The effect of repeated bouts of eccentric exercise on some of Biochemical markers of Delayed onset muscle soreness

\nObjectives: The purpose of study was to the investigate effect of repeated bouts of eccentric muscle exercise on some of biochemical markers (Total cholesterol and Creatine Kinase ) of delayed onset muscle soreness.\nMethods: thirty college males (with mean age of 21.2±3.8 years, body mass Index of 22.5±1.4 Kg) were selected and divided into two groups randomly. Both groups performed five sets (10 repetitions per set) of the eccentric contractions, at 85% of one repetition maximum \n(1- RM), experimental group repeated this exercise 48h later.\nCreatine kinase and Total cholesterol were recorded before and after 24, 48, 72, 96(hr) after eccentric contractions.\nResults: The repeated bout of eccentric exercise do not show any effects on cholesterol , Creatine kinase values in experimental group(p>0.05).\nConclusion: The results of this study suggest that the repeated bout of eccentric exercise produces an adaptation such that the muscle is more resistant to damage from a subsequent bout of exercise.\n\nKeywords: Eccentric exercise, Delayed onset muscle soreness, Total cholesterol and Creatine\nKinase.\n