Objectives: To determine the acute effects of exercise on plasma levels of markers of endothelial damage in patients with symptomatic peripheral arterial occlusive disease (PAOD). Design: Prospective observational study of patients with angiographically proven PAOD undergoing treadmill exercise testing prior to surgical or radiological intervention. Materials and methods: Ante-cubital venous blood sampling was performed in 20 patients with symptomatic PAOD prior to, and 2 min after, treadmill exercise testing. Samples were then assayed for von Willebrand factor (vWf), tissue-type plasminogen activator (tPa), and plasminogen activator inhibitor (PAI) levels. Results: Despite a significant fall in median ankle-brachial pressure indices from 0.96 pre-exercise to 0.59 post-exercise on the right, and from 0.92 to 0.40 on the left (both p < 0.005), there were no significant changes in plasma levels of vWf, tPa, or PAI following claudication-inducing exercise. Conclusions: Claudication-inducing exercise does not produce acute alterations in plasma markers of endothelial damage, and the results of this study do not support the belief that claudication-inducing exercise in PAOD is damaging to vascular endothelium.
Woodburn, K. R., Rumley, A., Murtagh, A., & Lowe, G. D. O. (1997). Acute exercise and markers of endothelial injury in peripheral arterial disease. European Journal of Vascular and Endovascular Surgery, 14(2), 140–142. https://doi.org/10.1016/S1078-5884(97)80211-0