Discussion Questions: 1. Provide a detailed description of how changes in a muscle's moment arm impacts its torque production and how changes in a muscle's length impacts its force generating ability. Cite specific examples from your data that support these descriptions. 2. Discuss the pros and cons of manual muscle testing. What are the limitations and assumptions that must be made for the analyses performed in this lab? What steps could be taken to address these concerns if you repeated this experiment?
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The moment arm is the perpendicular distance between the muscle's line of action and the joint axis. When the moment arm increases, the torque produced by the muscle also increases. This is because a longer moment arm allows the muscle to exert a greater force at Show more…
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