Effective exercise and evaluation indexes for peripheralarterialdisease patients with intermittent claudication

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The purpose of this study was to establish the evaluation index of exercise therapyfor patients with peripheral arterial disease (PAD). The exercise therapy was conducted by using a bicycle ergometer at the intensity of the anoxic threshold (AT) provided by cardiopulmonary exercise tests (CPX) for three months. After considering maximum walkingdistance (MWD) and the relations of various indexes, the relationship between the improvement ratio of MWD before and after exercise therapy and that of recovery time (T1/2)of oxygen saturation followed by CPX in gastrocnemius muscle was significantly correlated. These results suggest that improvement of the muscle oxidative capacity in the gastrocnemius muscle contributed to improvement of walking ability, and it is thought to be an effective evaluation index.