Question

20. What determines the strength of a muscle contraction?

Answer 1

Muscle strength is also a result of the combination of three factors: Physiological strength, which depends on factors such as muscle size, the cross-sectional area of the muscle and responses to training. Neurological strength, which looks at how weak or how strong the signal is that tells the muscle to contract.

Answer 2

The higher the recruitment, the stronger the muscle contraction will be. The greater the cross-sectional area of the muscle, the more muscle fibers that can be activated simultaneously.

Muscle strength is directly dependent upon the size of the cross-sectional area of muscle.

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