Introduction Nowadays, vertical jump-and-reach test is commonly used to measure athletic ability because vertical jump is performed frequently in many sports. Most of the time, jumping is preceded by countermovement which called countermovement jump. For countermovement jump, athletes bend the knees quickly and drop the center of body mass before jumping to achieve a maximal performance (Harman, Rosenstein ,Frykman,& Rosenstein, 1990).
However, it is not always possible for athletes to perform countermovement jump every time. In a basketball game, athletes will position themselves with bent knee and lateral raised shoulder to grab the rebound after a missed field goal which called basketball rebounding (Harman, Rosenstein ,Frykman,& Rosenstein, 1990).…show more content… Another studies found arm swing will enhance the take-off velocity for around 10%.
Previous studies have investigated the different between countermovement with arm swing, countermovement without arm swing, squat jump with arm swing and squat jump with no arm swing. Both biomechanical variables like joint angle of knee joint, hip joint and shoulder joint between countermovement jump and squat jump have been investigated. It seems no previous studies have investigated the different between countermovement jump with arm swing and basketball rebounding. The purpose of this study is to investigate the biomechanical different between countermovement jump with arm swing and basketball rebounding and investigate the relationship between biomechanical