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Effect of WheyProtein Hydrolysateon Performance andRecovery of Top-ClassOrienteering Runners Mette HansenJens BangsboJørgen Jensen2014 год

Effect of Whey Protein Hydrolysate on Performance and Recovery of Top-Class Orienteering Runners
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Аннотация: This trial aimed to examine the effect of whey protein hydrolysate intake before and after exercise sessions on endurance performance and recovery in elite orienteers during a training camp. Eighteen elite orienteers participated in a randomized controlled intervention trial during a 1-week training camp (13 exercise sessions). Half of the runners (PRO-CHO) ingested a protein drink before (0.3 g kg −1 ) and a protein-carbohydrate drink after (0.3 g protein kg −1 and 1 g carbohydrate kg −1 ) each exercise session. The others ingested energy and timematched carbohydrate drinks (CHO). A 4-km run-test with 20 control points was performed before and on the last day of the intervention. Blood and saliva were obtained in the mornings, before and after run-tests, and after the last training session. During the intervention, questionnaires were fulfilled regarding psychological sense of performance capacity and motivation. PRO-CHO and not CHO improved performance in the 4-km run-test (interaction p < .05). An increase in serum creatine kinase was observed during the week, which was greater in CHO than PRO-CHO (interaction p < .01). Lactate dehydrogenase ( p < .001) and cortisol ( p = .057) increased during the week, but the change did not differ between groups. Reduction in sense of performance capacity during the intervention was greater in CHO ( p < .05) than PRO-CHO. In conclusion, ingestion of whey protein hydrolysate before and after each exercise session improves performance and reduces markers of muscle damage during a strenuous 1-week training camp. The results indicate that protein supplementation in conjunction with each exercise session facilitates the recovery from strenuous training in elite orienteers.
Год издания: 2014
Авторы: Mette Hansen, Jens Bangsbo, Jørgen Jensen, Bo Martin Bibby, Klavs Madsen
Издательство: Human Kinetics
Источник: International Journal of Sport Nutrition and Exercise Metabolism
Ключевые слова: Muscle metabolism and nutrition, Sports Performance and Training, Exercise and Physiological Responses
Другие ссылки: International Journal of Sport Nutrition and Exercise Metabolism (HTML)
PubMed (HTML)