Voluntary drinking behaviour, fluid balance and psychological affect when ingesting water or a carbohydrate-electrolyte solution during exercise

Reference:

Peacock, O. J., Thompson, D. and Stokes, K. A., 2012. Voluntary drinking behaviour, fluid balance and psychological affect when ingesting water or a carbohydrate-electrolyte solution during exercise. Appetite, 58 (1), pp. 56-63.

Related documents:

Preview

PDF (Stokes_Appetite_2012_58_1_56.pdf) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader Download (309kB) | Preview

Official URL:

http://dx.doi.org/10.1016/j.appet.2011.08.023

Abstract

This study investigated the effects of drink composition on voluntary intake, hydration status, selected physiological responses and affective states during simulated gymnasium-based exercise. In a randomised counterbalanced design, 12 physically active adults performed three 20-min intervals of cardiovascular exercise at 75% heart rate maximum, one 20-min period of resistance exercise and 20 min of recovery with ad libitum access to water (W), a carbohydrate-electrolyte solution (CES) or with no access to fluids (NF). Fluid intake was greater with CES than W (1706 ± 157 vs. 1171 ± 152 mL; P < 0.01) and more adequate hydration was achieved in CES trials (NF vs. W vs. CES: −1668 ± 73 vs. −700 ± 99 vs. −273 ± 78 g; P < 0.01). Plasma glucose concentrations were highest with CES (CES vs. NF vs. W: 4.26 ± 0.12 vs. 4.06 ± 0.08 vs. 3.97 ± 0.10 mmol/L; P < 0.05). Pleasure ratings were better maintained with ad libitum intake of CES (CES vs. NF vs. W: 2.72 ± 0.23 vs. 1.09 ± 0.20 vs. 1.74 ± 0.33; P < 0.01). Under conditions of voluntary drinking, CES resulted in more adequate hydration and a better maintenance of affective states than W or NF during gymnasium-based exercise.

Export

Actions (login required)