Word: flexor
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Dates: during 1960-1969
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...right, tucked her chin into the hollow of her shoulder. (Though Marilyn did not know it, there is sound scientific basis for easing tension this way. She hit upon it naturally. Some subjects never learn it.) But no matter how hard she strained her right forearm's flexor muscle, the chain began to reel out link by link, letting the weight down. Dr. Hellebrandt, in the harshest voice she could muster, snapped: "Hang on to it!" Marilyn's face was contorted in what is officially recognized as the "agony phase." She could only gasp...
...muscles cannot be effectively exercised (as after paralytic polio, when one limb or one side of the body may be affected), it can nevertheless be built up by exercising healthy muscles near by, or the corresponding set on the opposite side. Significant evidence: one subject exercised her left forearm flexor, got a 76% increase in its strength, plus a 20% boost in its antagonist extensor muscle, and an amazing 130% in the unexercised right flexor and 50% in the right extensor...