Date of Award
Health, Exercise Science, and Recreation Management
Paul Loprinzi & Matthew Jessee
PURPOSE: To investigate the effects of chronic alcohol consumption on exercise-induced muscle damage of the knee extensors in young men. METHODS: Twenty-one males (age 21.9 ± 1.1 yr; weight 183.4 ± 27.6 lbs; height 174.0 ± 13.1 cm) performed 100 maximal eccentric contractions at 30°/sec of the knee extensors using their non-dominant leg. The isometric and isokinetic muscle strengths (60°/sec and 180°/sec) were measured pre-exercise and immediately, 24 h, 48 h, 72 h, 96 h, and 120 h post-exercise. Muscle soreness and plasma creatine kinase (CK) activity were measured pre-exercise and 24 h, 48 h, 72 h, 96 h, and 120 h post-exercise. Data were analyzed using two-way repeated-measures ANOVA to determine the main effects of time (exercise), group (non-drinker vs. frequent drinker), and their interaction terms. RESULTS: There were significant main effects of time for isometric strength (F6, 114 = 8.11, P < 0.001), isokinetic strength at both 60°/sec ( F6, 114 = 11.02, P < 0.001) and 180°/sec (F6, 114 = 9.88, P < 0.001), muscle soreness (F5, 95 = 26.64, P < 0.001), and plasma CK activity (F5, 70 = 5.15, P < 0.001). There were no significant effects of group or interaction for any of the variables. CONCLUSION: There was not an evident effect of chronic alcohol consumption on exercise-induced muscle damage in young men. This may likely be due to the small sample size, the relatively small magnitude of muscle damage, the time of alcohol consumption relative to the bout of exercise, and the between-subjects study design.
Hamilton, Emma and Hilliard, Grant, "The Effect of Chronic Alcohol Consumption on Exercise-Induced Muscle Damage in Young Men" (2021). Honors Theses. 1601.
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