. Applied anatomy and kinesiology. n the hands and the armssupport it momentarily by a forward and upward push; then theroll continues, first the back of the head touching the mat, thenthe neck, back (Fig. 169) and hips in turn, the momentum soonbringing the feet to the floor again. (Fig. 170.) As soon as themiddle of the back comes to the floor the flexors of spine and limbsmust come into action or the weight of the separate parts willextend them and the movement will finish with the gymnast lyingat full length on his back. The body must be held in completeflexion by action of the flexor musc
. Applied anatomy and kinesiology. n the hands and the armssupport it momentarily by a forward and upward push; then theroll continues, first the back of the head touching the mat, thenthe neck, back (Fig. 169) and hips in turn, the momentum soonbringing the feet to the floor again. (Fig. 170.) As soon as themiddle of the back comes to the floor the flexors of spine and limbsmust come into action or the weight of the separate parts willextend them and the movement will finish with the gymnast lyingat full length on his back. The body must be held in completeflexion by action of the flexor muscles until the feet come to thefloor again and then the extensors must work in turn, the movementfinishing in standing position. By a strong push by the arms atthe right time the head can be kept from touching the mat. 276 GYMNASTIC MOVEMENTS By practice of this simple movement one who is strong enough,as soon as he has learned the coordination of the push with thehands, the full flexion of the body and then its full extension, can. artmg position. undertake the long or high dive, in which the body is launched intothe air head first by a forcible extension of the limbs, touches themat first with the hands, and completes the movement as in theforward roll. The muscular action is the same but much more
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