Effect of gustatory stimulation on endurance performance
Abstract
The purpose of this study was to determine whether the ingestion of
an energy-free aspartame beverage (ASP) (99 mg aspartame/L) would
influence endurance performance relative to a water (WAT) trial. Nine
trained male cyclists underwent two cycle ergometer trials to exhaustion at
75% VO2 max. Experimental beverages were ingested every 15 minutes
beginning 45 minutes prior to cycling. Mean (± SD) exercise times to
exhaustion were 100 ± 28 minutes for the ASP trial and 99 ± 34 minutes
for the WAT trial (p>.05). Respiratory exchange ratio and heart rate did
not differ in response to the treatment condition. Ratings of perceived
exertion were significantly elevated in the ASP trial but only at the
initiation of exercise. It was concluded that the ASP beverage did not
impair endurance performance relative to WAT.
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- Retrospective theses [1604]