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Related Experiment Videos

Weight and skinfold thickness changes during a physical training course

Z Glick, N A Kaufmann

    Medicine and Science in Sports
    |January 1, 1976
    PubMed
    Summary

    Intensive physical training impacts body weight and fat differently based on initial skinfold thickness. Thin recruits gained weight and fat, while normal and obese recruits lost fat, demonstrating varied physiological responses to exercise.

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    Area of Science:

    • Exercise Physiology
    • Human Physiology
    • Sports Medicine

    Background:

    • Body composition changes are crucial in military settings.
    • Initial body fat levels may influence adaptation to physical training.

    Purpose of the Study:

    • To investigate the effects of intensive physical training on body weight and skinfold thickness.
    • To determine if initial skinfold thickness influences training adaptations.

    Main Methods:

    • Comparison of body weight and skinfold thickness (triceps, subscapula, abdomen) before and after a 6-week intensive military training program.
    • Categorization of subjects into small (S), medium (M), and large (L) initial skinfold thickness groups.
    • Ad-libitum diet maintained throughout the study.

    Main Results:

    • Group S (thin recruits) showed significant increases in body weight (71%) and sum of skinfold thickness (SSFT) (60%).
    • Groups M (normal) and L (obese) exhibited significant decreases in SSFT (68% and 98%, respectively).
    • Group L demonstrated significant weight loss, while Group M showed minimal weight reduction.

    Conclusions:

    • Adaptations in body fat during physical training are not uniform and depend on baseline skinfold thickness.
    • Intensive training elicits divergent effects on body composition based on initial fat levels.

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