Abstract: An exerciser includes a base having a first frame and a second frame which is pivotably connected to the first frame, and a slide device. The first and second frames are arranged to have an angle therebetween. The slide device has a damper and a roller is connected to the slide rod so as to move on the second frame. The users put the base on the floor to use the exerciser as a pull-up exerciser. The users can also overlap the first and second frames and put the first and second frames on the floor to use as an abdominal exerciser. The damper generates different resistance to obtain different exercising levels.

Abstract: A leg stretching device includes a frame having multiple lugs so as to be pivotably connected with first and second pedals. Two first protrusions extend from the first and second pedals respectively. Two side extensions respectively extend from two ends of the frame. A rod is connected to the mediate portion of the frame by an angle adjusting member. Two second protrusions extend from two sides of the rod respectively. Two resilient bands are respectively connected to the two first protrusions and the two second protrusions. The angle adjusting member adjusts the tensions of the two resilient bands. Two extension portions are respectively connected to the two side extensions and each extension portion has a support rod. The first and second pedals each have multiple positioning holes facing the support rod so as to adjust the angle of stretching.

Abstract: A swivel exerciser includes a base frame, left and right handlebars, a plate on the base frame, a curved rail around the plate and fixedly secured onto the base frame, left and right stop members at both ends of the rail, pivotal left and right arms, left and right pedals on ends of the left and right arms respectively and being slidable on the rail, left and right projecting plates each at one side of the left or right arm and having a through hole, and an inverted U-shaped member. In a first exercise mode, the inverted U-shaped member has both ends inserted into the through holes of the pedals for interconnection so that both the left and right pedals may swing clockwise or counterclockwise. In a second exercise mode and after removing the inverted U-shaped member, either pedal may swing clockwise or counterclockwise independently.

Abstract: A swivel exerciser includes a base having two front legs, a rear leg, a head tube in a center of a front portion, and two spaced hand grips on a top end of the head tube. A sector-shaped plate on a top of the base includes two central pivot members. A curved rail is around a curved edge of the sector-shaped plate, with the rail being fixedly secured to the top of the base. Two pivotal arms are rearward splayed out of the pivot members respectively. Two knee plates are disposed on the other ends of the arms, and each includes a wheel disposed on the rail and adapted to move therealong. A projection is disposed at a joining portion of each arm and knee plate and includes a through hole. An inverted U-shaped bridge member is adapted to insert into the through holes to interconnect the projections or not.

Abstract: An exerciser includes a base comprising a rotatable central seat and a fixed support upwardly extending out of the seat; first and second carriage assemblies each comprising two opposite rails each having one end formed as a joint pivotably secured to either side of the seat, a bar across the other ends of the rails, and a foot plate adapted to rotate horizontally with respect to the rails and move along the rails; and first and second damping assembly in the first and second carriage assemblies respectively and each comprising two rollers fixedly secured to the seat between the joints and an intermediate portion of the bar respectively, an elastic belt passing the rollers, and two attachments at both ends of the first elastic belt respectively, the attachments being releasably fastened at either carriage assembly.

Abstract: A swivel exerciser includes a base frame, left and right handlebars, a plate on the base frame, a curved rail around the plate and fixedly secured onto the base frame, left and right stop members at both ends of the rail, pivotal left and right arms, left and right pedals on ends of the left and right arms respectively and being slidable on the rail, left and right projecting plates each at one side of the left or right arm and having a through hole, and an inverted U-shaped member. In a first exercise mode, the inverted U-shaped member has both ends inserted into the through holes of the pedals for interconnection so that both the left and right pedals may swing clockwise or counterclockwise. In a second exercise mode, after removing the inverted U-shaped member either pedal may swing clockwise or counterclockwise independently.

Abstract: A swinging gymnastic machine includes a front swinging assembly, a rear swinging assembly, a handle assembly pivotally secured to the front swinging assembly, and a pedal assembly pivotally secured to the rear swinging assembly. Each of the front and rear swinging assemblies has a spring unit. The front and rear swinging assemblies are durable and are unsusceptible of deflection. The swinging gymnastic machine also has the benefit of reducing the occupied space when it is not in use as both a front leg and the handle assembly are adapted to be folded rearwardly. A person has to exert a great force to overcome the resistance of both the front and rear swinging assemblies through the arms and calves in order to effectively exercise.

Abstract: A leg stretching exercise apparatus includes a base seat, a telescopic handle erectly projecting from the front of the base seat, pulley sets and hinge members set on both sides of the base seat, first and second side frames hinged at each hinge member, pedal plates respectively slideably mounted on the first and second side frames by wheels under the pedal plates. An end of resistance members is hooked on to crooks under the pedal plates, and the other end is mounted around the pulley sets at the side of the base seat then hooked on to the crooks at fixed end of the first and second side frames. Thereby, a user can step both feet on the pedal plates and move the pedal plates outwardly in horizontal direction to obtain good exercising effect by the resistant force generated from the resistance members while exercising.

Abstract: A swinging gymnastic machine includes a front swinging assembly, a rear swinging assembly, a handle assembly pivotally secured to the front swinging assembly, and a pedal assembly pivotally secured to the rear swinging assembly. Each of the front and rear swinging assemblies has a spring unit. The front and rear swinging assemblies are durable and are unsusceptible of deflection. The swinging gymnastic machine also has the benefit of reducing the occupied space when it is not in use as both a front leg and the handle assembly are adapted to be folded rearwardly. A person has to exert a great force to overcome the resistance of both the front and rear swinging assemblies through the arms and calves in order to effectively exercise.

Abstract: An exerciser includes a hollow base having two openings. Each opening includes at least one first circular groove. Two bearing members are received in the two openinigs, and each has a frame with which a plurality of balls are rotatably engaged. Two disks are rotatably mounted on the two bearing members respectively, and each disk includes at least one second circular groove and teeth defined in an underside thereof. The balls are rotatably engaged between the at least one first circular groove and the at least one second circular groove. A driving gear is located in the hollow base and engaged with the teeth of both of the two disks.

Abstract: A portable exercise device includes a body has two shafts respectively longitudinally extending therefrom and co-axially aligning with each other. Two rotors and two torsion springs are respectively pivotally sleeved on the two shafts of the body to make the two rotors reciprocally rotate relative to the two shafts. A wrench device and a stretch device respectively securely receive the two rotors for providing two exercise ways to the user.

Abstract: A twisting exerciser includes a base and a first pivot assembly and a second pivot assembly are respectively connected to the base. A first extension is rotatably connected to the first pivot assembly and a handlebar unit is connected to the first extension. A knee support unit is rotatably connected to the second extension which is rotatably connected to the second pivot assembly. Two support members are connected to the knee support unit.

Abstract: A folding step exerciser includes a base including a front square socket projecting upwardly and including front and rear apertures, a horizontal support extending rearward from the support, and a transverse tube on the support adjacent rear of the socket; left and right handlebars; an upright having a top end adjustably secured to the handlebars; a pivot fixedly secured around a bottom end of the upright, the pivot having a U-shaped cross-section and including a front surface, a cavity on a bottom edge of the front surface, two triangular side surfaces, and a hole at a rear pointed end of either side surface; a bolt adapted to drive through one hole, the tube, and the other hole to pivotably secure the pivot and the socket together by cooperating with a nut, and a fastener adapted to threadably fasten the pivot and the socket together.

Abstract: An exerciser chair has a main frame with a rail, a seat assembly slidably mounted on the rail of the main frame, a stop formed on the rail to limit sliding movement of the seat assembly. A front end of the main frame selectively combines with a bicycling device, footrest device or extending device. The seat assembly has arms for gripping and further has a pivotal backrest to provide a back-extending movement. Thereby, the exerciser chair has various combinations and operational selections in use.

Abstract: A body exerciser includes a main body structure, a gravity mechanism, and a restoring mechanism. Thus, the body exerciser may be used to exercise the user's two hands, thereby achieving an exercising effect. In addition, by operation of the restoring mechanism, each of the two pull cords may be scrolled on each of the reels actually, thereby preventing the two pull cords from becoming loosened.