Oral / Poster Presentation File
-Department of Sport Sciences, Nahavand Higher Education Complex, BU-Ali Sina Univesity, Hamedan, Iran
Methods: Sixteen healthy men (age; 33.00 ± 2.8 years, height; 182.3 ± 5.52 cm, weight; 89.40 ± 6.08 kg) participated in this study voluntarily. They were randomly divided into 2 groups; whey protein supplement group (n=8) and placebo group (n=8). The subjects performed the maximal eccentric protocol (110 maximal eccentric contraction of arm flexors) using both hands. Maximal voluntary isometric contraction in biceps curl, visual analogue scale for measurement of muscle soreness and serum levels of creatine kinase a sign of muscle damage were measured before, immediately, 24, 48 hours after exercise. Each subjects consumed 1.5 grams per kilogram of body weight whey protein supplement and placebo immediately after exercise. Data were analyzed using the Analysis of variance (ANOVA) with Repeated Measures (group ₓ time) and Independent t-test. The statistical significance level adopted was P≤ 0.05
Results: The feeling of muscle soreness and serum levels of creatine kinase in whey protein supplement group was significantly lower than the placebo group in all post-exercise stages except immediately after exercise (P≤ 0.05).
Conclusion: The present study showed that whey protein supplement can improve the symptoms of muscle damage and reduce the muscle pain that occurs after exercise.
