title: Effects of carbohydrate refeeding on physiological responses and psychological and physical performance following acute weight reduction in collegiate wrestlers.
abstract: The purpose of this study was to determine the effects of carbohydrate refeeding on intermittent sprint exercise, blood lactate response, and mood following a typical weight-reduction program practiced by college wrestlers. Fifteen collegiate wrestlers from the University of Northern Iowa completed 3 trials of intermittent arm cranking and a mood inventory prior to weigh-ins (baseline), after weigh-ins, and 1 hour postconsumption of either 1.5 g carbohydrate (CHO)/kg body mass carbohydrate beverage (25% solution) or placebo taken within 1 hour after weigh-ins. Blood lactate responses were determined with each trial. Repeated measures analysis of variance indicated no significant interaction between group and trial for total work (p = 0.08), blood lactate (p = 0.29), positive mood (p = 0.49), or negative mood (p = 0.78). Simple effects analysis indicated a significant difference in lactate response between trials (p = 0.002); however, no difference for work (p = 0.75), positive mood (p = 0.13), or negative mood (p = 0.08). The results of this study suggest that intermittent sprint exercise, blood lactate response, and mood were not positively affected by ingestion of CHOs following an acute weight-reduction period.
authors.affiliation: Exercise Physiology Laboratory, School of Health, Physical Education, and Leisure Services, University of Northern Iowa, Cedar Falls, Iowa, USA. kevin.finn@uni.edu
authors.forename: Kevin J
authors.initials: KJ
authors.lastname: Finn
authors.forename: Forrest A
authors.initials: FA
authors.lastname: Dolgener
authors.forename: Richard B
authors.initials: RB
authors.lastname: Williams
mesh_terms: D000293:Adolescent; D000328:Adult; D000339:Affect; D015308:Anaerobic Threshold; D000704:Analysis of Variance; D001628:Beverages; D004040:Dietary Carbohydrates / Q000008:administration & dosage*; D005080:Exercise Test; D006801:Humans; D015431:Weight Loss; D014952:Wrestling / Q000502:physiology / Q000523:psychology
chemical_list: D004040:Dietary Carbohydrates