PMID- 29244956 OWN - NLM STAT- MEDLINE DCOM- 20181029 LR - 20181029 IS - 1715-5320 (Electronic) IS - 1715-5312 (Linking) VI - 43 IP - 5 DP - 2018 May TI - Effects of carbohydrate and branched-chain amino acid beverage ingestion during acute upper body resistance exercise on performance and postexercise hormone response. PG - 504-509 LID - 10.1139/apnm-2017-0563 [doi] AB - The purpose of this investigation was to examine the individual and combined effects of ingesting carbohydrates (CHO) and branched-chain amino acids (BCAA) during high-volume upper body resistance exercise (RE) on markers of catabolism and performance. Thirteen resistance-trained males completed 4 experimental trials with supplementation, ingesting beverages containing CHO, BCAA, CHO+BCAA, or placebo (PLA) in a randomized, double-blind design. The beverages were ingested in 118-mL servings 6 times during an approximately 60-min RE session consisting of bench press, bent-over row, incline press, and close-grip row. Each RE was performed with 5 sets of repetitions at 65% 1-repetition maximum until volitional fatigue. Blood samples were collected at baseline, immediately postexercise, and 60 min postexercise to assess glucose and insulin. Cortisol was assessed immediately and at 60 min postexercise. No significant performance benefits were observed for any RE. CHO+BCAA (152.4 +/- 71.4 ng/mL) resulted in the lowest cortisol levels, which was lower than BCAA and PLA (193.7 +/- 88.5, 182.8 +/- 67.5 ng/mL, p < 0.05), but not different from CHO (165 +/- 76.5 ng/mL, p = 0.342). Postexercise insulin concentrations were significantly higher with CHO (4.79 +/- 3.4 mU/L) compared with BCAA and PLA (3.7 +/- 2.0, 3.5 +/- 1.8 mU/L, p < 0.05), but not different from CHO+BCAA (4.3 +/- 2.5 mU/L, p = 0.339). There was no treatment effect for glucose, but glucose significantly increased from baseline to immediately postexercise and significantly decreased at 60 min postexercise. Ingesting beverages containing CHO with or without BCAA during upper body resistance exercise may promote a more favorable postexercise less catabolic environment. FAU - Smith, JohnEric W AU - Smith JW AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. FAU - Krings, Ben M AU - Krings BM AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. FAU - Shepherd, Brandon D AU - Shepherd BD AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. FAU - Waldman, Hunter S AU - Waldman HS AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. FAU - Basham, Steven A AU - Basham SA AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. FAU - McAllister, Matthew J AU - McAllister MJ AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. AD - Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20171215 PL - Canada TA - Appl Physiol Nutr Metab JT - Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme JID - 101264333 RN - 0 (Amino Acids, Branched-Chain) RN - 0 (Blood Glucose) RN - 0 (Dietary Carbohydrates) RN - 0 (Dietary Fats) RN - 0 (Dietary Proteins) RN - 0 (Insulin) RN - WI4X0X7BPJ (Hydrocortisone) SB - IM MH - Adult MH - Amino Acids, Branched-Chain/*administration & dosage MH - Beverages MH - Blood Glucose/metabolism MH - Cross-Over Studies MH - Diet MH - Dietary Carbohydrates/*administration & dosage MH - Dietary Fats/administration & dosage MH - Dietary Proteins/administration & dosage MH - Dietary Supplements MH - Double-Blind Method MH - Humans MH - Hydrocortisone/*blood MH - Insulin/*blood MH - Male MH - Muscle, Skeletal/physiology MH - Physical Endurance MH - *Resistance Training MH - Young Adult OTO - NOTNLM OT - agents ergogenes OT - entrainement contre resistance OT - ergogenic aids OT - exercice d'intensite elevee OT - glucose OT - high-intensity exercise OT - hypertrophie musculaire OT - muscle hypertrophy OT - resistance training EDAT- 2017/12/16 06:00 MHDA- 2018/10/30 06:00 CRDT- 2017/12/16 06:00 PHST- 2017/12/16 06:00 [pubmed] PHST- 2018/10/30 06:00 [medline] PHST- 2017/12/16 06:00 [entrez] AID - 10.1139/apnm-2017-0563 [doi] PST - ppublish SO - Appl Physiol Nutr Metab. 2018 May;43(5):504-509. doi: 10.1139/apnm-2017-0563. Epub 2017 Dec 15.