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Related Experiment Videos

Initial work tolerance of extremely obese patients.

M L Foss, R M Lampman, E Watt

    Archives of Physical Medicine and Rehabilitation
    |February 1, 1975
    PubMed
    Summary

    Extremely obese patients show low, variable work tolerance upon entering rehabilitation. Walking one mile requires about 20 minutes and 150-200 kcal, with safe exercise responses observed.

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    Area of Science:

    • Obesity research
    • Exercise physiology
    • Rehabilitation medicine

    Background:

    • Initial work tolerance in extremely obese individuals is often low and highly variable.
    • Patients entering multidisciplinary rehabilitation programs exhibit a wide range of walking capabilities.

    Purpose of the Study:

    • To assess the initial work tolerance of extremely obese patients in a rehabilitation setting.
    • To quantify the energy expenditure and time required for extremely obese patients to walk one mile.
    • To evaluate the safety of graded exercise testing in this population.

    Main Methods:

    • Treadmill testing with indirect calorimetry was used to measure oxygen consumption and energy expenditure.
    • Graded exercise tests with electrocardiography were performed to screen for cardiac abnormalities.
    • Work tolerance was assessed by the time and distance patients could walk.

    Main Results:

    • Patients' ability to walk one mile varied significantly, with some achieving it initially and others requiring up to eight weeks of training.
    • Walking one mile at a pace of 3 mph took approximately 20 minutes.
    • Energy expenditure was approximately 150 to 200 net kcal per mile.
    • No hazardous cardiac episodes occurred during exercise testing and rehabilitation.

    Conclusions:

    • Extremely obese patients demonstrate substantial variability in baseline walking capacity.
    • Walking one mile is an achievable goal within multidisciplinary rehabilitation, requiring moderate energy expenditure.
    • Cardiovascular screening ensures the safety of exercise interventions for this patient group.

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