Applied anatomy and kinesiology, the mechanism of muscular movement . Fig. 179. Fig. 180Figs. 179 and 180.—The headspring. Start and finish. 298 GYMNASTIC MOVEMENTS should be balanced on the head and hands with hips fully flexed andknees nearly straight (Fig. 179). When this position is gained theelbows should be gradually extended by action of the triceps untilthe body begins to fall backward. A sudden and strong extensionof arms, trunk and hips should now be made by use of all theextensor muscles, projecting the body into the air feet first, in adirection diagonally upward and backward. If t
Applied anatomy and kinesiology, the mechanism of muscular movement . Fig. 179. Fig. 180Figs. 179 and 180.—The headspring. Start and finish. 298 GYMNASTIC MOVEMENTS should be balanced on the head and hands with hips fully flexed andknees nearly straight (Fig. 179). When this position is gained theelbows should be gradually extended by action of the triceps untilthe body begins to fall backward. A sudden and strong extensionof arms, trunk and hips should now be made by use of all theextensor muscles, projecting the body into the air feet first, in adirection diagonally upward and backward. If this is followed bya quick flexion of trunk and limbs the body will turn enough tocome to the mat with head up and feet on the mat, and erect posi-tion can be gained by use of the extensor muscles again (Fig. ISO).
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