Jump Testing on the VALD Performance ForceDecks

The video showcases two essential jump tests performed using the VALD Performance ForceDecks—key tools in comprehensive athletic performance evaluation. While the jumps may appear similar at first glance, they accentuate distinct physiological and biomechanical strategies athletes employ during sporting events. The countermovement jump (CMJ) involves a rapid, rebound-like movement where mechanical energy is stored in the tendons and other fascia. This mechanical energy, combined with the potentiation of the neuromuscular system during the quick descending motion, contributes to the jump's efficiency and height. In contrast, the squat jump (SJ) starts from a static position, with the athlete holding a squat for three seconds to dissipate stored mechanical energy. This three-second hold eliminates reliance on elastic recoil and neuromuscular preactivation, forcing the athlete to depend primarily on the contractile strength of their lower-extremity muscles. Analyzing jump height and related metrics provides critical insights for designing individualized training programs. For example, suppose an athlete demonstrates similar heights in both jump tests. In that case, it may indicate a need for plyometric training to enhance their ability to store and release mechanical energy and improve neuromuscular preactivation. Hence, by leveraging these tests, coaches and sports scientists can develop tailored strategies to optimize athletic performance effectively.