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Physical training in old men

A Aniansson, G Grimby, A Rundgren

    Age and Ageing
    |August 1, 1980
    PubMed
    Summary
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    Physical training significantly enhances aerobic capacity and muscle strength in 70-year-old men. This study demonstrates that even older adults can improve muscle composition and strength through regular exercise.

    Area of Science:

    • Gerontology
    • Exercise Physiology
    • Muscle Biology

    Background:

    • Age-related decline in muscle strength and composition is a significant concern.
    • Limited research exists on the impact of physical training on these parameters in elderly men.

    Purpose of the Study:

    • To investigate the effects of a 12-week physical training program on muscle strength and composition in 70-year-old men.
    • To assess changes in aerobic capacity and muscle enzymatic activity post-training.

    Main Methods:

    • Twelve 70-year-old men participated in a 12-week training program (dynamic and static exercises, 45 min, 3x/week).
    • Measurements included aerobic capacity, muscle strength at various angular velocities, muscle fiber composition, and key muscle enzymes.
    • A control group was used for comparison.

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    Main Results:

    • Significant increases in aerobic capacity and both static and dynamic muscle strength were observed post-training.
    • Muscle fiber analysis revealed a higher proportion of Type II fibers after training.
    • Enzymatic analysis showed significant increments in muscle myokinase and lactate dehydrogenase, indicating training adaptation.

    Conclusions:

    • Aerobic capacity and muscle strength are trainable in 70-year-old men.
    • Physical training can positively influence age-related changes in muscle composition and function.
    • The study provides evidence for effective exercise interventions in older adult populations.