A retractable walking treadmill which may be connected to an adjustable-height desk, in such a way as to be able to be retracted and stowed vertically when not in use.

An exercise device comprises a flywheel, a driving assembly, and a control assembly. The driving assembly drives the flywheel to rotate. The control assembly comprises an angle sensor for measuring the change of angular displacement of the flywheel during a specific period of time. The control assembly calculates the angular velocity or the angular acceleration of the flywheel by the measured angular displacement during the specific period of time. The control assembly determines if the flywheel is to be stopped according to at least a criterion.

A walking training system according to the present invention includes a belt conveyor on which a trainee walks, a frame, a sensor, and a control device. The frame, positioned on both sides of the belt conveyor, allows an assistant to place each of the feet thereon. The sensor measures the presence state of a foot on the frame. The control device determines whether there are three or more feet on the frame based on the measurement result of the sensor and, if it is determined that there are three or more feet, performs abnormal-time control.

An interactive exercise system with apparatus and methods to optimize muscle strength for rehabilitation, to improve or maintain fitness, and to enhance the performance of athletes. The system uses an electronically controlled linear actuator to generate resistance against the muscular force exerted by the user. The system includes sensors configured to detect acceleration, speed, velocity, position, direction of movement, duration, and the force applied by the user. A control system preferably continuously monitors the sensors, and instantaneously adjusts the adaptive actuator. This provides a proportional counterforce to the user force throughout the entire range-of-motion. A display panel allows the user to interact with the system in real-time. The objective of the user is to synchronize the exercise performance with a selected target goal, by correlating the user's movement relative to a position on a display panel.

A walking assistance apparatus includes stimulus applying means for applying a stimulus to a leg part on which a walking assistance apparatus is mounted and state detection means for detecting a supporting leg condition and a lifted leg condition of the leg part on which the walking assistance apparatus is mounted. The stimulus applying means applies a first stimulus to the leg part when the state detection means has detected that the leg part on which the walking assistance apparatus is mounted is in the lifted leg condition, and the stimulus applying means does not apply a stimulus to the leg part or applies a second stimulus that is weaker than the first stimulus when the state detection means has detected that the leg part on which the walking assistance apparatus is mounted is in the supporting leg condition.

An exercise machine having a changeable damping mechanism is provided. A first transmission rope on a first shifting wheel of a first rotating shaft drives a damping device of a damping shaft to generate a relative damping action for training the leg muscular endurance of the user. Through a first changeable damping mechanism, the first transmission rope, which having stretch elasticity on the first shifting wheel is controlled to adjust the rotational speed according to the gear ratio, which may be in cooperation with a second transmission rope, which having stretch elasticity on a second shifting wheel through a second changeable damping mechanism, and is in cooperation with the damping action of a magnetic control wheel or a blower fan of the damping device to extend the range of damping control for different users to train muscular endurance.

A method for adjusting a working state of an electronic device includes setting a reasonable value range of feature data of a user, and acquiring current feature data of the user from the camera device. The current feature data is compared to the reasonable value range of feature data. A working state of the electronic device is changed when the current feature data is out of the reasonable value range of feature data.

A sport combat training machine including a base assembly; a post; a shaft assembly having a spring adaptor; a mounting frame that mounts onto the post; a lower striking assembly having a first motor with a respective first adaptor having a first spring attached to a respective first lower striking arm; an intermediate striking assembly; an upper striking assembly including a second motor, with a second adaptor having a second spring attached to a respective first upper striking arm; and an electrical system having at least one computer configured with software to operate the first and second motors and a pedal for controlling the at least one computer. The intermediate striking assembly includes a body having a target area and at least one sensor. The sport combat training machine further includes a top plate assembly having at least one sensor.

An adjustable resistance system for use with an indoor cycle comprising a magnetic resistance assembly, a friction brake assembly, and a resistance adjustment assembly.

A fitness apparatus for enabling numerous different fitness routines on a single piece of apparatus and having two side assemblies each having upright metal bars of hollow tubular construction each having fastening holes along its length, generally L-shaped junction portions of said upright bars of similar hollow tubular material and having fastening holes therealong, cross members extending between the two side assemblies holding them in spaced apart locations, floor rests on both side assemblies, a first fitness exercise attachment secured to one of the side assemblies, and, a second fitness exercise attachment, different from the first fitness exercise attachment, secured to the other side assemblies.