Abstract: A power rack attachment system and associated method are provided. An example of the power rack attachment system includes a hand crank and a gearbox coupled to the hand crank, the gearbox comprising a plurality of gears connected to a lead screw, wherein the plurality of gears causes the lead screw to rotate in a vertical translation based on a radial motion of the plurality of gears. The power rack attachment system includes a guide housing connected to the gearbox, the guide housing comprising the lead screw, a vertically translating nut, and a guide rod, wherein the lead screw is connected to the vertically translating nut, such that rotation of said lead screw leads to vertical translation of said vertically translating nut. The power rack attachment includes a j-cup connected to the vertically translating nut, wherein the vertical translation of the vertically translating nut causes vertical translation of said j-cup.

Abstract: A suspension training based functional fitness element (11, 31) comprising: an essentially planar element (22) having an upper edge, a lower edge and two side edges, said planar element (22) being designed to form a pivotable connection to a support element (32) along said upper edge of the planar element (22), a first elongated element (23, 32, 52) connected to said planar element (22) at a first connection point at said lower edge of the planar element (22), a second elongated element (23, 32, 52) connected to said planar element (22) at a second connection point at said lower edge of the planar element (22), and a first and second handle (24), said first and second handle (24) being connected to said first and second elongated elements (23) respectively, whereby that said first and second connection points are arranged such that there is a horizontal offset between the first and second connection points and such that there is a vertical offset between the first connection point and the pivotable connection

Abstract: An exercise machine for a total body workout includes a platform, a lower frame mounted over the platform, and an upper frame mounted to the lower frame. The platform includes recoiling shock absorbers such as springs. A lower drive assembly includes a pair of pedals mounted to the lower frame. An upper drive assembly includes a pair of handles mounted to the upper frame. A person for exercise can stand on the pair of peddles while grabbing the pair of handles. Thereafter, the person can rotate the pair of the peddles by legs and the pair handles by hands in the cycling motion.

Abstract: A system, method and apparatus for exercise and rehabilitation includes a frame coupled to a base and having a top end. An arm having a proximal end can be coupled to the top end of the frame. A distal end of the arm is opposite the proximal end. The arm is movable in a first degree of freedom between a retracted position and an extended position relative to the frame. Handles are coupled to the arm adjacent the distal end and movable in a second degree of freedom relative to the arm. The handles are manipulated by a user for exercise and rehabilitation.

Abstract: An exercising equipment having base formed of a U-shape pipe; first and second arms, each rotatably connected to the base and having a securing knob engageable to affix the arm at an acute angle to the base; first paddle rotatably connected at a first connecting point to the first arm; second paddle rotatably connected at a second connecting point to the second arm; foldable connecting bar assembly connected at one end to the first paddle and at the second end to the second paddle, to thereby form an S-shape together with the first and second paddles when assuming an extended position and form a W-shape together with the first and second paddles when assuming a folded position; and, at least one variable friction pivot assembly attached at the first or second connecting points thereby applying variable friction to rotation of at least one of the first or second paddles.

Abstract: A cycling device used for exercise and/or rehabilitation includes a shaft for grasping by a user, a foot assembly coupled to the shaft and configured to be supported on a surface, and a pedal assembly coupled between the shaft and the foot assembly. The cycling device is intended to be used by a seated user.

Abstract: Systems and methods for electronically creating and modifying a fitness plan are disclosed. The method may include receiving electronic user data, collecting electronic fitness data, and displaying a suggestion for a fitness activity based on the electronic user data and the electronic fitness data.

Abstract: The present disclosure discloses an exercise bike capable of folding and changing at multiple angles. The exercise bike includes a base unit, a stand unit pivotally connected to a front end of the base unit, and a first resistance unit and a second resistance unit arranged on the stand unit and suitable for providing resistance for limbs when moving. The stand unit includes a lower riser that rotates in a first angle range relative to the base unit, and an upper riser that rotates in a second angle range relative to the lower riser.

Abstract: A cycling system includes a cycle having a frame with a resistance element attachment point, a resistance element, and a harness. The harness is releasably secured to the resistance element attachment point by the resistance element.

Abstract: A bicycle trainer, including a base, permitting fore and aft movement and a frame, supported by the base. Also, a seat and a handlebar assembly and a pedaling assembly is supported by the frame. The handlebar assembly is rotatably engaged to the frame, and is supported by a tongue, that is hinged to the base so as to permit horizontal rotation, and the handlebar assembly is attached to the tongue at a position removed from the hinge. Turning the handlebars causes the frame to move laterally.

Abstract: The portable hand cycle is a user-stabilized device for upper body exercise. The portable hand cycle is held in place using the weight of a user, holding a platform against the seat of a chair, couch, or other surface. In a sitting position, a riser connected to the seat extends up and away from the user. The riser is optionally of an adjustable length in order to fit users of different sizes. The riser ends with a sleeve that encloses an axle, the center of which is placed at chest-level with respect to the user. The crank is connected to a pair of crank-arms that in turn terminate with grips. To operate, the user extends her arms and holds the grips in her hands. Her rotation of her hands moves the grips, which in turn rotates the crank-arms, finally rotating the axle.

Abstract: A two-way transmission mechanism for fitness equipment includes a first transmission wheel mounted at a crankshaft and connected to a first relay wheel by a first transmission belt, a second transmission wheel connected to a second relay wheel by a second transmission belt, a transmission shaft connecting the first and second relay wheels, a one-way ratchet mounted between the first relay wheel and the transmission shaft for power transmission therebetween in one direction, and a motor having a motor shaft connected with the second transmission wheel.

Abstract: A massage and stretch bench includes: a body with a top plate and a plurality of supports, the top plate including a first positioning hole opening in a vertical direction, and each of the supports being mounted on the bottom surface and provided with an opening; a baseplate inserted along the horizontal direction into the openings of the plurality of supports and having a second positioning hole which is aligned with the first positioning hole and opens in the vertical direction; an upright post inserted along the vertical direction into the first and second positioning holes; and a footrest including a first footrest piece, a second footrest piece and two connecting pieces connected between the first and second footrest pieces so as to define a baseplate-insertion slot which opens in the horizontal direction, and the baseplate is inserted in the baseplate-insertion slot.

Abstract: An exercise machine which is capable of having its lift, roll, or pitch adjusted with respect to a base so as to provide a plurality of positions of the exercise machine with respect to the base. The exercise machine generally includes a base and an exercise machine movably connected to the base. The exercise machine may include a track, a carriage slidably connected to the track, and a biasing member attached to the carriage to apply a resistive force to the carriage. A plurality of actuators may be connected between the base and the exercise machine. The plurality of actuators may be utilized to adjust a pitch angle or a roll angle of the exercise machine with respect to the base. The plurality of actuators may also be utilized to lift or lower the exercise machine at a constant angle of pitch and/or roll inclination.

Abstract: The Recumbent Exercise Bicycle Attachment (REBA) connects to an upright flywheel type exercise bicycle which utilizes one knob friction brake control. The functionality of the existing upright bicycle is maintained by using the REBA's modified interchangeable controls. The pedals that turn the flywheel and the resistance control of the bicycle are accessed from the REBA by utilizing the seat and rear control which are a part of the REBA. The REBA allows the user to ride either in the upright cycling position or the recumbent cycling position on one machine.

Abstract: An exercise machine includes a frame, a seat track of the frame, a seat movably attached to the seat track of the frame, at least one resistance mechanism connected to the frame, a pull cable in communication with the resistance mechanism, a crank assembly in communication with the resistance mechanism, a first swing arm connected to the frame, and a second swing arm connected to the frame.

Abstract: An exercise device includes a main pulley configured to rotate about a hub and having a first surface, a second surface opposite to the first surface, and a peripheral surface. The exercise device also includes a lower pulley coupled to a resistance drum and a belt wrapped partially around the peripheral surface of the main pulley coupling the main pulley to the lower pulley. Brake lining is positioned inside the resistance drum and are configured to be adjusted inwardly and outwardly along interior sidewalls of the resistance drum. In addition, a cable is coupled to the brake lining to control an amount of resistance to a rotation of the resistance drum, and a crank shaft is coupled to a hub of the main pulley and configured to be operated by feet of an individual for rotating the main pulley about the hub against the resistance to exercise the individual.

Abstract: A multifunctional arm cranking exerciser includes an omnidirectional support bracket assembly, which comprises a five-way bracket mounted to a top thereof and having a left side to which a left arm exercising device is mounted and a right side to which a right arm exercising device is mounted. Also mounted on the five-way bracket are a damping adjustment device and a quick release pin device. The quick release pin device allows for quick coupling and positioning of left and right arm cranks of the left and right arm exercising devices at an angular difference of 0 degree or 180 degrees and also allows for quick release and decoupling of the left and right arm exercising devices to be independent of each other. The damping adjustment device adjusts and regulates a level of damping for achieving an effect of efficient exercising.

Abstract: An apparatus permitting a user to perform a simulated bicycling exercise is provided. The design includes a frame having a head tube, wherein the frame maintains a set of pedals, a first upper rear mounting point and a second lower front mounting point configured to maintain the frame, a seat connected to the frame configured to support the user, and a stem connected to a handlebar arrangement, passing through the head tube, and connected to a base by a connection arrangement. The frame is configured to pivot about the first upper rear mounting point and second lower front mounting point in response to leaning by the user causing movement of the connection arrangement and rotation of the stem. The connection arrangement is adjustable to vary amount of rotation of the stem within the head tube in response to leaning by the user.

Abstract: A physical exercise apparatus and method of using the same targets the balanced development of a user's deltoid, pectoralis or upper pectoralis muscles by providing for a user to perform a target, upper body, weight lifting exercise with a resistance load, such as with a barbell, while the user simultaneously performs a distraction exercise of cycling with the legs. The distraction exercise inhibits the muscles of the lower body from assisting the upper body with the target exercise. The apparatus includes a seat or bench for a user to perform the weight lifting and cycling in one of a seated position, a supine position, and a partially supine position. The apparatus also includes a single or multi-level support for holding the resistance load adjacent the seat or bench, and movable foot pedals that are adjustable to a selected location in a two-dimensional plane at which the user performs cycling.

Abstract: An apparatus permitting a user to perform a simulated bicycling exercise is provided. The design includes a base, a frame comprising a head tube, and a lower front pivoting point connected to the base and an upper rear pivoting axial member positioned a fixed distance above the base. The lower front pivoting point and the upper rear pivoting axial member include a multiple component resistive element arrangement and collectively defining an axis of rotation, the axis of rotation forming a fixed angle relative to the base of 30 to 45 degrees, sloping upward in a rearward direction from the front pivoting point to the upper rear pivoting axial member. The design further includes a stem connected to a handlebar arrangement, the stem passing through the head tube and connected to the base by a connection arrangement comprising an arm.

Abstract: An apparatus permitting a user to perform a simulated bicycling exercise is provided. The design includes a frame having a head tube, a first upper rear mounting point and a second lower front mounting point configured to maintain the frame, and a stem connected to a handlebar arrangement, the stem passing through the headset collar and connected to a base by a connection arrangement comprising an arm. The frame is configured to pivot about the first upper rear mounting point and second lower front mounting point in response to leaning by the user, causing rotation of the stem within the head tube by movement of the connection arrangement.

Abstract: A stationary bicycle with a frame. A crankset is rotatably mounted to the frame to receive a pedaling actuation from a user of the stationary bicycle. A seat is mounted to the frame to support the user using the crankset in the pedaling actuation. A handlebar is mounted to the frame to serve as a hand/arm support for the user during the pedaling actuation. Translational joints between the frame and the seat and the handlebar are provided for translational displacement of the seat or handlebar with respect to the crankset. A mechanism is connected to the translational joint for locking the translational joint in a selected position, the mechanism allowing movement of the translational joint solely by a selected actuation displacing the translational joint proportionally in the direction of the translational displacement.

Abstract: A recumbent stepper system has a tubular frame, a left leg assembly, a right leg assembly and a resistance mechanism. The leg assemblies are supported by the frame for pivoting movement about a central pivot axis. The leg assemblies each include an upwardly extending pedal arm terminating in a pedal. A left belt is coupled to the pedal arm of the left leg assembly and engages a left one way clutch and a left pulley. A right belt is coupled to the pedal arm of the right leg assembly and engages a right one way clutch and a right pulley. The resistance mechanism directly engages the left and right one way clutches via a resistance mechanism belt.

Abstract: The present invention relates to a bike saddle structure in which the oscillation angle and height of a bike saddle are adjustable, and to an exercise bicycle comprising same. Vibrations in the bike saddle are minimized and the stability thereof is ensured during the left and right oscillation of the bike saddle, thus enabling a rider to exercise his/her whole body including the legs, pelvis, spine, abdomen, etc. over a long period of time. The forward and backward direction and height of the bike saddle are adjustable by the rider, thus providing a wide range of exercise.

Abstract: A workout device with a foot-oriented elliptical loop is provided and bilaterally equipped with a transmission rod, a first link rod, a driving rod, a second link rod, a swing arm, and a supporting rod. The transmission portions are pivotally coupled to cranks to enable the cranks to undergo revolution. The supporting rods each have a supporting portion to support a user's feet. The aforesaid rods interact with each other. The supporting portions of the supporting rods move along a closed elliptical loop with segmental junctions spaced apart by a relatively short distance, such that the user's treading process is prevented from undergoing abrupt descents, unsmooth transitions, and thus jolts.

Abstract: The invention relates to an apparatus for mounting exercise equipment onto handlebars of a bicycle. A hand grip device is supported by a T-shaped support member and is detachably secured with a mounting device, which is formed as a two-part clamp. The support member has elongated openings, through which the lever ends of the hand grip extend. A ball joint at the end of the support member is engaged in one of the clamp openings, while the second opening in the clamp member allows detachable engagement of the mounting member with the handlebar.

Abstract: The present invention provides a compact, unitary exercise machine which may be rapidly reconfigured such that the user can perform a variety of exercise routines employing essentially the same rotary exercise movement, whether using the legs or the arms, while simultaneously exercising all the muscles of the subject extremity, including antagonistic muscles.

Abstract: An exercise device providing a fore and aft horizontal component of striding motion that is dynamically user-defined, while providing a vertical component of the motion that is maintained on a predetermined vertically reciprocating path in some embodiments. The exercise device guides the user's foot in a pseudo-elliptical stride path, while providing a dynamically variable stride length that allows the user to move with a natural stride length. The exercise device allows tall and short users to extend or curtail the stride length to match their natural stride lengths. The length of the reciprocating path is dynamically adjusted during the exercise operation without equipment adjustments by changes in the length of the stride input by the user at a pair of foot engagement pads disposed on laterally spaced apart foot support members.

Abstract: Various exercise machines have foot supporting linkages that move a person's feet through respective left and right paths of motion in respective planes that are skewed relative to one another.

Abstract: An adjustable elliptical trainer has a base, two driving brackets, two handles, two pedal assemblies and an adjustment assembly. The base has a transmission wheel mounted rotatably thereon. The driving brackets are connected respectively to the transmission wheel. The handles are connected pivotally and respectively to the driving brackets. The pedal assemblies are mounted at opposite sides of the transmission wheels. The adjustment assembly is mounted on the front end of the base and has two guiding rods and a guiding bracket. The guiding rods are mounted on the base. The guiding bracket is connected to the transmission wheel and mounted slidably on the guiding rods. The adjustment assembly allows the pedal assemblies to move along two different elliptical motion paths.

Abstract: The abdominal muscle and cycle workout machine is a workout machine that features a cycling apparatus working in conjunction with an abdominal roller machine. The abdominal muscle and cycle workout machine features a modified workout bench having curved contours that enable an end user to lie in a recumbent position in order to perform cycling exercises while simultaneously conducting exercise that targets abdominal muscles. The machine includes a torsion dial to adjust the tension on the cycling apparatus. The abdominal roller machine includes opposing handlebars that an end user grabs onto in order to perform abdominal crunches while simultaneously performing a cycling exercise.

Abstract: This invention relates to total body exercise equipment. The exercise equipment includes a first crankshaft to which first crank arms having grips and a first sprocket are installed and a second crankshaft to which second crank arms having pedals, a second sprocket and a third sprocket are installed. A driven shaft includes a wheel and a driven sprocket installed thereto. A first driving force transmitting means is engaged with the first sprocket and the second sprocket that the first crankshaft and the second crankshaft are linked. A second driving force transmitting means is engaged with the third sprocket and the driven sprocket that torque of the third crankshaft is transmitted to the driven shaft. The first and the second crankshafts are installed to a frame. The driven shaft is installed to bracket and the frame and the bracket are fixed to a base.

Abstract: The present invention relates to a standup exercise apparatus that simulates walking and jogging with arm exercise. More particularly, the present invention relates to an exercise machine having separately supported pedals for the feet and arm exercise coordinated with the motion of the feet where the pedal stride length is determined by the movements of an operator. Crank arms are positioned on the framework forward the operator at a height comparable to the pedals. Easy starting occurs in the default mode.

Abstract: A pedal correction mechanism used in an elliptical trainer is disclosed to include a pedal link having a coupling portion at the inner side thereof, and a pedal bracket carrying a pedal and having a shaft pivotally inserted into the coupling portion of the pedal link for allowing the pedal bracket to be biased leftwards and rightwards on the axis of the shaft relative to the pedal link to eliminate cumulative tolerances among component parts, preventing derailment and reducing noises.

Abstract: An exercise apparatus links rotation of a crank to generally elliptical motion of a foot supporting member. A foot supporting linkage is movably connected between a rocker and a crank in such a manner that the foot supporting member moves through paths of motion which are fixed, adjustable or variable.

Abstract: An exercise device includes a first treadle assembly supporting a first moving surface and a second treadle assembly supporting a second moving surface. The exercise device further includes an upper body exercise assembly operably associated with the exercise device. The first treadle assembly is pivotally coupled with the frame structure, and the second treadle assembly is pivotally coupled with the frame structure. In another form, an exercise device includes a frame structure, a first treadle assembly having a first endless belt in rotatable engagement with a first roller, a second treadle assembly having a second endless belt in rotatable engagement with a second roller, and a flywheel operably coupled with the first endless belt and the second endless belt.

Abstract: An exercise machine adaptable to perform a cardiac workout and an abdominal workout simultaneously includes a frame structure, a resistance provider, a pair of pedals, a first sprocket, a second sprocket, a sprocket rotating means, an axis, an engaging means, a cable, a seat, an elastic band, a pair of shoulder straps, a monitor and a pulley system. The sprocket rotating means allows the first sprocket to engage and disengage with the exercise bike. The pedaling of the pedals allows the user to perform the cardiac workout. The pair of shoulder straps designed to insert along the shoulders of the user is connected to the cable and creates a tensional force thereon by getting stretched with the pedaling of the pedals. The tensional force pulls the user backward and the user in turn resists the backward movement by manually contracting abdominal muscles to perform the abdominal workout.

Abstract: The present invention relates to an exercise machine for setting exercise in six degrees of motion. In particular, it exercises the shoulder more thoroughly and quickly than previously available.

Abstract: The present invention relates to a standup exercise apparatus that simulates walking and jogging with arm exercise. More particularly, the present invention relates to an exercise machine having separately supported pedals for the feet and arm exercise coordinated with the motion of the feet where the pedal stride length is determined by the movements of an operator. Crank arms are positioned on the framework rearward the operator. Easy starting occurs in the default mode.

Abstract: An exercise device is provided which includes a surface for supporting a body of a user and a frame(s) for supporting the surface(s) above a floor. Resistance device(s) are connected to the device for providing resistance to movement of the user. Device(s) for adjusting the surface(s) relative in distance to the resistance device(s) during an exercise routine. Device(s) may be provided for adjusting the surface(s) relative in distance to the resistance device(s) during an exercise routine and or relative to the floor. Device(s) may be provided for adjusting the surface(s) closer in relative distance to the resistance device(s) while the orientation of the surface changes from vertical thru horizontal and for adjusting the surface(s) further in relative distance to the resistance device(s) while the orientation of the surface changes from horizontal thru vertical during an exercise routine and or relative to the floor.

Abstract: A supine cycling exercise machine includes a frame attached to a horizontal base and a rotation driving assembly supported by the frame. The driving assembly includes a rotatable crankshaft and two crankarms with proximal ends thereof attached to opposite ends of the crankshaft, with two pedals attached to distal ends of the crankarms. One or more crankarm includes a redirection connection mechanism at the proximal end thereof, and such a crankarm is adapted to be repositioned by an exerciser between an opposing and a parallel orientation relative to the other crankarm. The exercise machine can be used for two different cycling exercises, with either a reciprocating motion or a parallel motion of the exerciser's feet.

Abstract: A seated exercise apparatus comprises a frame having a seat attached to the frame. A pair of opposed cranks are rotatably coupled to the frame such that they rotate about a first axis. A medial portion of each of a pair of elongated members is rotatably connected to the frame at a respective pivot joint. A first end of each elongated member has a handle and a second end of each elongated member is rotatably connected to a one end of a respective pedal arm. The pivot joints are located outside of a plane of motion of their respective right and left pedals, such that the apparatus can fit within a more compact form factor, especially in a longitudinal dimension. The pedals move in a reciprocating path having an elliptical shape, in which the major axis is more vertical than horizontal, giving a more up and down, natural, pedal motion.

Abstract: A pedal exerciser includes a base having a coupling tube extending substantially vertically from a bottom of the base. The coupling tube includes a coupling hole and a first notch extending vertically and in communication with the coupling hole. A pedaling device includes a column having a rack. The column is received in the coupling hole of the base. The rack is received in the first notch and has a toothed portion extending outside of the first notch. A height adjusting mechanism includes a motor and a reduction gear box having an output shaft driven by the motor. A transmission gear is mounted on the output shaft and meshes with the toothed portion of the rack. The motor is operable to drive the output shaft to move the rack in a vertical direction via the transmission gear, adjusting a height of the pedaling device in the vertical direction.

Abstract: Equipment and methods for exercise of humans are described. An exercise apparatus typically comprises a frame structure that includes a base member that supports a seat with a backrest that can be reclined. There are forward and rear vertical risers that support transverse members. Hooks may be operatively secured to the vertical risers and the transverse members. Generally there is a rotary drive mechanism that moves a left foot cradle and a right foot cradle. There is typically a right hand grip and a left hand grip that are operatively secured to right and left hand cords respectively, and the cords may be operatively secured to the hooks using pulleys. Typically the right hand cord is operatively secured to a right rotary attachment and the left hand cord is operatively secured to a left rotary attachment. Various methods of providing exercise are described using various configurations of the exercise apparatus.

Abstract: An exercise device combining upper and lower body in synchronized movements to encourage neurological development, rehabilitation, learning and orthopedic rehabilitation in children and adults in every situation where appropriately modified stationary exercise equipment can be placed. The exercise device includes a frame; left and right arm assemblies, each supported by the frame and configured to enable pivoting movement relative to the frame; left and right leg assemblies, each supported by the frame and configured to enable rotational movement about a central pivot axis; a drive mechanism supported by the frame and configured to enable contralateral movement of the left arm assembly relative to the right leg assembly, and of the right arm assembly relative to the left arm assembly; where the left and right arm assemblies are adjustable to enable use of the exercise apparatus in both an upright seating configuration and a recumbent seating configuration.

Abstract: A swing handle arrangement for an exercise equipment having a pair of drive rods driven by the pedal rods such that longitudinal drive gears fixed at the drive rods are cooperated with swing handles having the lateral drive gears for conducting a swing action. In this way, a waist-twisting movement of the upper body can be synchronically achieved when the operator holds the swing handles to take exercise at his feet of the lower body.

Abstract: Rehabilitation exercising equipment includes a main frame, a first geared member rotatably mounted on the main frame, a second geared member rotatably mounted on the main frame, a connecting mechanism mounted between the first geared member and the second geared member so that the first geared member and the second geared member are movable in concert with each other, a first idle geared member rotatably mounted on the main frame and connected with the connecting mechanism, a second idle geared member rotatably mounted on the main frame and connected with the connecting mechanism, and two handlebars secured on the first geared member and the second geared member respectively. Thus, a user's hands can hold the handlebars to pivot the handlebars in two opposite directions by connection of the connecting mechanism so as to achieve an exercising or rehabilitating function.

Abstract: The arm and leg-exercising machine is an apparatus that targets both the upper body and lower body to provide a full body workout. The upper and lower body workouts can be performed separately or simultaneously. The machine includes a generally U-shaped frame fixed to a base. Pedals and lateral handlebars are provided on the frame for respective leg (lower body) and arm (upper body) exercises. A three-drive mechanism including a plurality of pulleys or sprockets is coupled to the pedals and lateral handlebars and joined by bevel gears. A seat is mounted on the frame for strategically positioning an operator to employ the pedals and lateral handlebars.

Abstract: A rehabilitation exercising equipment includes a main frame, a first geared member rotatably mounted on the main frame, a second geared member rotatably mounted on the main frame, a connecting mechanism mounted between the first geared member and the second geared member, a first idle geared member rotatably mounted on the main frame and connected with the connecting mechanism, a second idle geared member rotatably mounted on the main frame and connected with the connecting mechanism, and two handlebars secured on the first geared member and the second geared member respectively. Thus, a user's two hands can hold the handlebars to pivot the handlebars in two opposite directions by connection of the connecting mechanism so as to achieve an exercising or rehabilitating function.