The chin-up is one exercise that can be used to strengthen
Chapter 5, Problem 5.25(choose chapter or problem)
The chin-up is one exercise that can be used to strengthen the biceps muscle. This muscle can exert a force of approximately 800N as it contracts a distance of 7.5cm in a 75-kg male3. How much work can the biceps muscles (one in each arm) perform in a single contraction? Compare this amount of work with the energy required to lift a 75-kg person 40cm in performing a chin-up. Do you think the biceps muscle is the only muscle involved in performing a chin-up?
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