Assessment of vertical jump performance by using a varied systems and tools is continues processing, because the vertical jump is very important for athletes in many sports for training and testing. A high vertical jump contributes to improve athletic performance, particularly in sports that depended on stretch-shortening cycle such as pouncing movements. Notwithstanding many studies emphasized the vertical jump techniques we still find many results not clear. Lees et al (2004) indicated to the important of arm swing to enhance vertical jump performance and resulted the enhancement of performance when jumping using an arm swing is due to increased height (28%) and velocity (72%) of the CM at take-off (Lees, Vanrenterghem, & Clercq, 2004).
Marques
Marques