A treadmill contains a body, a support assembly, a resistance unit, and a stop strap. The body includes a holder and a circular running belt. The support assembly includes multiple posts and two columns, wherein each column having a slidable space, and the slidable space having two first chutes. A resistance unit includes two sliding devices, two limitation structures, and a force exerting element. The respective sliding device has a slider and multiple first rollers. The respective limitation structure includes two cylinder units, a resilient unit, a first fixing unit, and a second fixing unit. The force exerting element has two connection rods connected on two ends thereof, and the respective connection rod of the force exerting element is coupled with the coupling portion of the slider of the respective sliding device.

A fluid-damped direct-drive bicycle riding platform includes a rack for supporting, a main shaft, a transmission shaft and a fluid resistor, wherein the rack includes a front bottom foot tube, a rear bottom foot tube, a front support rod, a main beam and an angle adjuster; the front support rod is fixed on the front bottom foot tube, the main beam is fixed on the rear bottom foot tube, the angle adjuster is fixed on the main beam, the upper end of the front support rod is hinged to the angle adjuster through a spline, the main beam is provided with the main shaft and the transmission shaft, the main shaft is press-fitted on the main beam in an interference fit, the main shaft and transmission shaft are driven by a pulley and a belt to drive the liquid resistor fixed to the left end of the transmission shaft.

A fluid-damped direct-drive bicycle riding platform includes a rack for supporting, a main shaft, a transmission shaft and a fluid resistor, wherein the rack includes a front bottom foot tube, a rear bottom foot tube, a front support rod, a main beam and an angle adjuster; the front support rod is fixed on the front bottom foot tube, the main beam is fixed on the rear bottom foot tube, the angle adjuster is fixed on the main beam, the upper end of the front support rod is hinged to the angle adjuster through a spline, the main beam is provided with the main shaft and the transmission shaft, the main shaft is press-fitted on the main beam in an interference fit, the main shaft and transmission shaft are driven by a pulley and a belt to drive the liquid resistor fixed to the left end of the transmission shaft.

An exercise machine inclination device for providing variable exercise intensity on an exercise machine by inclining the exercise machine. The exercise machine inclination device generally includes a base adapted for being positioned upon a floor, a support structure adapted for supporting the exercise machine, a hinge pivotally connecting the base and the support structure and an actuator connected between the base and the support structure, wherein the actuator adjusts an angle of the support structure.

An isometric, dynamic isotonic concentric and dynamic isotonic eccentric motorized guidance exercise apparatus for human muscle development is provided. The exercise apparatus comprises a frame, an electric motor, the electric motor including an output shaft and secured to the frame, a drive guidance assembly, the drive guidance assembly secured to the frame and connected to the output shaft; at least one tactile feedback interface member, the at least one tactile feedback interface member secured to the drive guidance assembly; a weight plate, the weight plate secured to a limb of the human body, the limb positioned at the at least one tactile feedback interface member and wherein energizing the electric motor actuates the drive guidance assembly, the drive guidance assembly induces a motion in the at least one tactile feedback interface member, the limb engages the at least one tactile feedback interface member and the limb actuates the weight plate.

An exercise device for deep squat and body stretch has a device body, a damping assembly, and a pedal set. The device body has a base. The damping assembly is disposed on the base, and has a tube, a pneumatic cylinder which has multiple positioning through holes, and a seat. The pneumatic cylinder is mounted in the tube. An adjusting component is able to extend through the tube and is mounted with one of the positioning through holes. The seat is connected to the pneumatic cylinder for height adjustment. The pedal set is assembled on the device body, and has two pedals rotatably mounted on the device body.

An exercise apparatus with an adjustable rotating element around which a force transferring material wraps either clockwise or counterclockwise to provide bidirectional rotational resistance for exercising. The force transferring material is preferably guided to remain in close proximity to the rotating element while wrapping around the rotating element. Multiple attachments provide great flexibility in performing exercise or physical therapy.

An exercise apparatus with an adjustable rotating element around which a force transferring material wraps either clockwise or counterclockwise to provide bidirectional rotational resistance for exercising. The force transferring material is preferably guided to remain in close proximity to the rotating element while wrapping around the rotating element. Multiple attachments provide great flexibility in performing exercise or physical therapy.

An improved compact exercise machine includes a resistance system with respect to a base for allowing an exerciser to perform a wide range of exercises on a resistance system exercise machine. The compact exercise machine generally includes an exercise machine that has a resistance system with respect to a base. The exercise machine may assume one or more compact configurations to adjust the base of the exercise machine. One or more actuators may be connected to the base of the exercise machine to effectuate the resistance system of the exercise machine with respect to the base.

An exercise fitness machine is configured for vertical lift exercises. Resistance is provided by a fan-flywheel arrangement, with flexible inextensible cables connected to the ends of a horizontal barbell member such that a vertical lift motion rotates the fan-flywheel to create a greater force on the concentric exercise phase, but a reduced force on the return or eccentric phase. This may be configured for shoulder presses, squats, curls, or bench press exercises.