A subject with elbows held at 90 degrees of flexion is handed a 150 lb (68.1kg) barbell. Even though he exerts maximal tension, the barbell causes the joint angle to increase to 170 degrees. Which one of the following describes the muscle action during the extension?
Which is the most important exercise to include in an overall training plan for an apparently healthy automobile mechanic who performs daily overhead movements?
What muscle is the prime mover for a seated lateral dumbbell raise to shoulder level with elbows slightly flexed?
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