A system for formulating a performance metric of a motion such as water sport motion, preferable a swimming stroke, includes a wearable sensor device including 4 pressure sensors, a 9 degrees of freedom inertial measurement unit (IMU), a micro-processor communicating with the pressure sensors and the IMU, and waterproof housing in the form of a flexible silicone band to house the microprocessor, the pressure sensors and the IMU. The system includes an external computer communicating with the device for receiving and combining input data from each of the pressure sensors and the IMU, via the microprocessor, and a processing unit configured to combine the input data from both the at least one pressure sensor and the IMU. The input data is used to infer at least one force magnitude and at least one force direction, the input data being used to provide the performance metric of the water sport motion.

The present disclosure relates to systems and methods for elastic delivery, processing, and storage for wearable devices based on system resources. For example, a wearable apparatus may have at least one battery; at least one sensor configured to measure at least one property associated with a user of the wearable apparatus; at least one memory storing measurements from the at least one sensor and instructions; at least one transmitter configured to send data to a device remote from the wearable apparatus; and at least one processor configured to execute the instructions to: receive, from the at least one battery, an indicator of a charge; and based on the received indicator, sending a command to the at least one sensor to operate in a low-power mode or a high-power mode, the low-power mode having. a lower sampling rate than the high-power mode.

Apparatus and methods for measuring force exerted by an object moving in a fluid or force of a moving fluid on a stationary object. Embodiments may be configured to measure power exerted by an object moving in a fluid. At least one sensor disposed on the object outputs at least one sensor signal corresponding to a pressure differential between first and second surfaces of the object. Data derived from one or more sensor signals may be processed according to a model to output a measure of the force and/or power of the object moving in the fluid or the force of the moving fluid on the stationary object, as a function of time. Embodiments may be configured for applications such as providing feedback for control of actuators in electromechanical systems for liquid or gaseous media, and providing performance metrics during water sports, such as swimming and paddling.

A training aid to correct arm position during the pulling phase of butterfly, backstroke, breaststroke, or crawl also referred to as freestyle, when swimming. The disclosed tool provides physical pressure to correct a common swimming error. Said tool prevents medial rotation of the glenohumeral joint of the shoulder rotator cuff during the catch and pull portion of swimming.

A training aid to correct arm position during the pulling phase of butterfly, backstroke, breaststroke, or crawl also referred to as freestyle, when swimming. The disclosed tool provides physical pressure to correct a common swimming error. Said tool prevents medial rotation of the glenohumeral joint of the shoulder rotator cuff during the catch and pull portion of swimming.

An aquatic training aid includes a paddle member for wearing by a swimmer, a variable diaphragm disposed within the paddle member, the variable diaphragm including a plurality of fitted blades arranged to form an aperture, and a housing peripherally framing the plurality of fitted blades. The variable diaphragm is adjustable to change the aperture from a first expanded position to a second contracted position, and hydrodynamic characteristics of the aquatic training aid when moved through water are affected by the change of the aperture. Controlling the aperture enables the swimmer to adjust the resistance provided by the aquatic training aid when it is moved through water.

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.

An illustrated view of an exemplary pool noodle cap for protecting a pool noodle when not being utilized. The pool noodle cap is useful for preventing debris, bugs, mice and snakes from entering into any open spaces of the pool noodle. Further, the pool noodle cap is useful for a person storing the pool noodles so when summer comes, they can be instantly ready for a pool or beach without having to wash out the pool noodle or check for snakes, mice and bugs.

An illustrated view of an exemplary pool noodle cap for protecting a pool noodle when not being utilized. The pool noodle cap is useful for preventing debris, bugs, mice and snakes from entering into any open spaces of the pool noodle. Further, the pool noodle cap is useful for a person storing the pool noodles so when summer comes, they can be instantly ready for a pool or beach without having to wash out the pool noodle or check for snakes, mice and bugs.

A swim paddle system includes a substantially planar, rigid paddle having a first side for receiving a hand of a swimmer and a second side opposing the first side with a plurality of through holes extending through the paddle from the first side to the second side, the first side having a palm region for receiving a palm of the hand and a peripheral region for receiving a thumb, an index finger, a middle finger, a ring finger, a little finger, and a wrist of the hand. At least a portion of the paddle is transparent or translucent to allow at least a portion of the hand to cast a shadow as light shines through the paddle.