title: Exploring the dose-response relationship between resistance exercise intensity and cognitive function.
abstract: The purpose of this study was to explore the dose-response relationship between resistance exercise intensity and cognitive performance. Sixty-eight participants were randomly assigned into control, 40%, 70%, or 100% of 10-repetition maximal resistance exercise groups. Participants were tested on Day 1 (baseline) and on Day 2 (measures were taken relative to performance of the treatment). Heart rate, ratings of perceived exertion, self-reported arousal, and affect were assessed on both days. Cognitive performance was assessed on Day 1 and before and following treatment on Day 2. Results from regression analyses indicated that there is a significant linear effect of exercise intensity on information processing speed, and a significant quadratic trend for exercise intensity on executive function. Thus, there is a dose-response relationship between the intensity of resistance exercise and cognitive performance such that high-intensity exercise benefits speed of processing, but moderate intensity exercise is most beneficial for executive function.
authors.affiliation: Graduate Institute of Coaching Sciences, National Taiwan Sport University, Taoyuan, Taiwan (Republic of China).
authors.forename: Yu-Kai
authors.initials: YK
authors.lastname: Chang
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Etnier
mesh_terms: D000328:Adult; D000339:Affect; D001143:Arousal; D003071:Cognition; D056344:Executive Function; D015444:Exercise / Q000523:psychology*; D005260:Female; D006339:Heart Rate; D006801:Humans; D008182:Luria-Nebraska Neuropsychological Battery; D008297:Male; D005082:Physical Exertion; D011340:Problem Solving; D055070:Resistance Training; D012691:Serial Learning; D057190:Stroop Test; D055815:Young Adult