Effects of Pre-Exercise Nutrition Strategies on Body Temperature and Thermoregulatory Responses

Completed · Not applicable · Has a placebo group

Conditions studied: Impaired Thermoregulation

In brief

Carbohydrate ingestion, in particular fructose, has been shown in a handful of previous studies to elicit a thermic effect and increase core body temperature after ingestion. Carbohydrate foods and supplements are commonly consumed prior to endurance running competition, including situations where an athlete's ability to dissipate body heat is compromised. Thus, there is some potential for pre-exercise carbohydrate ingestion to have a deleterious effect on body heat regulation in hot and humid environments. Thus, this projects aims to study the effects of pre-exercise carbohydrate ingestion on core body temperature, perceived thermal stress, and perceived exertion during high-intensity running.

Key facts

Study ID

NCT02814188

Run by

Old Dominion University

People needed

37

Starts

2016-06-01

Expected to finish

2017-09-01

Last updated by the study team

2017-12-15

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Be currently running ≥20 miles per week
• Have a projected 5-km maximal effort running time between 16:00-23:00 minutes

You may not qualify if…

• Any gastrointestinal disorders that cause swallowing problems or frequent nausea/vomiting

Where it is running

• Human Performance Laboratory — Norfolk, Virginia, United States

Full record on ClinicalTrials.gov

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