Discussion The main finding of the present study is that after
prolonged endurance treadmill running, the pressure and flow generating capacities of the inspiratory muscles were reduced. These changes were accompanied by a decrease in leg strength. This reduced capacity of the inspiratory muscles, which is reversible by rest, is indicative of muscle fatigue (National Heart, Lung, and Blood Institute, 1990). A further finding was that measures of expiratory muscle strength and expiratory function were unaffected by the marathon run.
Discussion The main finding of the present study is that afterprolonged endurance treadmill running, the pressure and flow generating capacities of the inspiratory muscles were reduced. These changes were accompanied by a decrease in leg strength. This reduced capacity of the inspiratory muscles, which is reversible by rest, is indicative of muscle fatigue (National Heart, Lung, and Blood Institute, 1990). A further finding was that measures of expiratory muscle strength and expiratory function were unaffected by the marathon run.
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