Body weight changes in child and adolescent athletes during a triathlon competition
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| Autores: | , , , |
|---|---|
| Formato: | artículo preliminar |
| Fecha de Publicación: | 2012 |
| Descripción: | We examined young athletes during a triathlon performed in a hot climate. Complete or partial data were available for 95 athletes competing in the National Triathlon Championship in Costa Rica. Mean±SD for age and body weight (BW) were 13.1±2.5y and 46.3±11.5kg, respectively. Race requirements included: 500m swimming, 15km cycling, 3.5km running for juniors (9-13y); 800m swimming, 30km cycling, 8km running for seniors (14-17y). WBGT on race day was >31˚C. BW recorded pre- and post-race was available for 92 athletes and performance data were available for 83 of these. Information regarding symptoms experienced during the race was available for 95 athletes. Change in BW (%ΔBW) was calculated and ranged from +0.6% to –2.4% for junior boys (–1.2±0.9%), +0.7% to –2.5% for junior girls (–1.3±0.9%), 0% to –2.8% for senior girls (–1.3±0.9%), and +0.6% to –4.5% for senior boys (–1.7±1.1%). Eighteen participants reported no medical symptoms. Of 77 participants who reported symptoms, 42.9% reported exhaustion/fatigue, 36.4% reported side stitch/cramp, and 23.4% reported dizziness. Participants reporting no medical symptoms achieved almost identical (P=0.99) %ΔBW as those reporting at least one symptom. %ΔBW was more negative (P=0.005) in participants who reported dizziness” (-1.9%ΔBW) compared with those who did not (-1.4%ΔBW). %ΔBW was associated with performance in junior girls (r=0.47, P=0.02) and senior boys (r=0.51, P=0.01), with a trend in junior boys (r=0.41, P=0.053) but not in senior girls (r=0.004, P=0.99). Young athletes participating in a triathlon in a hot climate can tolerate mild to moderate levels of dehydration, without detrimental effects to self-assessed health. |
| País: | Kérwá |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| OAI Identifier: | oai:https://www.kerwa.ucr.ac.cr:10669/666 |
| Acceso en línea: | http://dx.doi.org/10.1007/s00421-012-2431-8 https://hdl.handle.net/10669/666 |
| Access Level: | acceso abierto |
| Palabra clave: | Heat stress Thermoregulation Hydration Estrés térmico Termorregulación Hidratación Triatlón infantil |