PMID- 27097042 OWN - NLM STAT- MEDLINE DCOM- 20170602 LR - 20170602 IS - 1543-2742 (Electronic) IS - 1526-484X (Linking) VI - 26 IP - 6 DP - 2016 Dec TI - Influence of Post-Exercise Carbohydrate-Protein Ingestion on Muscle Glycogen Metabolism in Recovery and Subsequent Running Exercise. PG - 572-580 LID - 10.1123/ijsnem.2016-0021 [doi] AB - We examined whether carbohydrate-protein ingestion influences muscle glycogen metabolism during short-term recovery from exhaustive treadmill running and subsequent exercise. Six endurance-trained individuals underwent two trials in a randomized double-blind design, each involving an initial run-to-exhaustion at 70% VO(2max) (Run-1) followed by 4-h recovery (REC) and subsequent run-to-exhaustion at 70% VO(2max) (Run-2). Carbohydrate-protein (CHO-P; 0.8 g carbohydrate.kg body mass [BM(-1)].h(-1) plus 0.4 g protein.kg BM(-1).h(-1)) or isocaloric carbohydrate (CHO; 1.2 g carbohydrate.kg BM(-1).h(-1)) beverages were ingested at 30-min intervals during recovery. Muscle biopsies were taken upon cessation of Run-1, postrecovery and fatigue in Run-2. Time-to-exhaustion in Run-1 was similar with CHO and CHO-P (81 +/- 17 and 84 +/- 19 min, respectively). Muscle glycogen concentrations were similar between treatments after Run-1 (99 +/- 3 mmol.kg dry mass [dm(-1)]). During REC, muscle glycogen concentrations increased to 252 +/- 45 mmol.kg dm(-1) in CHO and 266 +/- 30 mmol.kg dm(-1) in CHO-P (p = .44). Muscle glycogen degradation during Run-2 was similar between trials (3.3 +/- 1.4 versus 3.5 +/- 1.9 mmol.kg dm(-1).min(-1) in CHO and CHO-P, respectively) and no differences were observed at the respective points of exhaustion (93 +/- 21 versus 100 +/- 11 mmol.kg dm(-1); CHO and CHO-P, respectively). Similarly, time-to-exhaustion was not different between treatments in Run-2 (51 +/- 13 and 49 +/- 15 min in CHO and CHO-P, respectively). Carbohydrate-protein ingestion equally accelerates muscle glycogen resynthesis during short-term recovery from exhaustive running as when 1.2 g carbohydrate.kg BM(-1).h(-1) are ingested. The addition of protein did not alter muscle glycogen utilization or time to fatigue during repeated exhaustive running. FAU - Alghannam, Abdullah F AU - Alghannam AF FAU - Jedrzejewski, Dawid AU - Jedrzejewski D FAU - Bilzon, James AU - Bilzon J FAU - Thompson, Dylan AU - Thompson D FAU - Tsintzas, Kostas AU - Tsintzas K FAU - Betts, James A AU - Betts JA LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20160824 PL - United States TA - Int J Sport Nutr Exerc Metab JT - International journal of sport nutrition and exercise metabolism JID - 100939812 RN - 0 (Blood Glucose) RN - 0 (Dietary Carbohydrates) RN - 0 (Dietary Proteins) RN - 0 (Fatty Acids, Nonesterified) RN - 0 (Insulin) RN - 33X04XA5AT (Lactic Acid) RN - 8W8T17847W (Urea) RN - 9005-79-2 (Glycogen) SB - IM MH - Adolescent MH - Adult MH - Blood Glucose/metabolism MH - Body Mass Index MH - Body Weight MH - Dietary Carbohydrates/*administration & dosage MH - Dietary Proteins/*administration & dosage MH - Double-Blind Method MH - Exercise Test MH - Fatigue/prevention & control MH - Fatty Acids, Nonesterified/blood MH - Female MH - Glycogen/metabolism MH - Glycogenolysis/drug effects MH - Humans MH - Insulin/blood MH - Lactic Acid/blood MH - Male MH - Muscle, Skeletal/*drug effects/metabolism MH - Oxygen Consumption MH - Physical Endurance MH - *Running MH - *Sports Nutritional Physiological Phenomena MH - Urea/blood MH - Urinalysis MH - Young Adult OTO - NOTNLM OT - amino acids OT - metabolism OT - nutrition OT - performance OT - post-exercise EDAT- 2016/04/21 06:00 MHDA- 2017/06/03 06:00 CRDT- 2016/04/21 06:00 PHST- 2016/04/21 06:00 [pubmed] PHST- 2017/06/03 06:00 [medline] PHST- 2016/04/21 06:00 [entrez] AID - 2016-0021 [pii] AID - 10.1123/ijsnem.2016-0021 [doi] PST - ppublish SO - Int J Sport Nutr Exerc Metab. 2016 Dec;26(6):572-580. doi: 10.1123/ijsnem.2016-0021. Epub 2016 Aug 24.