| 摘要 |
Systems and techniques relating to evaluating performance characteristics are provided. One or more fitness devices, for example, a ball and/or a mat, may have sensors for measuring a user's actions during an activity protocol, such as a testing drill. Sensor configured to detect if the fitness device meets operational criteria are disclosed. In one embodiment, the fitness device may comprise a ball and the operational criteria may relate to the weight, dimensions, and/or internal pressure of the ball. In one embodiment, data from fitness device(s) may be used to calculate a score. In other embodiments, a score may be calculated; however, it may not be associated with credentials or certified if an operational criteria is not met. |
