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Energy Cost During Prolonged Walking vs Jogging Exercise.

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    Jogging burns more calories and fat than walking at similar intensities. Despite higher energy expenditure, participants found jogging less strenuous and noted improved cardiovascular efficiency.

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    Area of Science:

    • Exercise Physiology
    • Sports Science
    • Human Metabolism

    Background:

    • Understanding energy expenditure and substrate utilization during different exercise modalities is crucial for optimizing training and weight management.
    • Previous research has explored walking and jogging, but direct comparisons at controlled intensities and durations are needed.

    Purpose of the Study:

    • To compare the total energy expenditure and substrate utilization between walking and jogging at matched relative exercise intensities.
    • To assess perceived exertion and cardiovascular efficiency (oxygen pulse) during both activities.
    • To evaluate post-exercise recovery energy expenditure.

    Main Methods:

    • Nine healthy young men completed two exercise protocols: walking and jogging at 65% maximum heart rate (HR max) for 60 minutes, and at 75% HR max for 45 minutes.
    • Measurements included oxygen consumption, substrate utilization, perceived exertion, and oxygen pulse.
    • Post-exercise recovery oxygen consumption was monitored.

    Main Results:

    • Jogging resulted in significantly higher total energy expenditure and fat utilization compared to walking at both 65% and 75% HR max.
    • Perceived exertion was lower during jogging, and oxygen pulse was higher, indicating greater cardiovascular efficiency.
    • The highest recovery energy expenditure was observed after jogging at 75% HR max.

    Conclusions:

    • Jogging is a more effective modality than walking for increasing total and fat energy expenditure at moderate intensities.
    • Jogging may offer superior cardiovascular benefits and be perceived as less strenuous than walking at equivalent relative intensities.
    • Higher intensity jogging elicits a greater metabolic recovery response.