Rehidratación post-ejercicio con agua de coco: ¿igual o más efectiva que una bebida deportiva?
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Universidad Nacional de Costa Rica
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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.
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ELIMINACIÓN DE LA ORINA; RECUPERACIÓN; HIDRATACIÓN; DESHIDRATACIÓN; EJERCICIO; ;URINE ELIMINATION; RECOVERY; HYDRATION; DEHYDRATION; EXERCISE, URINE ELIMINATION, RECOVERY, HYDRATION, DEHYDRATION, EXERCISE