A multi-functional curved board to be used when working in standing position and for working when sitting down as a support for feet and generally for maintaining muscle strength, the multi-functional curved board having at least one curved body (1). The body (1) comprises at least one counter-curve means (3). One surface (1b) of the body is curved outwards and the counter-curve means are fastened to a surface (1a) opposite this surface (1a) adjacent the end sides (1d) of the body (1) and the counter-curve means are curved outwards from the opposite surface of the body (1).

A spring-loaded adjustable workout handle apparatus for adjustable height and cushioned workouts includes a handle having a parallel portion and a pair of perpendicular return portions. A pair of support tubes is coupled to the perpendicular return portions. Each support tube is cylindrical and has a sidewall and an open bottom end. A pair of support legs is coupled to the pair of support tubes. Each support leg has a shaft portion and a foot portion. The shaft portion is slidably engaged within the open bottom end. Each of a pair of springs is coupled within one of the support tubes and is compressible by the shaft portion of the respective support leg. Each of a pair of adjustment mechanisms is selectively engageable with the pair of support tubes and the pair of support legs to adjust a fixed height of the handle.

A multi-purpose athletic training platform exercise device is provided. A user may stand atop a platform and exercise while connected to a downward pulling source of resistance. This machine allows the user to walk forwards, backwards and side-to-side freely while still having attachment to the resistance source via a connecting means. This will activated all the muscles in the lower body while tractioning the lower back and helping to reduce pelvic tilt. The resistance maybe varied during the user effort. The user is able to step off the machine to climb up or down a step, or walk up and down a ramp that may be provided.

A motion sensor package with an elastomer layer that encases the sensor electronics, including the sensors, a processor, an antenna, and a battery. The elastomer layer may provide shock isolation and water resistance to protect the enclosed electronics. Embodiments may also include an outer housing into which the elastomer encased package is installed. The outer housing may for example comprise two cylindrical sections that screw together to close the outer housing. In one or more embodiments part of the outer housing may be integrated into an item of sports equipment. Embodiments for golf may also include a golf club grip adapter that is inserted into the top of a grip, and which attaches to the outer housing containing the elastomer enclosed sensor package.

A training sled configurable for adding weights in some embodiments to increase friction and provide for weight-training by lifting portions of the sled. Sled components are slidably or pivotably connected to permit lifting a shoulder member of the sled to different heights and to achieve an optimal training angle.

A sport combat training machine including a base assembly; a post; a shaft assembly having a spring adaptor; a mounting frame that mounts onto the post; a lower striking assembly having a first motor with a respective first adaptor having a first spring attached to a respective first lower striking arm; an intermediate striking assembly; an upper striking assembly including a second motor, with a second adaptor having a second spring attached to a respective first upper striking arm; and an electrical system having at least one computer configured with software to operate the first and second motors and a pedal for controlling the at least one computer. The intermediate striking assembly includes a body having a target area and at least one sensor. The sport combat training machine further includes a top plate assembly having at least one sensor.

The present invention relates to a multi-functional exercise apparatus, and particularly to a multi-functional exercise apparatus which is safe and allows various exercises with different setups to be performed by means of a single apparatus. The present invention, relating to a multi-functional exercise apparatus provided so as to impart a sense of stability to a user when exercising while at the same time allowing various exercises with different setups to be performed by means of a single apparatus, comprises: a plate-shaped body (A) forming the floor surface and having a space in the interior thereof; fixed frames (100) fixedly disposed upwardly on both sides of the body (A); rotatable frames disposed upwardly on both sides of the body (A); handle parts (200) connected on one side of the rotatable frames and provided so as to be movable forwards and backwards; and a foot plate part rotatably provided on upper surface of the body (A) and connected to the other side of the rotatable frames. The multi-functional exercise apparatus according to the present invention imparts a sense of stability to a user as the rotatable frame comprises a plurality of linked sections and connects the handle parts and foot plate part, allowing the user to exercise by rotating not the entire rotatable frames but only the handle parts which are comparatively short compared to the rotatable frames. Furthermore, each linked section of the rotatable frames is rotatably attached to the handle part or to the side of the fixed frame, allowing the rotatable frames to stably transmit driving power from the handle parts (200) to the foot plate part and to be changed so as to allow various exercises with different setups to be performed.

An article of weightlifting equipment includes a weightlifting jacket having a main vest-shaped body having a front covering the torso of a user, a back connected to the front, and one or more pads that provide a cushion to provide comfort and to protect the user from injury by reducing the force on the body caused by a barbell. The pads include a front pad that is positioned on the portion of the jacket front to cover the lower torso of a user wearing the weightlifting jacket. The jacket also includes one or more adjustable straps that allow the jacket to be fitted for users of different sizes. The equipment can have other forms, such as a belt instead of a jacket for positioning the torso pad.

Method for coupling a sensor to a piece of equipment, such as a golf club, baseball bat, or tennis racket, that ensures that the sensor is in a known position and orientation relative to the equipment. Compensates and calibrates for degrees of freedom introduced in manufacturing and installation. The method may include manufacturing a sensor receiver that aligns with equipment in a fixed orientation, and that holds a sensor housing in a fixed orientation relative to the receiver. Remaining uncertainties in sensor position and orientation may be addressed using post-installation calibration. Calibration may include performing specific calibration movements with the equipment and analyzing the sensor data collected during these calibration movements.

An inflatable plyometric box having a first inflatable member adapted to be inflated to a pressure, a second inflatable member on top of the first inflatable member and adapted to be inflated to a pressure, and a connecting member connected to the first inflatable member and the second inflatable member which secures the first inflatable member to the second inflatable member. The first and second inflatable members incorporate drop stitch technology which provides substantial rigidity to first and second inflatable members when the first and second inflatable members are inflated to the pressures. Thus the inflatable plyometric box is substantially rigid to support a user landing on the top of the inflatable plyometric box. The inflatable plyometric box may include a stabilizing member which may be connected to the bottom of the inflatable plyometric box, wherein the stabilizing member is adapted to increase the stability of the inflatable plyometric box.