An exercise device for compression exercises is adjustable in height and in compression force. The device includes a central housing and a plurality of plungers extending from a top side. A support member is attached to the housing on a bottom side. The support member is movable longitudinally relative to the housing and plungers from a fully retracted position to a fully extended position and is lockable in a plurality of intermediate longitudinal positions to vary the height of the device. Each plunger is operatively associated with an internal bias member that biases the plunger away from the housing. Resistance force on a plunger is adjustable via changing tension of the associated bias member with an adjustment knob to finely adjust tension. An installed bias member is removable and replaceable with a different bias member to coarsely adjust tension.

An exerciser has a frame, a driving assembly, a damping assembly, and a linkage assembly. The frame has a base and a rear supporting rod. The driving assembly is mounted on the frame and has two swinging rods, two sprockets, two chains, and two resilient members. The swinging rods are connected to the rear supporting rod. The two sprockets are mounted rotatably on the rear supporting rod. The two chains are respectively engaged with the two sprockets. The two resilient members are connected respectively to the chains. The damping assembly is mounted on the rear supporting rod and is connected to the driving assembly to provide a damping effect to the two sprockets. The linkage assembly is connected between the base of the frame and the two swinging rods to allow the two swinging rod to respectively swing in reverse directions.

In one aspect of the disclosure, a motorized Pilates reformer system may include a frame, a carriage configured to slide along the frame, springs attached to the carriage, attachment mechanisms attached to the frame, spring motors attached to the frame, a footbar rotatably attached to the frame, and a footbar motor attached to the frame. The spring motors may be configured to cause the attachment mechanisms to each alternate between attaching one of the springs to the frame and detaching the spring from the frame. The footbar motor may be configured to rotate the footbar with respect to the frame between multiple footbar positions.

A trampoline includes a bounce fabric, a plurality of fabric clamps and a fixed frame. The bounce fabric is connected to the fabric clamps, and one end of the fabric clamp is connected to one end of a spring. The fixed frame includes connectors and frame grooved pipes. The surface of the frame grooved pipe is provided with a grooved-pipe horizontal channel, and the other end of the spring is connected to the grooved-pipe horizontal channel on the surface of the frame grooved pipe. The connector is provided with a grooved-pipe connecting end and a support-pipe connecting end. The inner side of the grooved-pipe connecting end is provided with a through hole, and the surface of the grooved-pipe connecting end is provided with a groove. One end of the frame grooved pipe is arranged in the through hole. The groove is arranged in the grooved-pipe horizontal channel.

An isometric force resistant exercise tool has a left handle form interfaced to a right handle form over an axle shaft locked to the right handle form, the axle shaft supporting a pressure plate, a compress able spring or set of springs, and a compression adjustment handle threaded onto the axle shaft and abutting the compress able spring or spring set, the pressure plate adjacent in assembly to a friction-resistive material fixed on the left handle form, the left handle form including a piston form interfacing with a ring housing on the right handle form, the piston form adjacent in assembly to a friction-resistive material fixed on the right handle form. Gripping the handle forms and rotating the against force resistance exercises one or more muscle groups.

An exercise machine with a slidable carriage and accessories providing for a plurality of exerciser positioning surfaces and gripping handles. The exercise machine generally includes one or more lifting handles for raising or lowering either end of the exercise machine with respect to a ground surface. The exercise machine may also include a plurality of wheels each including a ridge adapted to engage with a corresponding groove in a track of the exercise machine. The exercise machine may also include a handle including a pair of arms which are positioned at a distance just greater than a width of the carriage.

An exercise machine adjustable resistance system and method for efficiently varying the workout resistance for an exercise machine. The exercise machine generally includes a carriage movably positioned with respect to the at least one rail, a plurality of springs selectively connectable to the carriage to provide a resistance level to the carriage, a plurality of electrically actuated mechanical devices adapted to latch a corresponding one of the plurality of springs to the carriage when in the latch state and unlatch a corresponding one of the plurality of springs to the carriage when in the unlatch state and a control unit in communication with the plurality of electrically actuated mechanical devices to selectively control the state of each of the plurality of electrically actuated mechanical devices to be within the latch state or the unlatch state.

An exercise machine resistance adjustment system for providing an exerciser the ability to immediately adjust the resistance force by changing their body position on the movable carriage or end platforms. The exercise machine resistance adjustment system generally includes a frame, a carriage movably positioned on the frame, a spring connected to the carriage to apply a biasing force to the carriage, one or more left projections within the carriage adapted for a left hand of an exerciser to grasp, and one or more right projections within the carriage adapted for a right hand of an exerciser to grasp. The exerciser is able to efficiently adjust the amount of resistance force applied to the carriage by repositioning their hands (or feet) from a first set of projections at a first distance to a second set of projections at a second distance from the first end of the exercise machine.

A direct-drive bicycle training system and methods of using the same are provided. The system includes a bicycle trainer that rests on a support surface and supports a bicycle frame in an upright manner with respect to the support surface. The bicycle trainer includes a stator, a rotor that rotates with respect to the stator, a cassette affixed to the rotor, a support frame supporting the stator, rotor, and cassette, and a resistance applying mechanism that operatively couples to a portion of a drivetrain of the bicycle frame and applies varying levels of resistance to the portion of the drivetrain. The support frame moves with respect to the support surface in response to a force applied to the drivetrain of the bicycle frame during use of the bicycle training system, generating a more natural movement of the bicycle and simulating on-road use.

A hand training device and corresponding method are used for sensing and measuring a capacitance corresponding to the pressure or force applied by the hand or fingers of the user. This hand training apparatus has slots for the index finger, the middle finger, the ring finger, and the pinky finger. The data obtained from the device can be utilized to create a 3-D model to indicate grip strength exerted by the hand or pinch strength.