An exercise machine and a resistance and brake compound control structure are disclosed. The resistance and brake compound control structure includes a sleeve, a push rod, an elastic member, a compound operating member, and a pushing member. The push rod is disposed in the sleeve. The elastic member exerts a force to the push rod for giving the push rod a return elastic force. The compound operating member includes an operating portion and a screw rod. The screw rod has a pushing end extending into the sleeve. The pushing member is disposed in the sleeve in a non-rotatable manner. The pushing member has a threaded hole. The screw rod is screwed to the threaded hole. The exercise machine uses the resistance and brake compound control structure to adjust resistance and brake.

A system and method for controlling an exercise device are provided herein. The system includes a memory having computer-executable instructions and at least one processor to execute the computer-executable instructions to wirelessly connect the exercise device, receive a training mode, receive at least one variable for determining a power set point, determine the power set point responsive to the training mode and the at least one variable and control a magnetic brake assembly in the exercise device responsive to the power set point.

A rotation mechanism of a wrist exerciser is provided. The rotation mechanism includes a sleeve ring, a spinning mass, and a driving assembly. The sleeve ring is rotatable along an annular groove. The sleeve ring includes an annular body and a mount component. The annular body has a first mount portion and a first insertion hole respectively located at two opposite sides of the annular body. The mount component has a second mount portion and a second insertion hole. The second mount portion of the mount component is engaged with the first mount portion. Two shaft portions of the spinning mass are respectively and rotatably located in the first insertion hole and the second insertion hole, allowing the spinning mass to be rotatable. The driving assembly includes a stator fixed to the mount component and a rotor mounted on the spinning mass.

A towing equipment used to train athletes' speed, strength and agility is disclosed to include a training unit, a magnetic resistance unit and a transmission mechanism. By an elastic training belt of the training unit, the towing equipment is connected to the human body. The kinetic energy generated by the human body pulling the elastic training belt is transmitted to the magnetic resistance unit through the transmission mechanism to generate resistance. The magnetic resistance unit includes a magnetic device set and an adjustment device set. The user can adjust the resistance generated by the magnetic device set through the adjustment device set. The magnetic device set includes a resistance wheel set on the frame body and a bearing block set corresponding to the resistance wheel. Use the overlap area of a magnetic field in the resistance wheel and the bearing block to generate magnetic flux.

A rotation structure includes a main body, two bearings mounted in the main body, a mandrel mounted between the two bearings, a rotation member having a first end connected with the mandrel, and a weight mounted on a second end of the rotation member. The rotation member is situated at a center of the mandrel and is perpendicular to the mandrel. The rotation member and the weight have a total length smaller than a radius of the main body. Thus, the weight is rotated in the main body without producing sound so that the main body is operated in a noiseless manner and will not produce noise during movement.

A magnetic resistance structure and an exercise machine having the same are disclosed. The magnetic resistance structure includes a seat body, a turning disc unit, a movable seat, a control unit, and a magnetic field component. The turning disc unit is pivotally connected to the seat body in an axial direction. The turning disc unit has a non-magnetic induction part extending in a radial direction. The control unit is connected with the movable seat for controlling the movable seat to approach or move away from the non-magnetic induction part. The magnetic field component includes a first component and a second component. The first component is located on the seat body. The second component is located on the movable seat. The first component and the second component selectively generate a magnetic field by changing their relative positions.

A cordless treadmill including a frame, a belt system, and a drop-in cartridge is disclosed. The cartridge includes a plurality of staggered rollers configured to provide tactile feedback to the user. The frame is adapted to receive the belt system and the cartridge as they are lowered into the frame, and the frame is adapted to place the belt of the belt system into tension as the belt system is lowered into the frame. An integrated flywheel generator system provides smooth operation of the treadmill and generates electricity to power additional systems.

A folding exercise bike has handlebar telescoping members configured to support handlebars, seat telescoping members configured to support a seat, a lower frame member from which the seat telescoping members and the handlebar telescoping members extend, pedals having an attachment point above the lower frame member, a first pair of legs attached to one end of the lower frame member and a second pair of legs attached to another end of the lower frame member. Each leg of the first pair of legs extending at an oblique angle from the lower frame member in a deployed position configured to support the folding exercise bike on a surface and each leg of the second pair of legs extending from lower frame member at an oblique angle in the deployed position.

Systems, methods, and devices for measuring force applied to a machine, where an exercise machine comprises a frame; a motor assembly; a mounting plate, wherein the mounting plate is attached to the motor assembly; a force transducer. The force transducer is attached to the mounting plate and the frame and is the only point of contact between the frame and the motor assembly. The force transducer is configured to measure force applied to the motor assembly.

Systems, methods, and devices for measuring force applied to a machine, where an exercise machine comprises a frame; a motor assembly; a mounting plate, wherein the mounting plate is attached to the motor assembly; a force transducer. The force transducer is attached to the mounting plate and the frame and is the only point of contact between the frame and the motor assembly. The force transducer is configured to measure force applied to the motor assembly.