A resistance adjustment system for adjusting a resisting force to a flywheel of a stationary exercise equipment is provided, including a resistance control circuit, a manual adjustment member, a power unit, a transmission assembly, and a resistance device. The power unit is in electrical connection with the resistance control circuit, wherein, in response to receipt of a resistance adjustment signal from the manual adjustment member, the resistance control circuit generates a driving signal to drive the power unit. The power unit then moves the resistance device via a transmission assembly to cause a change of the resisting force to the flywheel.

A magnetic swimmer restraint device including a magnetic cone assembly, a strap assembly, a bracelet remote assembly, and a pool assembly is disclosed. These assemblies in conjunction with one another provide a user with a portable restraining system for increased resistance swimming. A wearable strap assembly interacts with magnetic cone assembly that can be located on the lateral sides of a pool or in the pool itself. As a user swims past the magnetic cone assembly the wearable strap assembly becomes magnetically attracted to the magnetic cone assembly. The magnetic attraction of the strap assembly worn by the user to the magnetic cone assembly pulls the user towards the magnetic cone assembly. Thereby increasing swimming resistance. The magnet of the magnetic cone assembly may be an electromagnetic system to be turned on and off via a bracelet remote assembly.

An eddy current resistance generating device includes a magnet base, a plurality of magnets, a conductive member and a friction set. The magnet base has two inner walls. The magnets are disposed on the two inner walls of the magnet base, wherein the magnets on the two inner walls are face to each other. The conductive member is located between the magnets on the two inner walls for generating an eddy current resistance while the magnets are moved relative to the conductive member. The friction set is disposed between each of the magnets and the conductive member, wherein the friction set includes at least one friction matrix.

An exercise machine with electromagnetic resistance selection for changing exercise resistance settings by engaging more or fewer resistance biasing members using a electromagnets. An example implementation includes a movable carriage configured to move substantially along the length of one or more rails. A plurality of resistance biasing members are removably attachable between a stationary biasing member bracket affixed to the machine structure and the movable carriage. A controller changes the resistance settings against the movable carriage by electrically attaching or detaching any preferred number of resistance biasing members between the machine structure and movable carriage.

A reciprocating unidirectional electromagnetic resistance device includes a shaft having a flywheel installed to a first end of the shaft, an electromagnetic braking unit, and a first sensing device. A spring return device and a second sensing device are installed at a second end of the shaft, and a pull rope device is installed at the middle of the shaft. The electromagnetic braking unit and the spring return device are integrated into a single module and provided for an operator to perform a reciprocating motion to pull out a pull rope of the pull rope device and drive the shaft, the flywheel and the spring return device synchronously, and the electromagnetic braking unit acts an electromagnetic resistance onto the flywheel, so that the flywheel has the excellent precise resistance of the electromagnetic braking unit. When released, the pull rope can be retracted to achieve the reciprocating motion effect.

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 device includes a shuttle configured to translate along a first and a second cable in response to a separation of the cables by a user. The cables may extend along first and second cable slots that extend through a shuttle housing between first and second sides of the housing. First and second pulleys may be rotatably mounted to the housing and include corresponding first and second engagement surfaces configured to engage respective the first and second cables within the respective first and second cable slots. Separation of the cable ends, proximate to the first side of the housing, relative to the first and second cable slots drives rotation of the pulleys and corresponding translation of the shuttle along the cables, away from the separating cable ends.

Disclosed are various embodiments directed toward applying a magnetic resistance to a human powered vehicle during movement. In various embodiments, magnets are placed within receptacles of magnet holding brackets and are exposed to one or more conducting discs that are configured to spin with the wheels of the human powered vehicle. The magnetic field of the magnets that intersect the conducting discs can generate a force that opposes the movement of the human powered vehicle. In various embodiments, the magnet holding brackets are adjustable based on desired wattage values.

A bicycle trainer including folding legs and a vertically adjustable frame member supporting an axle and cassette where a rider mounts the rear frame, such as dropouts, of a conventional bicycle with the rear wheel removed. The trainer includes a flywheel with a magnetic brake assembly controlled through an open protocol and configured to receive wireless transmitted signals from an app running on a smart phone or other such applications. The flywheel assembly also includes a bracket coupling the magnetic brake with a frame. A strain gauge is mounted on the bracket to detect torque, which is used to calculate a rider's power while using the trainer.

An exercise machine with electromagnetic resistance selection for changing exercise resistance settings by engaging more or fewer resistance biasing members using a electromagnets. An example implementation includes a movable carriage configured to move substantially along the length of one or more rails. A plurality of resistance biasing members are removably attachable between a stationary biasing member bracket affixed to the machine structure and the movable carriage. A controller changes the resistance settings against the movable carriage by electrically attaching or detaching any preferred number of resistance biasing members between the machine structure and movable carriage.