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Improving physical fitness by exercise training programs

S N Blair, J V Chandler, D B Ellisor

    Southern Medical Journal
    |December 1, 1980
    PubMed
    Summary

    Low-effort (LE) and high-effort (HE) exercise training improved maximal oxygen intake similarly. LE programs are more comfortable, suggesting they may be preferable for general physical fitness improvements.

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    Area of Science:

    • Exercise Physiology
    • Sports Science
    • Cardiovascular Fitness

    Background:

    • Exercise training is crucial for enhancing cardiovascular health and physical fitness.
    • Different exercise intensities and protocols may yield varying effects on maximal oxygen intake.

    Purpose of the Study:

    • To compare the effects of low-effort (LE) versus high-effort (HE) exercise training on maximal oxygen intake.
    • To assess participant comfort levels between LE and HE training regimens.

    Main Methods:

    • Thirteen young men underwent a 10-week training program on bicycle ergometers, 5 days/week.
    • Participants were randomized into LE (continuous, 50% maximal oxygen intake) and HE (2-min intervals, 80% maximal oxygen intake) groups.
    • Total work performed was equated between the LE and HE groups.

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    Main Results:

    • Both LE and HE exercise training significantly increased maximal oxygen intake (P < .01).
    • No significant differences in the magnitude of maximal oxygen intake improvement were observed between the LE and HE groups.
    • LE exercise was noted to be more comfortable for participants.

    Conclusions:

    • Comparable improvements in maximal oxygen intake can be achieved through both low-effort and high-effort exercise training.
    • Given the greater comfort, low-effort exercise training may be a more suitable recommendation for the general population seeking to improve physical fitness.