Rehidratación post-ejercicio con agua de coco: ¿Igual o más efectiva que una bebida deportiva?
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Fecha
2011
Autores
Pérez Idárraga, Alexandra
Aragón Vargas, Luis Fernando
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Resumen
Objetivo: comparar la efectividad rehidratante del agua de coco fresca, con el agua embotellada y una bebida deportiva. Metodología: once participantes de 22,0 ± 1,9 años y 65,6 ± 13,0 kg de masa corporal (promedio ± D.E), asistieron al laboratorio en tres ocasiones, separadas entre sí por una semana. En cada sesión se deshidrataron por ejercicio en el calor hasta perder 1,84 ± 0,2% de la masa corporal. Luego fueron rehidratados en una hora, con agua comercial embotellada (AE), una bebida deportiva (BD) o agua de coco (AC), utilizando un volumen equivalente al 120% del peso perdido. Se evaluaron las sensaciones percibidas relacionadas con la tolerancia y la aceptación de las bebidas. Se recolectó la orina eliminada durante tres horas post-rehidratación. Resultados: Hubo interacción entre las bebidas y el tiempo sobre la orina excretada (p=0,003), siendo el AE estadísticamente diferente al AC y la BD a los 30 y 60 min post-rehidratación (p<0,05). El volumen total de orina fue mayor con agua embotellada (625 ± 183 mL), en comparación con AC y BD (390 ± 73 mL y 416 ± 200 mL, respectivamente, p<0,002); AC y BD no fueron distintas entre sí (p>0,05). Esto produjo porcentajes de conservación de líquido diferentes para AE (56%),con respecto a BD (71%) y AC (71%) (p<0,001). No hubo interacción entre las bebidas y el tiempo sobre las sensaciones percibidas de tolerancia (p>0,05). La percepción de la dulzura fue menor para AE (p= 0,024). BD obtuvo mejores puntajes de sabor y aceptación general (p<0,05). Conclusiones: el agua de coco fresca resulta tan efectiva como una bebida deportiva para conservar el líquido consumido, teniendo una buena tolerancia y aceptación. Podría ser usada como una bebida rehidratante, cuando la persona la tenga disponible y le agrade su sabor.
Objective: To compare the effectiveness of fresh coconut water as a rehydration beverage with bottled water and a sports drink. Method: eleven participants, 22.0±1.9 years of age and 65.6±13.0 kg body mass (average ± S.D.), reported to the laboratory on three separate occasions, each one week apart. Each time they exercised in the heat until they were dehydrated by 1.84 ± 0.2% of initial body mass. They were then rehydrated for one hour with commercial bottled water (BW), a sports drink (SD), or coconut water (CW), using a volume equivalent to 120% of weight loss. Perceived beverage acceptance and tolerance ratings were evaluated, and urine was collected over three hours following rehydration. Results: Urine volumes showed an interaction between beverage and time (p=0.003); BW was statistically different from CW and SD, 30 and 60 minutes after rehydration (p<0.05). Total urine volume was higher for BW (625 ± 183 mL) compared with both CW and SD (390 ± 73 mL and 416 ± 200 mL, respectively, p<0.002); CW and SD were not different from each other (p>0.05). This resulted in a different fluid conservation percentage for BW (56%) compared with CW (71%) and SD (71%) (p<0.001). Perceived tolerance ratings showed no interaction between beverage and time (p>0.05). Perceived sweetness was lower for BW (p= 0.024); SD had higher scores for flavor and overall acceptance (p<0.05). Conclusions: fresh coconut water is as effective as a sports drink in terms of fluid retained following consumption, and it has good tolerance and acceptance; it could be used for rehydration provided it is accessible to the individual and the person finds the flavor pleasing.
Objective: To compare the effectiveness of fresh coconut water as a rehydration beverage with bottled water and a sports drink. Method: eleven participants, 22.0±1.9 years of age and 65.6±13.0 kg body mass (average ± S.D.), reported to the laboratory on three separate occasions, each one week apart. Each time they exercised in the heat until they were dehydrated by 1.84 ± 0.2% of initial body mass. They were then rehydrated for one hour with commercial bottled water (BW), a sports drink (SD), or coconut water (CW), using a volume equivalent to 120% of weight loss. Perceived beverage acceptance and tolerance ratings were evaluated, and urine was collected over three hours following rehydration. Results: Urine volumes showed an interaction between beverage and time (p=0.003); BW was statistically different from CW and SD, 30 and 60 minutes after rehydration (p<0.05). Total urine volume was higher for BW (625 ± 183 mL) compared with both CW and SD (390 ± 73 mL and 416 ± 200 mL, respectively, p<0.002); CW and SD were not different from each other (p>0.05). This resulted in a different fluid conservation percentage for BW (56%) compared with CW (71%) and SD (71%) (p<0.001). Perceived tolerance ratings showed no interaction between beverage and time (p>0.05). Perceived sweetness was lower for BW (p= 0.024); SD had higher scores for flavor and overall acceptance (p<0.05). Conclusions: fresh coconut water is as effective as a sports drink in terms of fluid retained following consumption, and it has good tolerance and acceptance; it could be used for rehydration provided it is accessible to the individual and the person finds the flavor pleasing.
Descripción
Palabras clave
Eliminación de la orina, Recuperación, Hidratación, Deshidratación, Ejercicio, Urine elimination, Recovery, Hydration, Dehydration, Exercise, 634.61 Cocos, 613.711 Entrenamiento físico para deportes
Citación
http://www.revistas.una.ac.cr/index.php/mhsalud/article/view/533/472