Effect Of Carbohydrate-Peptide Supplementation On Muscle Damage Induced By Resistance Exercise

The purpose of the present investigation was to examine the effect of carbohydrate with marine bioactive peptide supplementation (carbohydrate-peptide supplementation)on responses to resistance training of one bout and 3 weeks.The purpose of the present investigation was to examine the effect of carbohydrate with marine bioactive peptide supplementation (carbohydrate-peptide supplementation)on responses to resistance training of one bout and 3 weeks.Part I:30 male athletes of boxing and free combat events consumed a carbohydrate supplementation(CHO),a carbohydrate-peptide supplementation of high dose (HCP, peptide:carbohydrate=0.5:1)or a carbohydrate-peptide of low dose(CP, peptide:carbohydrate=0.25:1) prior,halfway through and immediately following a resistance exercise bout.Blood glugose was significantly elevated in the HCP group compared to the CHO group at 1 hour postexercise(p<0.05).Insulin was significantly elevated in the HCP group at 1 hour postexercise compared with which immediately before exercise(p<0.05).Creatine kinase was significantly reduced in the HCP, CP group at 1 hour and 6 hour postexercise compared with CHO group(p<0.05).Lactate dehydrogenase levels in the HCP, CHO group significantly elevated at immediately postexercise compared with which immediately before exercise(p<0.05). Blood urea levels were significantly elevated in the CHO group at 6 hours postexercise compared to the HCP group(p<0.05).The results indicate that compared with carbohydrate supplementation, carbohydrate-peptide supplementation prior, halfway through and immediately following a resistance exercise bout appeared to has a better effect on maintaining higher blood glucose, insulin level,reducing creatine kinase,lactate dehydrogenase levels,muscle protein degeneration and reducing cortisol after the exercise,and carbohydrate-peptide supplementation of high dose seems to has be more effective. These suggest that carbohydrate-peptide supplementation would reduce muscle damage caused by a bout of resistance exercise and promote the recovery. Partâ…¡:16 male weight lifter were randomly divided into a carbohydrate-peptide group and a carbohydrate group in a cross-over experimental design, and consumed carbohydrate-peptide supplementation (peptide:carbohydrate=0.25:1)and a carbohydrate supplementation prior, halfway through and immediately following every, bout of resistance exercise. The performance of both groups was significantly increased compared with which 3 weeks ago (p<0.05),with no difference between groups. Creatine kinase, blood urea and myoglobin levels in the carbohydrate-peptide group were significantly elevated compared with which 3 weeks ago(p<0.05),creatine kinase and myoglobin levels were significantly elevated in the carbohydrate-peptide group compared with carbohydrate supplementation group after 3 weeks(p<0.05).Total testosterone and the T/C was significantly elevated in the carbohydrate-peptide group compared with which 3 weeks ago(p<0.05), Cortisol was significantly blunted in the carbohydrate-peptide group compared with which 3 weeks ago(p<0.05).The carbohydrate-peptide supplementation during a 3-week resistance exercise period appeared to reduce biochemical parameters referred to muscle damage,blood cortisol and muscle protein degeneration, increace total testosterone and the T/C in the next morning of an exercise, which indicate that the carbohydrate-peptide supplementation could reduce muscle damage caused by a bout of resistance exercise and promote the recovery.