PMID- 18272930 OWN - NLM STAT- MEDLINE DCOM- 20080414 LR - 20191110 IS - 1526-484X (Print) IS - 1526-484X (Linking) VI - 18 IP - 1 DP - 2008 Feb TI - Carbohydrate-protein drinks do not enhance recovery from exercise-induced muscle injury. PG - 1-18 AB - This study examined the effects of carbohydrate (CHO), carbohydrate-protein (CHO+PRO), or placebo (PLA) beverages on recovery from novel eccentric exercise. Female participants performed 30 min of downhill treadmill running (-12% grade, 8.0 mph), followed by consumption of a CHO, CHO+PRO, or PLA beverage immediately, 30, and 60 min after exercise. CHO and CHO+PRO groups (n=6 per group) consumed 1.2 g x kg body weight(-1) x hr(-1) CHO, with the CHO+PRO group consuming an additional 0.3 g x kg body weight(-1) x hr(-1) PRO. The PLA group (n=6) received an isovolumetric noncaloric beverage. Maximal isometric quadriceps strength (QUAD), lower extremity muscle soreness (SOR), and serum creatine kinase (CK) were assessed preinjury (PRE) and immediately and 1, 2, and 3 d postinjury to assess exercise-induced muscle injury and rate of recovery. There was no effect of treatment on recovery of QUAD (p= .21), SOR (p= .56), or CK (p= .59). In all groups, QUAD was reduced compared with PRE by 20.6%+/-1.5%, 17.2%+/-2.3%, and 11.3%+/-2.3% immediately, 1, and 2 d postinjury, respectively (p< .05). SOR peaked at 2 d postinjury (PRE vs. 2 d, 3.1+/-1.0 vs. 54.0+/-4.8 mm, p< .01), and serum CK peaked 1 d postinjury (PRE vs. 1 d, 138+/-47 vs. 757+/-144 U/L, p< .01). In conclusion, consuming a CHO+PRO or CHO beverage immediately after novel eccentric exercise failed to enhance recovery of exercise-induced muscle injury differently than what was observed with a PLA drink. FAU - Green, Michael S AU - Green MS AD - Kinesiology and Health Dept. Georgia State University, Atlanta, GA 30302-3975, USA. FAU - Corona, Benjamin T AU - Corona BT FAU - Doyle, J Andrew AU - Doyle JA FAU - Ingalls, Christopher P AU - Ingalls CP LA - eng PT - Journal Article PT - Randomized Controlled Trial PL - United States TA - Int J Sport Nutr Exerc Metab JT - International journal of sport nutrition and exercise metabolism JID - 100939812 RN - 0 (Dietary Carbohydrates) RN - 0 (Dietary Proteins) RN - 0 (Placebos) RN - EC 2.7.3.2 (Creatine Kinase) SB - IM MH - Adult MH - *Beverages MH - Creatine Kinase/blood MH - Cross-Over Studies MH - Dietary Carbohydrates/*administration & dosage MH - Dietary Proteins/*administration & dosage MH - Double-Blind Method MH - Exercise/*physiology MH - Female MH - Humans MH - Muscle Strength MH - Muscle, Skeletal/*drug effects/injuries/metabolism MH - Placebos MH - Running/physiology EDAT- 2008/02/15 09:00 MHDA- 2008/04/15 09:00 CRDT- 2008/02/15 09:00 PHST- 2008/02/15 09:00 [pubmed] PHST- 2008/04/15 09:00 [medline] PHST- 2008/02/15 09:00 [entrez] AID - 10.1123/ijsnem.18.1.1 [doi] PST - ppublish SO - Int J Sport Nutr Exerc Metab. 2008 Feb;18(1):1-18. doi: 10.1123/ijsnem.18.1.1.