An exercise machine includes a shaft configured to rotate about an axis; a spool configured to receive a strap and drive rotation of the shaft about the axis in response to movement of the strap; a flywheel configured to rotate about the axis; one or more conductive coils arranged to generate magnetic fields that induce eddy currents in the flywheel; a clutch configured to engage and disengage transmission of torque between the spool and the flywheel; and a spring arranged around the axis, the spring configured to exert a return torque on the spool about the axis in response to rotation of the shaft.

An exercise machine monitoring and instruction system for the movement of an element of an exercise machine by an exerciser and providing automated feedback to the exerciser to help improve the exercise in real-time. The exercise machine monitoring and instruction system generally includes an exercise machine having a movable element that moves between a first position and a second position in a reciprocating manner, a sensor that detects a real-time position of the movable element, a processor in communication with the sensor to receive the real-time position data from the sensor related to a position of the movable element and a feedback device in communication with the processor that provides real-time instructions to the exerciser on how to adjust their workout to achieve a desired result.

An exercise assembly structured to perform different rowing routines characterized different rowing motions. A resistance device is movable within a chamber and is cooperatively structured therewith to resist such movement. A drive assembly includes two drive sections each independently connected in driving relation to said resistance device. A connector structure includes two connector members each attached to a handle and connected in driving relation to a different one of said drive sections. The handle is selectively movable through the plurality of different rowing motions, at least one of which results in the two drive sections concurrently driving the resistance member and being concurrently driven by the two connector members. At least one other rowing motion of the handle is defined by each drive section alternately driving the resistance member and being alternately driven by interconnected ones of said connector members.

Methods and systems for controlling a force generator of an exercise apparatus are described wherein the method comprises determining or receiving angular positions of a rotatable axle of an exercise apparatus when a force is applied to a force receiving structure of the exercise apparatus, the rotatable axle being part of a mechanical power transmission system connecting the force receiving structure via the rotatable axis to a force generator which is controlled by a computer based on a kinematic model, the kinetic model representing equations of motion of the exercise the apparatus; determining or retrieving first geometrical scaling values associated with the angular positions and incorporating the first geometrical scaling values into the kinematic model to form a first modified kinematic model, the first geometrical scaling values being associated with a non- circular gear of a first predetermined non-circular geometry; and, determining applied force values for the angular positions, each applied force value representing a force that is applied to the force receiving structure; and, controlling the force generator based on first resistive force values to mimic an exercise apparatus comprising a mechanical power transmission system including the first non-circular gear, the first resistive force values being computed using the first modified kinematic model and the applied force values.

A motor resistance control structure for an exercising apparatus comprises a motor, a drawing member, a control unit, and a sensing element. The control unit controls the motor to generate a resistance and outputs a first instruction to allow an output shaft to rotate by a first present revolution along a first sense of rotation. The drawing member receives an applied force and pulls the output shaft to rotate by a training revolution along the first sense of rotation. The sensing element senses the applied force and gets a sensing result. By the comparison of the applied force with the resistance, the control unit controls the output shaft to rotate by a second preset revolution along a second sense of rotation or release the resistance of the motor, which avoids a problem in an ordinary exercising apparatus that a counterweight may fall freely to injure a user.

A collapsible exercise machine includes a stationary base, a moving member, and a supporting frame. The stationary base includes a pivotally connecting portion and a first supporting portion. The moving member is pivotally connected to the pivotally connecting portion of the stationary base, can be pivoted to an extended position and a collapsed position with respect to the stationary base, and includes a second supporting portion. The supporting frame includes a third supporting portion, is fixedly connected to the stationary base, and lies under the pivotally connecting portion. When in the extended position, the stationary base and the moving member are supported by the third supporting portion as well as the first supporting portion and the second supporting portion.

The present invention relates to a rowing seat (1) for rowing and kayaking boats and exercise equipment, comprising a first face (2) adapted to support and carry a user, a second face (3) arranged opposite the first face, a first end (4) and a second end (5), a first side (6) and a second side (7), and a longitudinal axis (8) extending between the first end and the second end, wherein the first face (2) comprises a middle section (9) arranged substantially between the first and second sides (6, 7) and extending from the first end (4) towards the second end (5) with a length of at least 8 cm, the middle section (9) having a substantially convex support face (10) extending along the longitudinal axis, the support face (10) being adapted to support at least 50% of the user's weight during use of the rowing seat. The present invention also relates to a rowing, kayaking or exercise system comprising a rowing seat according to the present invention.

A rower folding structure includes a main frame provided with a stopper at the front and a screw lock seat with a locking bolt at the bottom, and a second frame pivotally connected to the front of the main frame and pivotable relative to the main frame between an unfolded position and a folded position. The second frame is provided with a buckle member at the bottom, which has an opening for the passing of the locking bolt. When the second frame is at the unfolded position, the buckle member abuts the screw lock seat and the locking bolt tightens the buckle member; when the second frame is at the folded position, the second frame abuts the stopper. In this way, the overall volume of the rower during transportation can be reduced.

A rower includes a main frame provided with a slide rail that has a front and an opposing rear end, a seat cushion slidably arranged on the slide rail, and a resistance device installed under the slide rail and adjacent to the rear end of the slide rail. Thereby, by changing the resistance device to be arranged in the rear half of the rower and arranged under the slide rail, the overall volume of the rower can be further reduced.

A hand-held exercise device comprises a frame, a handle attached to the frame, a spool element pivotally mounted to the frame, a pull-cord movable between a wound configuration in which the pull-cord is wound around the spool element and an unwound configuration in which the pull-cord is unwound from the spool element, a resistance element pivotally mounted to the frame, a transmission that couples the pull-cord to the resistance element such that pulling the pull-cord from the device causes the resistance element to rotate, and a damping means that acts to slow the rotation of the resistance element. The device provides a compact and lightweight form of exercise equipment that is easy to carry and easy to store. The device can be used with various fixtures, and also with a second handle fixed to the pull-cord, to allow the user to perform a wide range of exercises. Preferably the exercise device transmits exercise data to an external device that provides feedback and guidance to the user. A resistance mechanism for exercise apparatus allows a pull-cord to be coupled to a resistance element such that pulling the pull-cord from the mechanism causes the resistance element to rotate. A drive element is driven by a frictional force between the drive element and the pull-cord. The resistance element is coupled to the drive element by a transmission.