An exercise machine may include a frame, a resistance mechanism supported by the frame, first and second pull cables supported by the frame and linked to the resistance mechanism, a power rack attached to the frame, first and second handles selectively attachable to the first and second pull cable, and first and second pulleys. The power rack includes upright posts configured to have barbell holders adjustably attached thereto such that the barbell holders are configured to be adjusted in various positions between highest positions and lowest positions on the upright posts. The pulleys are configured to selectively receive the pull cables to enable the pull cables to be selectively attached to a barbell to assist or hinder a user in lifting the barbell in a combined cable and free weight workout, the pull cables decoupled from the pulleys for cable workouts.

The invention is embodied in an exercise system that can allow its user to counterbalance the effects associated with a predominantly sedentary lifestyle though a fitness device that comprises a combination of (a) supporting the lower body in a manner that permits a user's upper body to act as a third class lever with the user's hips operating as fulcrum and (b) engaging in resistance exercises with the upper body in a horizontal position, unsupported above the greater trochanter.

A resistance training system includes a tackle providing mechanical advantage, and a user performs strength training exercises by pulling or pushing on the running block while resisting motion of the running block by pulling or pushing on the free end of the runner. The running block, fixed block and free end of the system may be secured at various locations of the body.

A resistance exercise system having, in certain embodiments, a DC power supply system, a DC motor connected to the DC power supply system, a drive section connected to a drive element, a resistance delivery element connected to the drive element, and an extractable exercise resistance delivery section, a predetermined variable resistance section intermediate the DC power supply system and DC motor, an electrical condition sensor, and a variable resistance section control in communication with the electrical condition sensor and the predetermined variable resistance section. In some embodiments, the resistance exercise system includes a computing facility providing the ability to configure the exercise system to provide predetermined static or variable exercise resistance during exercise, and for example, during a positive or negative exercise stroke. Some embodiments allow users to create and, if desired, display varying and complex resistance exercise routines with or without use of resistance weights.

Disclosed herein are robust disposable alternating tangential flow (ATF) housing and diaphragm pump units and associated methods of manufacturing, testing, wetting, and using the same.

Systems and methods for dynamic resistance training are provided that include the use of a dynamic force module. The dynamic force module includes an actuator and controller adapted to control the actuator according to a force profile that specifies the relationship between an operational parameter of the actuator and a measured parameter associated with a user performing an exercise. The dynamic force module is also capable of communicating with a broader network system to facilitate storing and distribution of force profiles and user profile information. The network system further includes features for, among other things, generating and managing force profiles, uploading multimedia content, and tracking user progress.

An exercise machine is disclosed. The exercise machine comprises a pancake motor. The exercise machine comprises a torque controller coupled to the pancake motor. The exercise machine comprises a high resolution encoder coupled to the pancake motor.

An exercise device includes a base defining an inner volume and a top supported by the base, the top defining an aperture. The exercise device further includes a force sensor configured to measure force on the top and a motor disposed within the base and below the top, the motor including a cable extendable through the aperture. The exercise deice further includes a controller communicatively coupled to each of the force sensor and the motor. The controller is adapted to actuate the motor in response to forces applied to the top as measured by the force sensor. The controller may also actuate the motor in response to one or more additional parameters related to the speed or force with which the cable is manipulated (e.g., pulled by a user).

An exercise machine includes a frame which contains a flywheel which rotates around an axle coupled to spools. Original cords are wrapped around the spools and extend to upper pulleys on the frame. The original cords are coupled to adapter cords which extend to lower pulleys on the exercise machine. By pulling the adapter cords, the spools are rotated which causes the flywheel to spin. The adapter cords are released and springs retract the original cords so they can be pulled again. The lower pulleys lower the exit position of the adapter cords so that the exercise machine can be used with hand paddles to simulate swimming, paddle shafts to simulate paddling movements, exercise handles to simulate upper body functional exercises, or ankle straps to simulate lower body functional exercises.

An adjustable reformer for exercising is provided. The reformer includes a frame, a carriage slidably mounted to the horizontal frame, and at least one resistance element connected to the carriage. A cord connects the carriage to at least one lower guide and at least one upper guide. Pulling the cord causes movement of the carriage along the frame against resistance provided by the resistance element. The guides can be height adjustable. The reformer can include a cord retraction system. Related methods of exercise are also provided.