A training device includes a first leg, a second leg, and a top board connectable to the first leg and the second leg. The top board has a first position transverse to a path of travel between the first leg and the second leg providing a releaseable obstruction along the path of travel. The top board further includes a breakaway joint operable to release at least a portion of the top board to a second position on an impact to the top board thereby providing an open passageway through the top board along the path of travel.

This invention is directed toward a portable and easy to set up retractable cord system with means to allow athletes to move along specified routes and to form space indicators that show zone areas.

A virtual environment can use an absolute orientation framework. An absolute orientation framework in a virtual environment can be activated using an omnidirectional locomotion platform. An absolute orientation framework enables a user's avatar to move independently from the current viewpoint or camera position. The user's avatar can move in an absolute manner relative to a virtual environment map.

A virtual environment can use an absolute orientation framework. An absolute orientation framework in a virtual environment can be activated using an omnidirectional locomotion platform. An absolute orientation framework enables a user's avatar to move independently from the current viewpoint or camera position. The user's avatar can move in an absolute manner relative to a virtual environment map.

This invention is directed toward a portable and easy to set up retractable cord system with means to allow athletes to move along specified routes and to form space indicators that show zone areas.

A locomotion system for use with a virtual environment technology includes a platform configured to support a user, a harness support assembly coupled to the platform and extending upwardly from the platform, and a safety harness configured to be worn by the user. The harness support assembly includes a support halo positioned above the platform and extending about a vertical central axis. The safety harness includes an interface structure moveably coupled to the support halo.

A locomotion system for use with a virtual environment technology includes a platform configured to support a user, a harness support assembly coupled to the platform and extending upwardly from the platform, and a safety harness configured to be worn by the user. The harness support assembly includes a support halo positioned above the platform and extending about a vertical central axis. The safety harness includes an interface structure moveably coupled to the support halo.

A cardiac enhancement training device is provided. The cardiac enhancement training device includes an adjustable height assembly designed to change a height of a handrail of the cardiac enhancement training device. In one instance, the adjustable height assembly changes the height of the handrail by changing a height of an upper base including the handrail. In one instance, the adjustable height assembly is included in a plurality of support posts that support an upper base of the cardiac enhancement training device. Further, provided are system and methods for adjusting one or more operating parameters of the cardiac enhancement training device based on a plurality of user inputs.