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Related Experiment Videos

Metabolic and hormonal responses during squash.

G Garden, P J Hale, P M Horrocks

    European Journal of Applied Physiology and Occupational Physiology
    |January 1, 1986
    PubMed
    Summary

    This study monitored the metabolic and hormonal changes in men playing squash. Key findings show increased blood glucose and lactate during play, with hormonal shifts like decreased insulin and increased growth hormone post-exercise.

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    Area of Science:

    • Exercise Physiology
    • Sports Science
    • Human Metabolism

    Background:

    • Understanding the physiological demands of intermittent high-intensity sports like squash is crucial.
    • Limited data exists on the specific metabolic and hormonal responses during acute squash play.

    Purpose of the Study:

    • To investigate the metabolic and hormonal alterations in healthy adult males during and immediately after a game of squash.
    • To provide insights into the body's acute adaptive responses to this specific physical activity.

    Main Methods:

    • Eight healthy adult males participated in the study.
    • Blood samples were analyzed for glucose, lactate, pyruvate, alanine, glycerol, ketone bodies, nonesterified fatty acids, insulin, C-peptide, catecholamines, ACTH, prolactin, and growth hormone.

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  • Measurements were taken at rest and post-exercise.

    • Main Results:

    • Significant increases in blood glucose, lactate, pyruvate, alanine, and glycerol were observed during squash play.
    • Total ketone bodies and plasma nonesterified fatty acids increased after the cessation of play.
    • Insulin and C-peptide levels decreased significantly.
    • Elevated levels of catecholamines, ACTH, prolactin, and growth hormone were noted post-exercise.

    Conclusions:

    • Squash participation induces significant metabolic and hormonal changes in healthy men.
    • The observed responses reflect the body's adaptation to intermittent high-intensity exercise.
    • Hormonal shifts indicate a transition towards fat mobilization post-exercise.