Graduated Compression Stockings Does Not Decrease Walking Capacity and Muscle Oxygen Saturation during 6-Minute Walk Test in Intermittent Claudication Patients

Abstract

We analyze the effects of graduated compression stoking (GCS) on walking capacity and oxygen saturation in intermittent claudication (IC) patients. Eighteen patients with IC performed the 6-minute walking test in 2 conditions in random order: GCS or placebo sock. Onset claudication distance and total walking distance were obtained. The calf muscle oxygen saturation was continuously monitored before, during, and after 6-minute walk test. Comparisons of the walking capacity and StO2 parameters between GCS and placebo conditions were analyzed by Wilcoxon rank-sum test. The onset claudication distance (GCS: 120±99meters vs. placebo: 150±126meters; P=0.798) and total walking distance (GCS: 330±108meters vs. placebo: 324±60meters; P=0.130) were similar between conditions. There were no differences in StO2 parameters between conditions (P>0.05). GCS does not decrease walking performance and calf muscle oxygenation saturation during 6-minute walk test in patients with IC.