Abstract
Carbohydrate (CHO) consumption before anaerobic exercise was studied in 13 adolescent boys (15.2 ± 0.9 yrs). A within subjects design was employed where subjects consumed a 22% CHO or volume-matched placebo (PL) beverage 30-min before anaerobic exercise on two separate days. Exercise consisted of a Wingate Anaerobic Test (WAnT), ten by 10-s-sprints, and a second WAnT. Fatigue index and peak power (PP) were similar while mean power (MP) was higher (p <.025) in CHO trial; however this difference was ascribed to initial WAnT performance. PP and MP for the 10-s sprints were similar between trials. Intravenous blood glucose and insulin concentrations were higher (p <.05) in the CHO trial while lactate and catecholamine concentrations were similar. Improved performance on a single WAnT was apparent with CHO consumption before exercise; however, this strategy did not attenuate fatigue over time in adolescent boys.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 344-354 |
| Number of pages | 11 |
| Journal | Pediatric Exercise Science |
| Volume | 23 |
| Issue number | 3 |
| DOIs | |
| State | Published - Aug 2011 |
| Externally published | Yes |
ASJC Scopus subject areas
- Pediatrics, Perinatology, and Child Health
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation