HMS, BM EQ-Bank 87

Describe how the endocrine system's release of cortisol affects an athlete's movement efficiency during periods of prolonged stress. (3 marks)

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Sample Answer

Cortisol released by the adrenal glands increases blood glucose levels to provide energy for movement during stress.
Prolonged high cortisol levels can break down muscle protein for energy, potentially reducing movement efficiency and strength.
Extended periods of elevated cortisol can lead to fatigue and decreased performance as energy systems become depleted.
Chronic cortisol elevation also suppresses growth hormone, impairing muscle recovery and adaptation to training.

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Sample Answer

Cortisol released by the adrenal glands increases blood glucose levels to provide energy for movement during stress.
Prolonged high cortisol levels can break down muscle protein for energy, potentially reducing movement efficiency and strength.
Extended periods of elevated cortisol can lead to fatigue and decreased performance as energy systems become depleted.
Chronic cortisol elevation also suppresses growth hormone, impairing muscle recovery and adaptation to training.