Exemplary arrangements provide leg training devices suitable for high intensity training of hip flexors while simultaneously training the extensors of hip and knee joints. The exemplary leg training devices include foot fixings which are permanent vertically movable components of the device, each of which are configured to releasably engage a foot of a user in operative engagement therewith while limiting the movement of the foot relative to the foot fixings. Each of the foot fixings is operatively connected to a suitable mechanism that provides a resistance force to vertical movement of the foot fixing by the user's leg. In exemplary arrangements the resistance force may be selectively variable with regard to the magnitude and/or point of application so as to provide the desired training regimen.

A full-body exercise system is described. The full-body exercise system includes a frame, and plurality of appendicular members extending from the frame. Each of the plurality of appendicular members is configured for engagement with a respective limb of a user. Further, each of the plurality of appendicular members is movable in a degree of freedom independent of other ones of the plurality of appendicular members. The full-body exercise system also includes a resistive system configured to provide a resistive force on each of the plurality of appendicular members with respect to movement in its respective degree of freedom. The resistive force provided by the resistive system on each of the plurality of appendicular members is adjustable in a generally continuous manner independent of resistive forces on other ones of the plurality of appendicular members.

An exercise network system is disclosed that comprises an electronic data communication link and a plurality of electronic video game workout systems. One or more of the plurality of electronic video game workout systems is configured for communication with at least one other video game workout system another over the electronic data communication link to transmit and receive data used for game play at each of the plurality of electronic video game workout systems. One or more of the electronic video game workout systems is further configured for execution of a full-body workout using a plurality of independently operable appendicular members configured for engagement with respective limbs of a user. Each of the plurality of appendicular members is movable in a degree of freedom independent of other ones of the plurality of appendicular members. Resistance on each of the plurality of appendicular members the is adjustable along and/or about its degree of freedom during game play based on locally generated data and data communicated over the electronic data communication link from other electronic video game workout systems.