The effects of lower-body compression garments on walking performance and perceived exertion in adults with CVD risk factors

Objectives: Compression garments are used by athletes in attempts to enhance performance and recovery, although evidence to support their use is equivocal. Reducing the exertion experienced during exercise may encourage sedentary individuals to increase physical activity. The aim of this study was to assess the effect of compression garments on walking performance (self-paced and enforced pace) and rate of perceived exertion (RPE) in adults who presented with two or more CVD risk factors. Participants (n = 15, 10 female, 58.9 +/- 11.5 years, BMI 27.5 +/- 4.5 kg m(2)) were recruited. Design: A repeated measures design. Methods: Participants were randomised to Modified Bruce Protocol (enforced pace), or the 6 min walk test (self-paced), and completed the test wearing compression garments or normal exercise clothes (Control). Outcome measures included stage completed, gross efficiency (%) and RPE in Modified Bruce Protocol, and distance walked (m) and RPE in 6 min walk test. Results: In the Modified Bruce Protcol participants had a higher RPE (15.5 +/- 2.5 vs 14.3 +/- 2.2) and a lower efficiency (19.1 +/- 5.9 vs 21.1 +/- 6.7) in the compression garment condition compared with control, p < 0.05. In the 6 min walk test participants walked 9% less in the compression garment condition (p < 0.05) but did not have a lower RPE. Conclusions: Compared with previous studies reporting enhanced or no effects of compression garments on performance or RPE, this study shows adverse effects of such clothing in untrained individuals with CVD risk factors. The mechanisms underlying this negative effect require further exploration. Use of garments designed for the athletic individuals may not be suitable for the wider population. (C) 2016 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.