A device for training purposes or recreational activities using structures having a range of properties. The training device may include a board made of wood (or other material such as metal, rubber, plastic, or a combination thereof) and one or more suspension assemblies coupled to the bottom surface of the board. The assembly is adapted to be coupled to a longitudinal or a lateral slot on the board. The slots allow a user to longitudinally and laterally move the assembly without uncoupling it from the board, thereby allowing the user to easily position and re-position the assembly on the board to change the performance of the training device. Each of the assemblies may include an inflatable base having a polygon or circular shape. The base is for providing a cushioning effect when the board impacts the ground after a user performs an aerial maneuver.

Provided is a rehabilitation and training gaming system that can comprise a mechanism of detecting user inputs, such as a camera, joystick, force sensor, position sensor, inertial sensor, robotic interface, bioelectrical signal sensor, etc., computing unit(s) for processing inputs and generating outputs, and a computer-rendered object that is at least partially controlled by the user's inputs in a physics-driven manner. The physics-driven manner involves the computer-rendered object responding to user inputs in a manner which is both continuous and time-dependent, including but not limited to: a viscosity relationship, where the velocity, or rate of change, of a property of the computer-rendered object is proportional to the user's input, or an inertial relationship, where the acceleration, or second time derivative, of a property of the computer-rendered object is proportional to the user's input.

A stretching device comprising an elongated band having a first end and a second end, a first handle coupled to the band proximate the first end, a second handle coupled to the band proximate the second end, and a boot coupled to the band between the first end and the second end, the boot adapted to engage with a body part of a person, horse, or other animal.

Embodiments of the present invention are directed to devices, systems, and methods for measuring values obtained from one or more sensors installed on a player's tennis racket and/or worn on the player's body, and using those values to calculate various parameters, such as the physical position and motion of the tennis racket. Embodiments may translate the parameters and derive one or more occurrences corresponding to phases of a tennis point or drill and then generate real-time audible, visual, and/or haptic coaching prompts and other related commands and signals, for the purpose of improving a player's motor skills. Embodiments may also send and receive messages to/from other embodiments, thereby permitting a player to interact with other players, coaches, or devices, such as ball machines and cameras.

Training system, comprising: at least one bottle (100, 100), preferably a drinking bottle, comprising: at least one weight coupling section at which at least one weight (200, 210, 200, 210) can be arranged; at least one weight (200, 210, 200, 210) adapted to be arranged at the weight coupling section of the bottle (100, 100), wherein the bottle (100, 100) and/or the weight (200, 210, 200, 210) comprise locking means by which the bottle (100, 100) and the weight (200, 210, 200, 210) can be releasably locked.

Swimming goggles are developed to allow a swimmer to see the end of the pool without moving their head while swimming in backstroke. Using a light reflector, a swimmer can see through a backstroke viewing window, allowing them to see along the direction that they are moving when swimming backstroke. Using a motion sensor and electric control circuits, a swimming goggle can provide optimum views for the swimmer wearing the swimming goggle. Using a sound speaker, a swimming goggle can play music and provide voice reports to the swimmer.

A penalty allocation system includes a first equipment, a second equipment, and a processing circuit. The first equipment is configured to be worn by a first player. The first equipment includes a signal-carrying material configured to carry a signal. The second equipment is configured to be worn by a second player. The second equipment includes a sensor configured to acquire signal data from the signal in response to the sensor of the second equipment directly engaging the signal-carrying material during an impact between the first equipment and the second equipment. The processing circuit is configured to determine at least one of a penalty and a reward for a recipient regarding the impact between the first player and the second player based on the signal data. The recipient includes at least one of the first player and the second player.

An automated objective American-football evaluation system may include an American-style football, at least one sensor carried by the football, and electronics to: (a) receive a string of sensor signals from the at least one accelerometer; (b) determine a time of an initial impact of the football with a receiver based upon the received string of sensor signals; and (c) output a catch quality, the catch quality being based upon a portion of the string of sensor signals that is based upon the determined time of the initial impact of the football with the receiver.

A swim paddle can include a low profile housing body including a hand surface and a water surface. The low profile housing body can further include a longitudinal axis that is parallel to the length of a hand of a swimmer and a transverse axis that is parallel to a width of the hand, wherein the longitudinal axis is longer than the transverse axis, and wherein the hand surface is adjacent to a palm of the hand. The paddle can further include a strap that can secure the low profile housing body with the hand of the swimmer. The swim paddle can further include an electronics package that can be affixed to the low profile housing body.

A swing analyzing apparatus as a motion analyzing apparatus includes a computation unit (a swing diagnostic device) that quantifies a swing of a golf based on an output of an inertial sensor (an acceleration sensor and an angular velocity sensor), a storage unit that stores a numerical value which is obtained by quantifying a plurality of the swings, and an output unit (a processing unit) that detects the numerical value deviating from a predetermined range among a plurality of the numerical values and outputs a play state.