PMID- 17507739 OWN - NLM STAT- MEDLINE DCOM- 20070614 LR - 20191110 IS - 1526-484X (Print) IS - 1526-484X (Linking) VI - 17 IP - 2 DP - 2007 Apr TI - Preexercise carbohydrate consumption and repeated anaerobic performance in pre- and early-pubertal boys. PG - 140-51 AB - This study examined the effect of preexercise carbohydrate (CHO) feeding on performance on a Wingate anaerobic test (WAnT) in 11 boys (10.2 +/- 1.3 y old). Four WAnTs with 2 min recovery were performed 30 min after consuming a CHO (1 g CHO/kg) or placebo drink. Peak power (PP) and mean power (MP) were similar between trials. PP ranged from 241.1 +/- 82.2 to 223.1 +/- 57.9 W with carbohydrate and from 238.2 +/- 76.1 to 223.4 +/- 52.3 W with placebo. MP ranged from 176.3 +/- 58.4 to 151.1 +/- 37.5 W with carbohydrate versus 178.0 +/- 45.8 to 159.1 +/- 32.7 W with placebo. Preexercise glucose was significantly higher in CHO versus placebo (7.0 +/- 1.0 vs. 5.5 +/- 0.5 mmol/L), but postexercise values were not different. Blood lactate was similar between trials but increased over time. This study found that the ingestion of a CHO solution before exercise did not influence power output during repeated performances of the WAnT. FAU - Marjerrison, Andrea D AU - Marjerrison AD AD - Bethune College, York University, Toronto, ON, Canada. FAU - Lee, Jonah D AU - Lee JD FAU - Mahon, Anthony D AU - Mahon AD LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't 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 - 33X04XA5AT (Lactic Acid) SB - IM MH - Beverages MH - Blood Glucose/*metabolism MH - Child MH - Cross-Over Studies MH - Dietary Carbohydrates/*administration & dosage/metabolism MH - Exercise/*physiology MH - Heart Rate/physiology MH - Humans MH - Lactic Acid/*blood MH - Male MH - Oxygen Consumption MH - Physical Endurance/drug effects/*physiology EDAT- 2007/05/18 09:00 MHDA- 2007/06/15 09:00 CRDT- 2007/05/18 09:00 PHST- 2007/05/18 09:00 [pubmed] PHST- 2007/06/15 09:00 [medline] PHST- 2007/05/18 09:00 [entrez] AID - 10.1123/ijsnem.17.2.140 [doi] PST - ppublish SO - Int J Sport Nutr Exerc Metab. 2007 Apr;17(2):140-51. doi: 10.1123/ijsnem.17.2.140.