Effects of Different Sports Supplements on Metabolism and Perceptual Responses During Distance Running

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    Old Dominion University
Updated on 25 January 2021


Several previous studies have shown that repeatedly ingesting carbohydrate supplements during exercise training sessions, over a period of days and weeks, can gradually increase carbohydrate oxidation and reduce gut discomfort during exercise. However, repeatedly ingesting large amounts of carbohydrate during training sessions can be burdensome and can cause gut distress. Thus, it would be advantageous if the same long-term benefits could be realized from consuming these carbohydrate supplements at rest instead of specifically during training sessions. Therefore, the goal of this study is to examine whether repeatedly ingesting a carbohydrate-rich beverage at rest over a 5-day period alters metabolism and gut symptoms while ingesting carbohydrate during exercise.

Condition Anomalies Gastrointestinal
Treatment Placebo Beverage, carbohydrate beverage
Clinical Study IdentifierNCT03596788
SponsorOld Dominion University
Last Modified on25 January 2021


Yes No Not Sure

Inclusion Criteria

Be currently running 15 miles per week
Have completed at least one run >60 minutes over the past month
Have completed one or more marathons within the past year

Exclusion Criteria

Overt cardiovascular disease or metabolic disorder
Adverse symptoms (e.g., unusual shortness of breath, dizziness, chest pain) with exercise
Allergies/intolerances to any of the ingredients in the beverages
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