Comparison Between Reactive and Exercise Hyperemia in Normal Subjects and Patients With Peripheral Arterial Disease

Bartoli, V.; Dorigo, B.
January 1979
Angiology;Jan1979, Vol. 30 Issue 1, p40
Academic Journal
Reactive and exercise hyperemia were compared in healthy men and in patients with PAD. In both patients and normals the calf blood flow of reactive hyperemia was recorded after a 5-minute ischemia. Exercise hyperemia was measured in normals after variable work loads (30 and 50 kg) and immediately after the occurrence of pain in patients with PAD. In healthy limbs the first and peak flows of exercise and reactive hyperemia are similar. The recovery time For basal flow is prolonged alter exercise. However, reactive and exercise hyperemia differ significantly when arterial obstruction due to arteriosclerosis obliterans is present. First flow and peak flow are higher and recovery time more prolonged alter exercise. It is also likely that the control mechanisms of the two hyperemic reactions arc different. Muscular exercise, when protracted until pain occurs, can produce a metabolic and circulatory adjustment other than that of ischemia. There is experimental evidence to support this hypothesis.


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