Comparison of shoulder's net moment between practice and real condition
Résumé
At the begining of skill training, gymnasts have some difficulties to perform twisting somersaults. Although upper limbs coordination is repeated on the ground, gymnasts are not able to repeat the same movement during somersault. The purpose of this paper was to propose a mechanical explanation of this problem. A comparison of joint dynamics between two gesture was made: on the one hand the upper limbs movement is executed on the ground (T); on the other hand, the same movement is executed during a somersault twisting. Comparison was made with regard to net joint moment because they are responsible to segments movement (Vaughan, 1996). These computations are made on shoulder's joint.