A Microcontroller System for Human Mechanical Power Measurement during Squat Jumps

This paper describes the development of a microcontroller based measuring system for testing and training athlete jumping performances. The proposed system allows the leg's mechanical power to be evaluated by means of a single s uatting jump. t makes possible to measure the time of the contact with the ground and the fly time after take off and before impact with a knee angle ranging from to, using a platform and an electrogoniometer sensor connected to a PC microcontroller. t makes also possible measuring both the angle and the angular speed of certain joints. The average value of the mechanical power spent during the jump is obtained by processing the measured data.