Impact of Palatability on
Voluntary Fluid Intake.
It is well known that athletes' fluid
intake rarely matches fluid loss during
exercise. Among other factors,
voluntary fluid intake is influenced
by beverage flavor and temperature.
Although the popular literature offers
numerous reasons for choosing a flavored
beverage during exercise, relatively
little is known about the impact
of beverage palatability on voluntary
fluid intake. This study compared
four beverages: 6% commercial sports
drink (CCE; Gatorade), 6% homemade
sports drink (HCE), diluted
orange juice (DOJ), and water (W).
Fifty endurance athletes had brief
access to one of the four beverages
(temperature of 4-7" C) twice during a
75-min aerobic circuit session. Each
athlete received all four treatments,
which were assigned in a Latinsquare
design. Fluid intake, degree of
dehydration, and palatability were
assessed. Overall, significantly more
CCE was consumed at 30 and 60 min
than all other beverages, while more
HCE was consumed at 60 min compared
with DOJ and W. Athletes were
least dehydrated when consuming
CCE, whereas dehydration occurred
and W and HCE and DOJ. Fluid
intake and palatability relationships
were weak but significant. This study
indicates that palatability varies substantially
among beverages and suggests
that compared with other beverages,
a commercially optimized flavor
system promotes voluntary fluid
intake and facilitates fluid replacement
in exercising endurance athletes.
Full Report: Passe DH,
Horn M, Stofan J, et al. Palatability
and voluntary intake of sports beverages,
diluted orange juice, and water
during exercise. Int J Sport Nutr Exerc
Metab. 2004;14:272-284.
______________________________________________________________________________
| Title |
Impact of palatability on voluntary fluid intake |
| Source |
SCAN's pulse (Chicago) |
| Vol (iss) |
24(1) |
| Date |
Winter 2005 |
| Pages |
13 |
| SIRC ID # |
S-978043 |
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