Three-dimensional cinematographical analysis of the badminton forehand smash: movements of the forearm and hand

In the game of badminton, the smash is a power stroke used to gain a point advantage. The movements of the forearm and hand not only transmit the energy produced from the arm swing to racket head, but also produce a great velocity of racket head by its rotation. Hence the forearm and hand make important actions for transmitting and producing the power in the badminton smash motion.