Exercise systems are provided that comprise at least a weight-supporting apparatus, the weight-supporting apparatus being configured for use with an upright exercise equipment apparatus and for at least one of receiving or supporting a weight-bearing component, an integrated scale and an integrated weight sensor, a digital display configured to at least display a weight data detected by the integrated scale and the integrated weight sensor, the weight data including at least an indication of a weight supported on the weight-supporting apparatus, a distributed network, and a server comprising a processor and one or more memory storage areas, the processor being configured to transmit the weight data over the distributed network to one or more remote devices, the one or more memory storage areas being configured to store the weight data on the server. A method of using an exercise system is also provided.

There is described an integrated unweighted gait training system having an unweighting system comprising a computer controller; a gait measurement system in communication with the controller; and a display in communication with the computer controller adapted and configured to provide real-time feedback to a user of the integrated unweighting gait training system. The unweighting system may be a differential air pressure (DAP) unweighting system or a non-DAP unweighting system.

A boxing, kickboxing or martial arts bag such as a slip ball or double end bag including a swivel bearing adjustable strap.

This invention relates generally to a ball delivery system and method, and more particularly to a ball delivery system where the axis of rotation of the ball delivered from the system can range from perpendicular to the direction of motion of the ball to parallel to the direction of motion. This invention also permits a user to enter information related to the speed and axis of rotation of the ball. This invention also permits information related to the speed and axis of rotation of the ball to be determined from a video of a ball.

An apparatus comprises a wave generator configured to move water on a front side of the wave generator to generate a surfable wave and a displacer configured to move in synchronization with the wave generator, the displacer to displace water on a back side of the wave generator to compensate for water elevation changes on the back side of the wave generator that would occur in the absence of the displacer.

A golf club includes a club head having a volume of greater than about 360 cm.sup.3 and a mass less than 200 g. A shaft attachable to the club head has a tip end, a butt end, and a shaft balance point distance, BP.sub.s, as measured from the butt end, of no more than 19 inches. And the golf club has a mass less than 300 g.

An exercise bike includes a frame, a rotor assembly and a drive assembly mounted on the frame, where the drive assembly is configured to drive rotation of the rotor assembly, and a cover configured to at least partially cover the rotor assembly. The components of the drive assembly and the rotor assembly include structures that improve the performance of the exercise bike, including but not limited to a strong and rigid construction and improvements in belt tracking, user feel, effort consistency, synchronization, and rotor performance.

A shaft for a golf club includes a first end, a second end, and a demarcation. The first end is adapted to attach to a club head. The second end is adapted to receive a grip distal to the first end. The demarcation is positioned at or adjacent to the balance point of the golf club between the first end and the second end.

An athlete wearing footwear measures jump heights with a motion sensor mounted on the footwear over toes of the athlete. By sensing vertical jump start motions the sensor detects jump start and finish times of −4 g start and −4 g landing. The sensor, a body wearable mems sensor developed by JAWKU, L.L.C., has a previously installed generic factory scale calibration factor. The athlete replaces this calibration factor with a new calibration scale factor selecting an “absolute” external reference device which measures jump height. This device measures several jump heights then inputted to an algorithm app in the sensor to calculate the new calibration scale factor customized to the actual athlete. The motion sensor has built in programming apps to periodically receive an upgraded factory scale calibration factor which upgrade is based on an ever increasing data pool of jump heights. The updated factory calibration factor is then again replaced by the athlete personally taking several new measured jumps which jump heights are in turn inputted to the sensor. The progress made in evolving jumping skills based on training and specific conditioning exercises can thus be motion sensor evaluated.

A system for analysis of user gait and to provide correction in form of haptic and visual feedback. This system comprises a motion and force sensors and a haptic actuator embedded in the user shoe insoles in communication with a smart-phone based analysis application, configured to calculate motion and orientation of the user feet in relation to the value, location and distribution of ground reaction forces measured by sensors located in the shoe insoles and after analysis of said forces and motion, to provide haptic feedback to the user foot instructing about the location (and timing) of pressure the user must apply to achieve an optimal gait.