Applied anatomy and kinesiology, the mechanism of muscular movement . of the upper spine to keep it inposition, and tends to make the body sag in the middle, requiringstrong action of the flexors of lumbar spine and hips and slightaction of the extensors of the knees. The action of the arms is thesame as in a typical exercise of pushing. Flexion and extension ofthe arms while in the position is strong work for the pushing muscles 292 GYMNASTIC M0YEMENTS and is done most easily with the fingers pointing somewhat inward,which turns the elbows out at right angles to the trunk and enablesthe whole
Applied anatomy and kinesiology, the mechanism of muscular movement . of the upper spine to keep it inposition, and tends to make the body sag in the middle, requiringstrong action of the flexors of lumbar spine and hips and slightaction of the extensors of the knees. The action of the arms is thesame as in a typical exercise of pushing. Flexion and extension ofthe arms while in the position is strong work for the pushing muscles 292 GYMNASTIC M0YEMENTS and is done most easily with the fingers pointing somewhat inward,which turns the elbows out at right angles to the trunk and enablesthe whole pectoralis major to work (Fig. 161). The work can bemade easier when desired by allowing the knees to rest on the flooror by placing the hands on an object above the floor. Fall Hanging.—The fall hanging (Swedish) or leaning hang(German) position, shown in Fig. 175, requires work of exactlythe opposite sets of muscles—flexors of neck, extensors of lumbarspine and hips, and pulling muscles. This, too, can be made lighterwork by increasing the slant of the Fig. 175.—The fall hang or leaning hang position. Side Falling.—The side falling (Swedish) or side leaning rest(German) position calls into action the muscles on the lower sideof the body and the upper side of the neck as in the two precedingexercises. The lateral flexors of the waist region and abductors oflower limb, which may be assisted by the abductors of the upperlimb, keep the body straight. The triceps and upper serratus domost of the pushing while several of the muscles about the shoulderwork more mildly to keep the body balanced on the arm. GYMNASTIC MOVEMENTS 293 Side Holding.—The side holding (Swedish) or side leaning hang(German) position involves the pulling muscles of the arm, upperside muscles of neck and lower side of body, as before. Exercises in which the weight of the body is supported by thehands, like hanging by the hands from bars or rings (Fig. 77), crossrest on the parallel bars (Fig.
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