An activity tracking racquet attachment device tracks activity such as calories burned over a period of using a racquet to which the device is attached. The device includes a housing having a first face and a perimeter sidewall extending from and around the first face. A processor is coupled to the housing. A motion detector is coupled to the housing such that the motion detector detects movement of the housing. The motion detector is communicatively coupled to the processor wherein the processor receives motion data from the motion detector. A coupler is coupled to and extends from a second face of the housing coupling the housing to an end of a handle of a racquet such that the first face of the housing faces outwardly from the end of the handle.

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 testing and training apparatus, comprising: an upright frame; an instrumentation support that is supported by the upright frame so as to be adjustable in height; and instrumentation mountable on the instrumentation support. The instrumentation comprises a plurality of force sensors, and is rotatable relative to the upright frame, and the apparatus is controllable to output data signals indicative of force detected by the force sensors.

A golf swing analysis apparatus detects a state of a shaft of a golf club by using an output from an inertial sensor, calculates a relative rotation angle of the shaft which changes about an axis of the shaft until the shaft transitions from a first state to a second state due to a swing of the shaft, and compares the calculated relative rotation angle with a reference relative rotation angle in a reference swing which is used as a reference, with respect to at least one of a change range of the relative rotation angle, the required time from the first state to a state in which the relative rotation angle becomes the maximum, and the maximum value of the relative rotation angle, and outputs a comparison result.

A measurement system includes a first measurement unit configured to measure floor reaction forces of golfer's left and right legs, a second measurement unit that is attached to the upper body of a golfer and configured to measure an angular velocity of the golfer, and a processing unit. The processing unit calculates, based on measurement results of the first measurement unit and the second measurement unit, a first energy which is a kinetic energy of the golfer during a swing.

A communicative water bottle includes communication logic and wireless transmission logic technology electronically connected with a variety of sensors either on the water bottle or located remote from the water bottle. The sensors on the bottle create digital data associated with amount of fluid in the bottle and change thereof. The sensors remote from the bottle, which can be on an activity tracker, create digital data associated with an activity being performed by a user, such as running, or the absence of activity, such as remaining sedentary. A display on the bottle can indicate to the user the amount of fluid consumed or a reminder that fluid should be consumed. The fluid consumption data syncs with other remote devices such as mobile applications executable on smartphones.

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.

A device configured to enhance user operation of an exercise machine. The device includes control circuitry including logic configured to obtain a stroke measure associated with an exercise motion performed by the user operating the exercise machine; obtain a speed value associated with a target speed for the exercise motion; determine a target period for the exercise motion, based on the stroke measure and the speed value; and output a guide indicator representing the target period on a display.

Physical and/or sensory skills may be trained by varying the quantity of sensory information available to an individual, the quality of sensory information available to an individual, and/or the difficulty of physical training performed by an individual. The difficulty of training may be varied using eyewear that alters the quality/quantity of visual information available and/or that provide a display that instructs the individual training to increase/decrease the difficulty of training tasks. The difficulty of training may be varied in response to measurements of the physiology and/or performance of an individual training.

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.