Eccentric resistance training reduces both non-response to exercise and cardiovascular risk factors in adult with overweight or obesity

摘要

ObjectivesThe aim of this study was to compare the effect of concentric or eccentric resistance training on different cardiovascular risk factors and the prevalence of non-response to exercise. Materials and methodsTwenty two overweight or obese men were divided into two exercise groups and underwent concentric (CRT) or eccentric resistance (ERT) training respectively, that consisted in squats developed with the help of a Russian belt. Each protocol was performed in four sets of eight repetitions, developed three times per week for four weeks. ResultsCRT reduced waist circumference (WC) from 111.1±4.30 to 109.4±4.69cm and systolic pressure (SP) from 119.7±6.41 to 117±5.32mm Hg. ERT reduced the WC from 110.5±4.69 to 104.4±4.05cm and SP from 121.2±4.74 to 116.9±5.18mm Hg. ERT had greater effect reducing WC value compared to CRT (?3.5% and ?11.7% for CT and ET respectively). Additionally, CRT and ERT increased the VO2 peak from 29.5±2.01 to 30.5±1.43ml/kg/min and from 28.6±2.34 to 31.92±2.31ml/kg/min respectively. Finally, higher percentage of responses to training was observed after ERT protocol compared to CRT.