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SECTION V.

THE ARM.

Front Upper Arm. (See Fig. r—D_t page 34.)

Face the Exerciser, and, while keeping the upper arm rigid, flex the elbow and bring the hand to the shoulder. Any movement of the upper arm will detract from the value of the exercise.

Back Uppf.r Arm. (See Fig. 2—L, page 34.)

With the back to the Excrciser, keeping the upper arm rigid, extend the elbow and stretch the arm to its fullest extent.

Figures i3 and 19 show exercises that are principally for the front upper arm or biceps. When the upper arm is moved, it is by the muscles of the trunk, hence keep it still when localizing the movements for the front or back upper arm. The best rcsults for the back upper arm or triceps is to keep the upper arm extended to the front and motion-less, but bend the elbow only. (See Figs. 20 and 21.)

Front Forearm. Ali movements that cali into action the hand or fingers will develop the front forearm. The closing of the fist, grasping the handles, and the fłexing of the wrist are forearm movements.