apparatus create a foundation upon which general physical and specific athletic performance and rehabilitative progress can be built.

Abstract: A full body reciprocating aerobic exercise machine that forces all of a user's limbs to move during the exercise. Because all the leg and arm levers move in unison, it allows a user to maintain the proper exercise motion even with an injured, incapacitated, or missing limb. The machine simulates uphill running or walking, and eliminates any joint impact to the user. The machine includes a central torso stabilization support, two leg levers, and two arm levers. The torso support and the leg and arm levers are mounted on a machine base. The leg and arm levers are rotatable through a limited but large arc relative to the torso support. The levers are synchronized so that the left leg lever must move with the right arm lever, and the right leg lever must move with the left arm lever, and so that all four levers move simultaneously. Because of this synchronization, the machine utilizes a "cross-crawl" motion that is completely natural to any user. A user's learning time is therefore minimized.

Abstract: A gyrocycle (10) comprising an elongated main body (12). A pair of front wings (14) extend from the main body (12). A pair of rear wings (16) extend from the main body (12). A front axle (18) extends transversely through the main body (12) and through the front wings (14). A rear axle (20) extends transversely through the main body (12) and through the rear wings (16). A pair of front wheels (22) are provided. Each front wheel (22) is mounted in a rotatable manner to one end of the front axle (18), so that the front wheels (22) can rest upon a flat horizontal surface (24). A pair of rear wheels (26) are also provided. Each rear wheels (20) is mounted in a rotatable manner to one end of the rear axle (20), so that the rear wheels (26) can rest upon the flat horizontal surface (24). A chair (28) is mounted onto the main body (12) adjacent the rear wings (16), so that a person (30) can sit in the chair (28).

Abstract: A frame (12) supporting two oscillatably movable members (16R) and (16L) for arms, and two reciprocally movable members (18R) and (18L) for feet. Cables (36) going off in pairs from each of the movable members in opposing directions, redirected by pulleys (34) toward and connected to rotatable members (14). Rotatable members (14) are coaxially connected with a sprocket wheel (42), and are also interconnected by additional cables (31) via pulleys (30) that are held back by springs (40), so as to cause one of a pair of rotatable members (14) to freely ratchet backwards while another one is turning forward. Sprocket wheel (42) is connected with a sprocket chain (44) to a vehicle propelling member (46). Handles (22R) and (22L) are connected with sleeved cables (26) to the topmost parts of movable members (16R) and (16L), and sleeved cables (26) connected at their other ends through a sleeved cable harness (282) to a steering pulley (28), that in turn is solidly connected to vehicle steering member (13).

Abstract: An exercise device which combines an exercise bicycle with a percussion instrument, preferable an electronic percussion pad, to provide amusement to the exerciser while also providing exercise to the upper portion of the body and improving coordination between the movement of the arms and the legs.

Abstract: A cycle that uses both arm and foot motions to drive it. Unlike other designs that connect the hand and foot movements to a single crank mechanism, the instant design uses two sets of gears that are stacked. Four straight toothed racks are positioned between the drive gears. The toothed racks are connected to the hand and foot levers so that as the levers are manipulated, the racks are moved back and forth. This reciprocating motion turns the gears, transferring energy to the main drive gear, which turns the wheels. The drive gears are paired so that one set is always providing power from each operating lever. The operating levers are designed to alternate--i.e., left hand forward left foot back at the same time as the right hand is back and the right foot is forward. Thus, with each stroke, power is transmitted to the wheels.

Abstract: A muscle-powered drive mechanism for vehicles or other equipment with at least one drive component, the drive movement of which is adapted to be transmitted to a drive shaft using a movement transmission system. By means of the mechanism, a user can selectively exercise a variety of muscles in the arms, legs or other parts of the body (e.g., back or abdominal regions), separately or together in many harmonious ways. For example, the system includes a set backrest drive mechanism whose drive movement is generated by a movement of a seat backrest relative to a seat surface independently of the movement of the seat surface. The system also includes a pair a freewheels mounted to a drive shaft. The movement of a mounted crank in either a forward or a rearward direction generations a single directional rotational movement of the shaft by means of one of the freewheels.

Abstract: An exercise machine with two sets of pedals comprising a frame of a rigid configuration positionable upon a recipient surface such as a floor. A raised support in a box-like configuration extends upwardly from the rearward portion of the frame. A seat portion is positioned upon the support for the receipt of a user. A forward set of foot pedals is secured on a first horizontal axis with respect to the frame adjacent to the forward end thereof. The pedals are adapted to be rotated by the feet of a user. A rearward set of hand pedals are secured on a second horizontal axis with respect to the support adjacent to the upper extent thereof for being held and rotated by the hands of a user. A central drive shaft is located intermediate the first axis and second axis parallel with the forward and rearward ends of the frame. Drive means couple the central drive shaft with the hand pedals and the foot pedals.

Abstract: A universal aquatic exercise machine that includes a plurality of exercise devices, for example, a first exercise device rotatably mounted on a base that moves through a rotary path of motion, a second exercise device rotatably connected to the base that moves back and forth in a reciprocating motion and a third exercise device mounted on the base for reciprocating back and forth motion. The aquatic exercise machine includes a pivoting seat that permits the exercise devices to be performed in either a seated or an erect posture. The exercise devices may have fixed area resistance elements or variable area resistance elements. In addition, underwater footwear facilitates submerged leg exercises and activities such as sliding, skating and other activities.

Abstract: A housing containing a hand cranked, flywheel type resistance mechanism is mounted upstanding from a base. The base is formed by a housing supporting pillar member from which a thigh brace depends and a lap rest adjustably and releasably secured to extend horizontally from the pillar member by engagement of selected vertically spaced ribs on the pillar and a pillar receiving slot in the slot. The flywheel type resistance mechanism comprises a friction band in encircling frictional engagement with a flywheel thereby to resist rotation thereof. An adjustable band tensioner is provided to adjust the frictional resistance to rotation. A body belt is releasably attached to the pillar to secure the apparatus to a user's waist.

Abstract: An exercise device consists of a frame having an upright support member, upper and lower pivot levers pivotably mounted on the support member, first and second foot platforms pivotably mounted on the first and second end portions of the lower pivot lever, hand grips mounted on the first and second end portions of the upper pivot lever, and a resistance cylinder connected between the corresponding first end portions of the upper and lower pivot levers. The upright support is vertically adjustable to adjust the vertical height of the upper pivot lever. In use, the operator stands on the foot platforms, grasps the hand grips of the upper pivot lever, and reciprocates the feet and hands in a rocking, or see-saw type motion similar bicycling, rock climbing or stair climbing. The resistance cylinder comprises a hydraulic-type cylinder which provides resistance during reciprocating movement of the upper and lower pivot levers.

Abstract: A multipurpose pedal-type exercise device comprising a frame having a seat thereon, a pedal assembly having an adjustable resistance, and a multiposition adjustment mechanism connecting the pedal assembly to the frame to provide the user the capability of adjusting the position of the pedal assembly to compensate for the variation in the user's position during use of the pedal assembly.

Abstract: An exercise device absorbs work during both to, as well as fro, motion of an exercise handle. In both cases, the work is imparted to a flywheel which drives a braking mechanism capable of resisting the work at any predetermined selected level over a range of choice. A pair of drive racks each provide a linear gear coupled with a pair of pinion gears integral with rotational clutches on a drive shaft. A first of the clutches is configured to engage with the drive shaft when it is driven to rotate in one direction of rotation, while freewheeling in the opposite direction, while the other of the clutches is configured in reverse to the first. As the racks move in a first linear direction, one of the pinion gears drives the shaft, and the flywheel to which it is attached, while the other of a the pinion gears freewheels. When the racks move in the opposite direction, the roles of the pinion gears are reversed.

Abstract: The apparatus converts reciprocating motion of a rowing type exercise into single direction rotational motion of a shaft in a predetermined direction. A reciprocable arm of a rowing type exercise is pivotally mounted to a frame. A shaft, set for rotation in the frame has first and second one way clutches. First and second racks are mounted with respect to the reciprocable arm and engage one or the other of the one way clutches for driving the shaft in a predetermined direction of rotation as the arms are reciprocated. One or the other clutches freewheels against its respective rack when one of the racks is moved in to drive the shaft and thereby retains the driving rack in engagement with its respective one way clutch.

Abstract: An exercise device consists of a frame having an upright support member, upper and lower pivot levers pivotably mounted on the support member, first and second foot platforms pivotably mounted on the first and second end portions of the lower pivot lever, hand grips mounted on the first and second end portions of the upper pivot lever, and a resistance cylinder connected between the corresponding first end portions of the upper and lower pivot levers. The upright support is vertically adjustable to adjust the vertical height of the upper pivot lever. In use, the operator stands on the foot platforms, grasps the hand grips of the upper pivot lever, and reciprocates the feet and hands in a rocking, or see-saw type motion similar bicycling, rock climbing or stair climbing. The resistance cylinder comprises a hydraulic-type cylinder which provides resistance during reciprocating movement of the upper and lower pivot levers.

Abstract: A front wheel drive bicycle exercise device including a front wheel and a reciprocating handlebar assembly attached to a frame. A clutch and a mechanical advantage device are utilized to drive the front wheel of the bicycle in response to the reciprocative displacement of the handlebar assembly.

Abstract: A physical therapy apparatus capable of being used with any suitable seating surface includes a tubular frame, a seat coupling device and a means for simultaneously workout the upper and lower body. The seat interfits with the frame and has a flange portion for frictionally engaging the seating surface. The means to workout the upper and lower body is mounted on the frame and includes foot pedals and hand grips interconnected by flexible elongated members for transmitting to the hand grips the dynamic forces applied to the foot pedals and visa versa. In an alternate embodiment, the physical therapy apparatus additionally includes a flywheel rotatable by a crank mechanism driven by the foot pedals disposed thereon.

Abstract: An exercise apparatus is provided which includes a chair, an arm-exercising station, and a leg-exercising station. The arm-exercising station is mounted in the armrests of the chair and includes a support frame attached to the base portion of the chair, a pair of elongated left and right exercise bars disposed within the left and right armrest portions of the chair operable for selective pivotal movement within the armrest portions, and a resistance device attached to the bars for resisting the pivotal movement of the bars. The leg-exercising station is mounted within the footrest portion of the chair and includes an elongated support bar including a hollow outer pole and an inner pole received in the outer pole for upward telescoping movement, and a pedal assembly attached to the support bar and configured for rotational movement thereabout.

Abstract: A rotatable exercise apparatus for rotating a user in such a manner that the user's center of gravity is offset with respect to the user's center of rotation, while simultaneously exercising the user's arms, legs, stomach, back, side and neck. The rotatable exercise apparatus generally comprises a rotatable frame having an outwardly facing user support for offsetting the user's center of gravity from the user's center of rotation, a frame support structure, and a means for rotating the frame. The rotatable exercise apparatus provides a strenuous, low impact, complete physical work out which simulates the exercise and exertion which may be experienced by the human body, while participating in sailing-type activities.

Abstract: A handle assembly includes two aligned handle units which are disposed on two sides of the base frame of an exerciser. Each of said handle units includes a lower handle section mounted pivotally on the base frame, and an upper handle section having a lower end connected pivotally to the upper end of said lower handle section by a horizontal pivot pin. Accordingly, when the handle units are operated by the hands of a user, the lower handle sections can rotate relative to the base frame. At the same time, the upper handle sections can rotate relative to the lower handle units. Accordingly, the arms of the user can be exercised in such a manner that the hands can be moved to be in front or back of the elbows, or to be above or below the same in order to operate the handle units during exercise.

Abstract: An exercise device for mounting on a conventional bicycle provides upper body exercise, the device having an auxiliary handlebar that rotates about a shaft on which is mounted a auxiliary power unit. Movement of the auxiliary handlebar in a rotational motion against resistive force provides exercise to the upper body of the user. The movement of the auxiliary handlebar by the user additionally provides auxiliary force by which the front wheel of the conventional bicycle can be driven in conjunction with or independently of the rear wheel drive mechanism.

Abstract: Improved cycling apparatus is provided wherein the improvement comprises at least one elastic band, one end of which is affixed to the cycling apparatus at a desired location, the other end of the elastic band providing resistive force against exertion upon the band by one extremity of a user of the cycling apparatus. In a preferred embodiment, the cycling apparatus includes two elastic bands, one end of each elastic band being affixed to the frame of the apparatus, the other end of each elastic band having handle grips affixed thereto for gripping by the hands of the user. The bands provide resistive force against exertion upon these bands by the arms and hands of the user of the apparatus, thereby providing simultaneous, vigorous exercise for the arms, hands and upper body, as well as for the legs and lower body.

Abstract: The transmission system of an exercise bicycle includes a first drive shaft mounted rotatably on the rear end portion of a frame and provided with foot pedal cranks on two ends thereof, second and third drive shafts mounted rotatably on the frame, a one-way clutch secured on the second drive shaft, a first sprocket mounted securely on the first drive shaft, second and third sprockets mounted securely on the second drive shaft, a fourth sprocket mounted securely on the third drive shaft, a fifth sprocket mounted securely on an axle of a resistance wheel that is mounted rotatably on a front end portion of the frame, a first drive chain trained between the first sprocket and the one-way clutch, a second drive chain trained between the second and fifth sprockets, and a third drive chain trained between the third and fourth sprockets.

Abstract: Apparatus is designed to exercise the arms and legs in which the user stands upright on foot levers which are supported by a downward pull or a push exerted on hand levers to which the foot levers are independently connected so that the arms and legs move in opposition to each other in substantially upward and downward directions enabling a variety of pullup, pushup, and stepping or climbing exercises to be performed without the need for either weights, friction, or damping devices, and which apparatus can be constructed simply and inexpensively using off the shelf hardware components.

Abstract: A recumbent exercise device which provides lower body, upper body and cardiovascular conditioning. The device includes a frame having a seat supported toward the rear thereof. A pair of leg assemblies and a pair of arm assemblies are pivotally supported by the frame for movement about a transverse pivot axis. The arm and leg assemblies are positioned generally toward the forward end of the frame and each includes an upward and forward extending lever with the leg assemblies terminating in pedals and the arm assemblies terminating in handles. The arm and leg assemblies are connected to each other for contralateral movement. A resistance mechanism is coupled to the arm and leg assemblies to provide resistance to their movement the pivot axis. An open area is defined above the frame between the seat and the arm and leg assemblies to permit step-through access to the seat regardless of the arm and leg assembly positions.

Abstract: Drive for muscle-powered vehicles and/or equipment, in particular bicycles, whereby hand-powered drive is accomplished by reciprocating rods whereas foot-powered drive is accomplished by pedals which are moved back and forth and their movement is transmitted to a cable or chain pull and, from the latter, via a freewheel system to the drive shaft, whereby steering is realized via the drive elements which are moved back and forth characterized by a) a seat drive comprising a seat (3) which may be moved back and forth on a track (3.12) extending in longitudinal direction of the bicycle, b) a seat backrest drive, in which the rocking motion of the backrest (3.1) is transformed, by means of a gear (3.4, 3.5, 3.6, 3.9), into a linear back and forth movement and which is superimposed by the drive motion resulting from the seat movement, c) a shoulder drive with a back rest (3.13) which may be swiveled around a shaft (3.

Abstract: An exercise apparatus is disclosed which utilizes a crank shaft having two substantially U-shaped throw members. The orientation of each throw member is adjustable with respect to the other throw member, therefore allowing the crank shaft to assume two different configurations. The first setting results when one of the U-shaped throw members is secured in a position one hundred and eighty degrees offset with respect to the other gripping member. This configuration enables a motion similar to that of pedaling a bicycle as the user's arms (or legs) flex at different times. The second setting is obtained when both throw members are secured with their U-shapes facing the same direction. When so configured, the user's arms (or legs) flex simultaneously as both arms (or legs) push and pull at the same time. Each throw member is separable from each other and optionally includes weights positioned along its length.

Abstract: An arm lever for an exercise bicycle has a pivot portion to be mounted pivotally on a front end portion of a bicycle frame and a bottom end to be connected to an end of a crank arm. The bottom end of the arm lever is provided with a locking plate which has a forked extension with a distal bottom end, an upright slit that opens from the distal bottom end, and a plurality of spaced locking holes that extend through the slit. The slit permits the extension of the end of the crank arm therein. The forked extension is connected to the crank arm at a selected one of the locking holes to vary the distance of the end of the crank arm from the pivot portion and vary correspondingly the range of pivoting movement of the arm lever to suit the user's physique.

Abstract: The present device discloses a complete body passive exercise machine. A motor drives a crank shaft which rotates two foot plates about a given point. These foot plates are attached to limited slide joint assemblies which cause the foot plates to flex forwardly and rearwardly while they are being moved in a circle thereby exercising the legs and ankles. The crankshaft is also operatively attached to arm levers which are held onto by the user. The arm levers work such that the one of the user's arms is fully extended while the other is close to the user's body thereby working the arms as well as pivoting the torso.

Abstract: The invention is a vertically-disposed exercise machine that is designed to accommodate a user who is in a standing position. The machine includes a lower crankset having pedals adapted to receive a user's feet. The machine has an height adjustable upper crankset that is independent from the lower crankset and includes outwardly-extending handles that are designed to be grasped by the user. Each crankset is operatively connected to its own flywheel by a chain or belt. Each flywheel has its own manually adjustable resistance mechanism that allows the user to independently adjust the resistance to rotation of each crankset. When operating the machine, a user can selectively cause the rotation of the upper and/or lower cranksets by appropriate movement of his hands and/or feet.