Kinetic Comparison and Analysis between the Basketball Set Shot of Skilled and Unskilled Basketball Players

This study kinetically analyzes and describes a basketball set shot movement to understand the mechanism. The study intends to provide source data for teachers and students who want to analyze basketball set shot movement scientifically. To achieve the purpose of this study, a total of 12 subjects, including 6 skilled and 6 unskilled basketball players participated. The basketball set shot movement, from knee joint reaching its minimum angle to the ball leaving the hand, was analyzed. Mean kinetic variables related to the movement including angle, angular velocity, and ground reaction force were verified. In the skilled subjects, the shoulder joint angle was smaller when the knee joint was at the minimum angle and the elbow was at the minimum angle. The hip angle was large when the knee joint reached the minimum angle. The knee joint angle was small when the elbow reached the minimum angle. The elbow joint angular velocity was large when the elbow reached the minimum angle. The shoulder joint angular velocity was large when the elbow joint reached the minimum angle and when the ball left the hand. The hip angular velocity was large when the knee joint reached the minimum angle. The knee joint angular velocity was large when the ball left the hand. For the ground reaction force, the lateral ground reaction force acted outward the whole time on the right foot, and inwards when the ball left the hand on the left foot. The longitudinal ground reaction force acted backward when the knee joint was at the minimum angle on the right foot and acted backward when the elbow joint was at the minimum angle on the left foot. The vertical ground reaction force acted upward on the right and left foot when the knee joint was at the minimum angle and the elbow joint was at the minimum angle.