The posture of school children, with its home hygiene and new efficiency methods for school training . e sides,upward, backward, and downward (Fig. 50). This closing position should leave theupper arms close at thesides and should contractthe muscles that draw theshoulder blades close to-gether ; that is, inward to-ward the spine and flat uponthe back. Take the movement de-liberately, then swing theelbows directly to the frontagain, the finger tips remain-ing on the shoulders, and repeat the upward, backward, anddownward motion of the elbows, describing with them a semi-circle in one continuou
The posture of school children, with its home hygiene and new efficiency methods for school training . e sides,upward, backward, and downward (Fig. 50). This closing position should leave theupper arms close at thesides and should contractthe muscles that draw theshoulder blades close to-gether ; that is, inward to-ward the spine and flat uponthe back. Take the movement de-liberately, then swing theelbows directly to the frontagain, the finger tips remain-ing on the shoulders, and repeat the upward, backward, anddownward motion of the elbows, describing with them a semi-circle in one continuous movement. A tendency to thrust the head forward as the shoulder bladesdraw together, as well as a tendency to let the upper part of thetrunk sink backward, will have to be firmly resisted (Fig. 51).To avoid these faults of execution, keep the upper part of thetrunk well forward, with the chest over the toes, and the chindrawn inward. The opposite fault of hollowing the back toomuch and thrusting the ribs and sternum too far forward willalso have to be avoided. The objects of the exercise are (i). Fig. 49. Starting position for the shoulderblade exercise. HOW TO CORRECT POOR POSTURE 137 to strengthen the muscles that hold the shoulder blades in posi-tion, and (2) to isolate the action of these muscles from othersof the trunk, — a control that is usually accomplished withcomparative facility through this exercise.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectchildca, bookyear1913
