The effect of pre exercise feeding on endurance performance
File(s)
Date
2002-12Author
Petteys, Carrie Lynn
Advisor(s)
Foster, C.
Metadata
Show full item recordAbstract
Glycogen depletion can have a deleterious effect on endurance performance. The use
of carbohydrates ingested either before exercise or during has been a topic of
numerous studies. However previous studies have been seriously limited by the use
of non-athletically representative outcome measures. This study was designed to test
whether or not ingesting a carbohydrate solution 30 min prior to endurance exercise
would have an effect on endurance performance. Ten well-trained cyclists performed
three 40 km time trials (one for habituation purposes), using a control and a
carbohydrate solution (35 grams). Time to completion, power output, velocity, blood
lactate, blood glucose (BG), HR, and RPE were measured during the ride. There
were no significant differences, except for a significant drop in BG at the beginning
of the ride. Based on these results, the use of carbohydrates before endurance
exercise does not hinder endurance performance.
Subject
Glycogen
Carbohydrates - Metabolism
Cycling - Physiological aspects