An apparatus for natural torso and limbs tracking and feedback for electronic interaction with fall safety support. The apparatus comprises a body harness worn on the body of a user, a support structure designed to bear the weight of the user in the event of a stumble, trip, or fall, and a plurality of tethers attached at one end to the harness and at the other end to the support structure. One or more sensors are integrated into the system to measure aspects of the user's movement and used as input to control a computer system. In the event of stumble, trip, or fall, all of, or a portion of, the user's body weight is borne by the tethers as a safety mechanism to prevent injury. The system is designed to be used with virtual reality systems wherein the user's vision is blocked or obscured by a virtual reality visor.

A lighting system for a treadmill comprising front power disks positioned at each end of a front axle, rear power disks positioned at each end of a rear axle, a spring-loaded carbon brush associated with a respective power disk, each spring-loaded carbon brush attached to a fixed part of the treadmill and in physical contact with the respective power disk, each spring-loaded carbon brush electrified by a primary power source and in turn electrifying the respective power disk, and a first conductor connected to at least one slat of the multiple slats and a second conductor connected to the at least one slat, the first conductor and second conductor in electrical communication with a light on the at least one slat and in contact with one of the front power disks or the rear power disks.

A treadmill having a tread comprising multiple slats is configured to rotate around a front axle and a rear axle of the treadmill, wherein at least one of the multiple slats is a lighted slat. The lighted slat comprises a slat base having an upper surface, a leading edge and an underside. A light is attached to the slat base. The treadmill further comprises a power source for the light.

A caterpillar treadmill includes a non-rotational axle, a roller, a driver wheel, a follower wheel, two caterpillars, and tread slats. The roller is rotationally supported on the non-rotational axle. The driver wheel includes teeth on an external face, and is connected to the roller so that the driver wheel is rotatable together with the roller. The follower wheel includes teeth on an external face, and is connected to the roller so that the follower wheel is rotatable together with the roller. The first caterpillar is wound on the driver wheel and includes, on an internal face, racks engaged with the teeth of the driver wheel. The second caterpillar is wound on the follower wheel and includes, on an internal face, racks engaged with the teeth of the follower wheel. The tread slats are attached to an external face of the caterpillars.

A system and method for using a body joystick to interact with a virtual or mixed-reality machines or software applications that uses a support arm to hold a device for attaching the body joystick to a user's body, a sensor for detecting movement, and a tether and actuator for providing feedback to the user about interactions with the virtual or mixed-reality machines or software applications.

Disclosed herein are a motion-based virtual-reality simulator device and a method for controlling the same. The motion-based virtual-reality simulator device includes a virtual-reality interface for outputting virtual reality content in a form of multi-sense data that is perceptible by a user, a virtual-reality movement implementation unit including a track component for performing continuous track motion in a state in which a user gets on the track component, the track component being configured such that a slope of the track component is controlled while a surface of the track component is deformed into an even surface or an uneven surface, and an interworking control unit for outputting a control signal to the virtual-reality movement implementation unit so that a slope and a surface of the track component are deformed in accordance with the virtual reality content that is output through the virtual-reality interface.

A treadmill includes a deck having a continuous track, and a plurality of slats fixedly connected to the track. The treadmill also includes a first post extending from the deck, a second post extending from the deck opposite the first post, and a first arm supported by the first post and including a first rotary control. The treadmill further includes a second arm opposite the first arm and supported by the second post. The second arm includes a second rotary control separate from the first rotary control. The first rotary control is configured to control a first function of the treadmill and the second rotary control is configured to control a second function of the treadmill different from the first function.

A treadmill is provided according to various embodiments herein. The treadmill includes a frame; a front shaft coupled to the frame; a rear shaft coupled to the frame; and a running belt disposed about the front and rear shafts, wherein the running belt assumes at least a portion of a curved running surface, the curved running surface having a radius of curvature of approximately 88 to 138 inches.

There is provided a motorless treadmill. The motorless treadmill includes: a motorless track having a curved shape such that an inclination angle increases with respect to a ground surface toward a front end and a rear end of the motorless track, and configured to move around a closed path by a user's footsteps; and a pair of side covers disposed on two opposing sides of the motorless track, wherein the motorless track changes movement speed according to a location at which the user steps on the motorless track, and wherein, on at least one side cover of the pair of side covers, a speed-related indicator is disposed to indicate information related to the movement speed of the motorless track.

A treadmill is provided. A rotation device rotatably supporting a track unit of the treadmill includes a pair of bearing trains rotatably installed at a frame structure and including a plurality of first bearings arranged along a movement direction of a belt to guide a movement of an upper region of a pair of belts and a front rotation module and a rear rotation module rotatably installed at the frame structure and respectively arranged at a front side and a rear side of the pair of bearing trains. At least one of the front rotation module and the rear rotation module includes a pair of rotation members arranged spaced apart from each other in a direction perpendicular to a rotation direction thereof and a pair of rotation support units supporting the pair of rotation members such that the pair of rotation members rotate individually.