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Exercise prescription--North American experience.

R J Shephard

    British Journal of Sports Medicine
    |January 1, 1979
    PubMed
    Summary

    Safe and effective exercise prescription requires adequate intensity for therapeutic benefits, especially for post-coronary patients. Strategies to improve adherence are crucial for long-term exercise program success.

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    Area of Science:

    • Exercise Physiology
    • Sports Medicine
    • Cardiovascular Rehabilitation

    Background:

    • Exercise prescription aims for safety, efficacy, and compliance.
    • Cardiac events during exercise are rare, questioning the need for constant medical supervision.
    • High dropout rates plague exercise programs, particularly in middle-aged adults and post-coronary patients.

    Purpose of the Study:

    • To review exercise prescription principles in North America.
    • To address safety, therapeutic effectiveness, and compliance in exercise regimens.
    • To explore strategies for improving adherence to prescribed exercise.

    Main Methods:

    • Review of exercise prescription principles and North American experience.
    • Analysis of safety precautions and the incidence of cardiac emergencies.
    • Examination of factors influencing training response, particularly exercise intensity.
    • Investigation of exercise program dropout rates and compliance challenges.

    Main Results:

    • Exercise intensity is the primary factor determining training response.
    • Post-coronary patients have significant training potential if intensity is adequate.
    • Despite rare emergencies, safety measures are essential.
    • High dropout rates (50% in 6 months for general population, 60-70% over 4 years for post-coronary) are a major concern.

    Conclusions:

    • Optimizing exercise intensity is key for achieving therapeutic effects, especially in previously inactive individuals.
    • Addressing high dropout rates through improved compliance strategies is critical for long-term success.
    • Well-designed exercise programs may not require constant medical supervision due to the low risk of cardiac emergencies.

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