Systems, methods and computer-readable media are provided for determining an effective altitude in relation to a moving sports object. In some examples, a method includes determining respective values for an air temperature, an air pressure, and a relative humidity of an environment of interest. Based on the determined respective values of the air temperature, the air pressure, and the relative humidity, an air density for the environment of interest is calculated to derive a first air density value. A second air density value is derived for a reference environment. An absolute value of a difference between the first and second air densities is compared against a preset comparison value and, based on the comparison being equal to or smaller than the preset comparison value, an output including an indicator of the effective altitude is generated.

This invention is embodied by a controlled, variable tension line, payout reel machine. A system of sensors detect line tension and line distance paid out, location, and transmit through wired and unwired communication to a microprocessor. The microprocessor is co-located with the reel structure, which in turn applies, via a brake feature, resistance to the reel which is paying out the line being pulled by the user. This invention pertains to all applications where it is desirable to control the tension in a line paid out from a reel or reel. As stated, the payout motive force is supplied by the person, animal or apparatus attached to the end of the line, opposite the reel. The invention applies to the field of precise and measured control of line tension for sport, sport training, performance testing.

A physical training device for emulating oxygen condition at different altitudes during a physical activity is presented, the device being configured to be carried by a user and comprising a chamber through which the user breathes in and out, the chamber comprises a patterned airway configured to control parameters of air breathed in and out by the user.

Percussive interactive device characterized in that it is composed of an external polyhedric case of deformable material and of an internal case housing an electronic device, whose purpose is to detect external forces applied on said device and to transmit the data collected, once converted into electronic data for audio applications, to an external device used to process and emit sound.

A martial arts training system comprising: (a) one or more hand held targets; (b) one or more wearable devices; and (c) trainee log-in hardware installed in said target(s) and said wearable device(s).

A sports ball system for calculating movement characteristics has a sports ball. The sports ball monitors movement characteristics of the sports ball. A wearable device receives data transmitted by the sports ball. The wearable device analyzes and displays the data transmitted.

A bicycle component and method of determining performance data by capturing and evaluating sensor data while riding an at least partially muscle-powered bicycle (100) on a road, having at least two sensors (20, 35), wherein air pressure signals (21) are captured by a barometric pressure sensor (20) and current gradient values (201) of the path (200) are derived. Track data are captured and a current speed value is captured, and performance data are obtained from the current gradient value (201) and the current speed.

A bicycle component with a measuring device with a housing and a measuring probe connected therewith, including a probe body having an exterior opening. The exterior opening is connected through an air guide with a barometric pressure sensor disposed remote from the exterior opening. The air guide includes at least two air ducts and an internal chamber that is connected with two air ducts. One of the air ducts is configured as a supply duct and begins at the exterior opening. The other of the air ducts serves as a sensor duct and connects the internal chamber with the barometric pressure sensor.

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.

Athletic performance monitoring systems and methods, many of which utilize, in some manner, global positioning satellite (GPS) data, provide data and information to athletes and/or to equipment used by athletes during an athletic event. Such systems and methods may provide route information to athletes and/or their trainers, e.g., for pre-event planning, goal setting, and calibration purposes. Such systems and methods optionally may provide real time information to the athlete while the event takes place, e.g., to assist in reaching the pre-set goals. Additionally, data and information collected by such systems and methods may assist in post-event analysis for athletes and their trainers, e.g., to evaluate past performances and to assist in improving future performances.