Voluntary Intake of Sports Drinks and Water in Males and Females Running in Hot Environment
Rivera Brown, Anita
Aragón Vargas, Luis Fernando
Cabrera Dávila, Yazaira
Berríos, Luis E.
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This study compared the palatability and voluntary intake of beverages that have different sensory characteristics, between male and female athletes while running or racewalking in a tropical climate. METHODS: Thirty-six athletes (runners n=31; racewalkers n=5), 18 males (M; mean age=18.9 ±3.5 yr) and 18 females (F; mean age=20.1± 4.7yr), were recruited. Subjects completed four 90-minute sessions, running or race walking outdoors (mean distance M=18.0 ± 1.7; F=13.1 ± 2.0 km) at an intensity requiring 80 to 85% of age predicted maximum heart rate in a hot and humid environment (WBGT=30.1±1.1oC) on separate days. One of 4 commercial beverages was offered on each occasion: unflavored water (W), 6% carbohydrate-electrolyte solution (CES), 6% carbohydrate-electrolyte + preservatives solution (CESP1) or 8% carbohydrate-electrolyte + preservatives + B vitamins solution (CESP2). Beverage order was assigned in a Latin Square, double-blind design. They were served cold in squeeze bottles and subjects drank as desired. Palatability was measured during a one-minute exercise break at 15-minute intervals using visual analog 10-point scales and 9-point category scales.
External link to the item10.1249/01.mss.0000274223.49529.eb