Fluid Balance During Exercise in the Heat With Water, Flavored Placebo, or a Carbohydrate-electrolyte Beverage Intake (The APEX Study)

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Pennington Biomedical Research Center

Status

Completed

Conditions

Dehydration

Treatments

Other: Exercise Intervention

Study type

Interventional

Funder types

Other

Identifiers

NCT01893853
PBRC 12038

Details and patient eligibility

About

The purpose of the APEX study is to determine whether carbohydrate-electrolyte beverage intake promotes fluid balance during exercise in the heat compared with water or placebo intake.

Full description

Exercise in the heat has large effects on cardiovascular strain, the ability to regulate core body temperature, and performance because of an increase in the reliance on body fluid distribution to the skin to maintain adequate sweat rates and heat dissipation. Carbohydrate-electrolyte beverage intake during exercise in the heat may improve fluid balance and subsequent physical performance. The participants will be assigned each arm in a randomized, counterbalanced, cross-over fashion separated by at least 2 weeks. Participants will be placed in a heated environment for the duration of the exercise intervention.

Enrollment

24 patients

Sex

Male

Ages

18 to 35 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

* Males aged 18-35 years * Healthy (No uncontrolled disease)

Exclusion criteria

* No medications that influence fluid balance * No uncontrolled disease

Trial design

Primary purpose

Basic Science

Allocation

Randomized

Interventional model

Crossover Assignment

Masking

Triple Blind

24 participants in 3 patient groups, including a placebo group

Water
Other group
Description:
Electrolyte- and mineral-free water with exercise intervention
Treatment:
Other: Exercise Intervention
Placebo
Placebo Comparator group
Description:
Calorie- and electrolyte-free, sweetened flavored water with exercise intervention
Treatment:
Other: Exercise Intervention
Carbohydrate-electrolyte beverage
Experimental group
Description:
Commercially-available flavored beverage carbohydrate-electrolyte beverage with Exercise Intervention
Treatment:
Other: Exercise Intervention

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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