Abstract:
Sports drinks are essential in improving athletic performance through replenishing
nutrients and electrolytes lost during physical activity. It has been previously suggested that the
perception and acceptability of fluids is influenced by exercise and significantly varies between
exercise and non-exercise situations. The study investigates the influence of different types of
sports on the taste perception and acceptability of Gatorade, a commercial sports drink, before
and after exercise.
A sample of Gatorade – Red Orange Flavor was evaluated by 34 male university
athletes (20 weightlifters, 14 runners) recruited from the American University of Beirut (AUB)
at two time points: pre and post exercise. Urine samples collected from the participants 30
minutes before and immediately after exercising were analyzed to test for hydration. Sensory
testing examined the change in the intensity of sweetness, saltiness, sourness, and the thirstquenching
ability of the drink as well as its acceptability pre and post exercise with respect to
the type of sport practiced. Participants were asked to rate their level of exertion and fatigue
using a Borg Rating of Perceived Exertion (RPE) scale immediately after exercising.
Results indicated that the acceptability of the drink increased as the hydration status of
the athletes decreased. No major change was found in the perception of the sensory attributes
between exercise and non-exercise conditions. However, there were differences between the
two sports groups in the ratings of the thirst-quenching ability of the drink where runners’
ratings increased after exercise while weightlifters’ ratings decreased after exercise.
These findings suggest that exercise has a larger effect on the acceptability and overall
liking of the beverage compared to other sensory attributes. An enhanced liking of the beverage
is key for optimal replenishment of lost fluids and electrolytes after exercise.
