title: Effects of delayed onset muscle soreness on selected physiological responses to submaximal running.
abstract: This study examined the effects of delayed-onset muscle soreness (DOMS) on selected physiological responses to submaximal exercise. Seven male and four female subjects (Ss) aged 21-37 years completed two submaximal running sessions at an individualized pace corresponding to a blood lactate concentration (bLa) of approximately 2.5 mmol x L(-1). Following the first session (T1), Ss performed a series of lower extremity resistance exercises designed to induce DOMS. Subjects were then retested (T2) 24-30 hours later, during which time all Ss experienced DOMS. Oxygen uptake, heart rate (HR), respiratory exchange ratio, rating of perceived exertion (RPE), and bLa were measured every 6 minutes. Significant trial effects (p < 0.05) were observed for HR and RPE. HR was significantly higher during T1 at minutes 6 and 12 (p < 0.05), and RPE values were significantly higher at T2 during all recording periods (p < 0.05). Results from this study suggest that DOMS does not affect submaximal oxygen uptake. However, DOMS does appear to affect one's perception of effort.
authors.affiliation: Department of Kinesiology and Physical Education, California State University, Long Beach, Long Beach, California 90840, USA.
authors.forename: Kristen E
authors.initials: KE
authors.lastname: Scott
authors.forename: Ralph
authors.initials: R
authors.lastname: Rozenek
authors.forename: Albert C
authors.initials: AC
authors.lastname: Russo
authors.forename: Jill A
authors.initials: JA
authors.lastname: Crussemeyer
authors.forename: Michael G
authors.initials: MG
authors.lastname: Lacourse
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000503:physiopathology*; D010101:Oxygen Consumption; D010146:Pain / Q000503:physiopathology*; D005082:Physical Exertion / Q000502:physiology; D012420:Running / Q000502:physiology*; D013997:Time Factors