Preliminary work on the testing of power glove applied to volleyball

Spreading, in sport, of technologies able to detect and organize in real time a wide range of data relative to the athlete and the context (tracker, gps, gyroscopes, accelerometers, bio-sensors incorporated in smartphones or available as wearable devices) offers a great opportunity to collect performance data, allowing objective, accurate and non-invasive physical activity monitoring. A review in the literature revealed that, in volleyball, despite it being a sport heavily affected by the presence of technologies during performance and training (think of the spread of software for video analysis or for coaching), there is no significant presence of wearable measuring instruments. this work presents a training program designed to evaluate the effectiveness of an instrument designed to measure the pressure exerted by the palm of the hand on the ball during the execution of the serve. The goal is to investigate the difference in performance and precision that the instrument can produce, relative to the fundamental object of investigation, allowing the athletes to confront an objective data different from the simple perception of the coach or his own.