A grip assessment device includes a support structure having a periphery, a cover positioned around the support structure and configured to define a grip surface, and a plurality of sensor elements disposed along the periphery of the support structure, each respective sensor element of the plurality of sensor elements being configured to generate an output signal indicative of force applied to the grip surface at the respective sensor element. The plurality of sensor elements are distributed across the grip surface such that the output signals from the plurality of sensor elements are collectively indicative of a grip profile along the grip surface, the grip profile providing grip position data and grip magnitude data correlated with the grip position data.

The present disclosure provides a rotation estimation device including an acquisition section and a rotation estimation section.

A machine implemented method for simulated sports training includes the steps displaying a simulated environment having one or more virtual objects of a sporting event; displaying to a user a moving object in the simulated environment in accordance with object path data representing an object path and conditions of motion of the moving object as a function of time; correlating soundscape data to the object path data, the soundscape data being dependent on both object path of the moving object in the object path and the conditions of motion; and outputting sound to the user based on the correlated soundscape data either before or during displaying to the user the moving object, thereby providing spatial auditory clues for assisting tracking eye movements of the user to train the user to anticipate or recognize a trajectory of the moving object.

Electronic tracking systems are disclosed for assisting users with locating objects in a sporting environment. One such system includes a ball tracking component that tracks a game ball while moving in the sporting environment, and a heads up display that is worn by the user. This heads up display has an electronic display screen with a transparent display area that dynamically displays images within the user's field of view. A processor, which communicates with the ball tracking component and heads up display, is programmed to detect movement of the game ball, and responsively determine launch characteristics and/or flight characteristics of the moving game ball. The heads up display displays the launch/flight characteristics contemporaneous with an object indication adjacent to or superimposed over the moving game ball as the game ball is visible through the transparent display area of the display screen within the user's field of view.

A bicycle trainer compensation algorithm based on multi-groove belts relatively sliding to one another includes: determining a load interval and a rotating speed range, recording an external driving torque, a rotating speed, a measured torque and a no-load mechanical loss of the bicycle trainer under conditions of different loads and different rotating speeds, and obtaining a relationship between a mechanical loss of a whole machine and the rotating speed, the load, and the no-load mechanical loss, fitting a plurality of sets of relationships to obtain an algorithm relation, verifying universality of the algorithm relation, and further fitting to obtain a compensation algorithm relation, and verifying whether a compensation accuracy of the compensation algorithm relation is satisfied within an error requirement.

A smart soccer goal for tracking and communicating motion of objects includes a goal frame; a net coupled to the goal frame including a plurality of lights; and one or more sensors coupled to the goal frame. A first sensor of the one or more sensors is directed to detecting movement within and immediately near the smart soccer goal and a second sensor of the one or more sensors is directed to detecting movement outside of the smart soccer goal.

An apparatus and method for repetitively training a golf swing is disclosed. In some embodiments of the present apparatus, foot placement guides are provided to align a golfer's stance relative to a golf ball on a tee. Motion and other data capture create a swing profile for the golfer's swing, which is compared to the swing of a golf Pro, thus giving swing feedback to the golfer. The apparatus automatically resets the ball position after the swing, allowing the golfer to repeat the swing based on the received feedback while isolating other variables (such as inaccurate resetting of foot position).

Some disclosed golf club heads include body having at least one raised sole portion and a cantilevered ledge extending down around a perimeter of the club head below the level of the raised sole portion. Some disclosed golf club heads include one or more sole openings in the body and a sole insert that is mounted inside the body over the sole openings. The sole can include weight tracks as well, and a rear weight track can extend between a toe side sole opening and a heel side sole opening. A crown insert can also be included that is mounted over an upper opening in the body.

A sports ball may include a bladder having one or more pockets attached thereto wherein the pockets have holes for allowing air to escape the pockets. The pockets may include insert(s) such as sensors, a battery or a microprocessor. The pockets may also include one or more damping members to further protect the insert(s).

This disclosure relates to systems, media, and methods for providing near-instantaneous feedback from real-time motion sensor data. In an embodiment, the system may perform operations including loading at least one target motion trigger. Disclosed embodiments may receive real-time sensor data from the first motion sensor detachably fixed to a user. Additionally, disclosed embodiments may include calculating a motion profile based on the real-time sensor data, the motion profile describing a multi-dimensional representation of acceleration of a motion performed by the user. Disclosed embodiments may also include comparing the at least one target motion trigger to the calculated motion profile to determine if the motion performed by the user corresponds to the target motion. Further, disclose embodiments may include transmitting, based on the comparison, an instruction to provide an alert to a user.