Explosive force evaluation, UM recruitment, evaluation of the FT percentage.
The muscular activation is concentric.
In this test the subject stand on the center of the platform in 1/2 squat position (both knee at 90°) with trunk erected and the hands at waist, has to perform a vertical jump.
The athlete has to carry out this test without countermovement in order to avoid the storage of elastic energy.
The takeoff and the landing must be performed with legs completely extended.
After the landing it is advisable to carry out little rebounds on toes
The Squat Jump allows to estimate, through the achieved elevation, the capability of the inferior limbs to express explosive force. The elevation is obtained from the flight time of the subject with the formula:h=t2 x 1,226