A training device or apparatus for improving performance speed. In one embodiment, the training device includes first and second surfaces disposed in an opposing manner and defining a space therebetween. The space can allow at least one body part of an athlete to cyclically travel between the first and second surfaces in a plane that intersects both of the first and second surfaces. The athlete can be supported such that the body part is substantially free from external resistance along a direction of travel within the plane. In this way, repeated movement of a body part can occur between the first and second surfaces without fatiguing muscles due to external resistance, thereby lengthening the duration of the training session. The at least one body part can include the feet of the athlete.

An exercise device includes an elastic cable, a panel, and a spindle coupled to an interior side of the panel. The spindle has a locked state and an unlocked state, the spindle being rotatable in a first direction to wind the elastic cable and being rotatable in a second direction to unwind both ends of the elastic cable when the spindle is in the unlocked state, and the spindle being non-rotatable when the spindle is in the locked state. A first stirrup is coupled to a first end of the elastic cable, and a second stirrup is coupled to a second end of the elastic cable.

A shaped standing mat or base providing a trampoline-like rebounding surface that is a highly responsive and dynamic support surface for a standing person where that person is able to maintain a proper stance relative to their foot angle, and to engage in mild exercise movement and foot rotation and stretching without undue interruption of mental concentration in a work or other environment.

The present invention is intended to provide an active exercise apparatus for lower limbs that allows a user to perform on a floor lower limb active exercise highly effective in preventing thrombosis. An active exercise apparatus for lower limbs 10 includes, for example, a base body 1; a shaft 2 fixed to the base body 1 such that a central axis is vertical to the surface of the base body 1; arms 3a and 3b that are rotatably attached to the shaft 2 and are extended in two directions at an equal angle with respect to the central axis of the shaft 2; sole support plates 4a and 4b that are attached to leading ends of the arms 3a and 3b and rotatable by rotation axes x.sub.1 and x.sub.2 parallel to the surface of the base body 1 and the rotation axes z.sub.1 and z.sub.2 vertical to the surface of the base body 1; and reaction force exertion members that are installed on the back surfaces of the sole support plates 4a and 4b to exert a reaction force on backward rotation by rotation axes x.sub.1 and x.sub.2 parallel to the surface of the base body 1.

A pedal system for tracking use of a cycle style exercise device. The pedal system includes a pedal with a shaft for coupling to the pedal crank of the exercise device and a housing that is rotatable about the shaft. An accelerometer positioned in the housing is configured to provide data about the movement of the pedal to a microcontroller. A wireless communication chip positioned in the housing is used to transmit the data about the movement of the pedal to a remote device via the wireless communication chip. The remote device is programmed to receive, display and track the data about the movement of the pedal.

An exercise device may include at least one pedal pivotably mounted to a leg rest portion and having a neutral position relative to a pivot axis. The pedal may be configured to rotate about the neutral pivot axis in a first direction away from the neutral position and in a second direction away from the neutral position. The devise may further include a counteracting force member configured to exert a force on the pedal about the pivot axis opposite to the respective first and second directions of rotation. The device may be adjustable to at least a first and a second configuration. In the first configuration, the pedal may be disposed in the neutral position to receive a foot of a user in a sitting position. In the second configuration, the pedal may be disposed in the neutral position to receive a foot of a user in a supine position.

An exercise device with a crank housing supporting a pedal crank having a pair of opposing pedals that are pivotally mounted to the pedal crank. A first strut extends from the crank housing and is jointed to a second strut by a coupling that selectively allows the struts to rotate relative to each other so that the device may be folded into a planar configuration or extended for use. A cross-member is positioned at the end of each strut to form legs for supporting the pedal crank in an upright position. A tensioner is associated with the crank housing for selectively increasing and decreasing the force needed to turn the pedal crank. A telescoping arm may be used to interconnect the exercise device to a table or seat so that it can be folded and stored under the table or seat, and unstowed and unfolded for easy use.

An exercise device with a crank housing supporting a pedal crank having a pair of opposing pedals that are pivotally mounted to the pedal crank. A first strut extends from the crank housing and is jointed to a second strut by a coupling that selectively allows the struts to rotate relative to each other so that the device may be folded into a planar configuration or extended and locked into place for use of the pedal crank. A cross-member is positioned at the end of each strut to form legs for supporting the pedal crank in an upright position. A strap may be coupled to one of the pair of legs for additionally securing the exercise device to an airline seat. A tensioner is associated with the crank housing for selectively increasing and decreasing the force needed to turn the pedal crank.

An abdominal exercise device is used to exercise and strengthen core muscles. The device includes a hinged frame, a first plurality of rolling supports, a second plurality of rolling supports and a rocking base. The first plurality of rolling supports and the second plurality of rolling supports are connected along the hinged frame laterally opposite each other. Together, the hinged frame, the first plurality of rolling supports and the second plurality of rolling supports are used to interact and brace portions of the user's back as the user performs an exercise. The rocking base is connected to the hinged frame and is used as a pivot point about which the user and the rest of the device can rock, tilt, or rotate. A frame-grasping assembly is mounted to the hinged frame. The frame-grasping assembly allows the user to hold onto the device and maintain stability while performing exercises.

A shaped standing mat or base providing a trampoline-like rebounding surface that is a highly responsive and dynamic support surface for a standing person where that person is able to maintain a proper stance relative to their foot angle, and to engage in mild exercise movement and foot rotation and stretching without undue interruption of mental concentration in a work or other environment.