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- Title
Hydration Status, Sweat Rates, and Rehydration Education of Youth Football Campers.
- Authors
McDermott, Brendon P.; Casa, Douglas J.; Yeargin, Susan W.; Ganio, Matthew S.; Lopez, Rebecca M.; Mooradian, Elizabeth A.
- Abstract
Context: Previous field research has not identified sweat rates (SR), fluid consumption (FC), or the efficacy of an educational intervention (EI) for youth during football camp. Objective: To measure hydration status and rehydration performance and examine EI using these data. Design: Observational with EI randomized comparison. Participants: Thirty-three boys (mean ± SD: 12 ± 2 y, 52.9 ± 13.6 kg, 156 ± 12 cm) volunteered during a 5-d camp with 3 (~2-h) sessions per day (WBGT: 25.6 ± 0.5°C). Main Outcome Measures: Hydration status, SR, and FC. Results: Urine osmolality averaged 796 ± 293 mOsm/L for days 2-5. Game SR (1.30 ± 0.57 L/h) was significantly greater than practice SR (0.65 ± 0.35 L/h; P = .002). Subjects dehydrated during free time but matched fluid losses with FC (0.76 ± 0.29 L/h) during football activities. Conclusions: Subjects arrived at camp hypohydrated and maintained this condition. They matched FC and SR during, but dehydrated when not playing, football. This may impair recovery and subsequent performance. Hydration EI seemed to have a positive influence on hydration practices.
- Subjects
HYDRATION; PERSPIRATION; BODY fluids; SPORTS camps; ATHLETES; EDUCATIONAL intervention; DEHYDRATION; WATER-electrolyte imbalances; PREVENTIVE medicine
- Publication
Journal of Sport Rehabilitation, 2009, Vol 18, Issue 4, p535
- ISSN
1056-6716
- Publication type
Article
- DOI
10.1123/jsr.18.4.535