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Journal article
The effect of a low glycemic vs. high glycemic pre-exercise meal in recreationally trained endurance cyclists
Journal of Exercise Physiology - Online, Vol.19, pp.90-99
19
2016
Abstract
The purpose of this study was to examine the effects of two iso-kilocaloric (837.2 kJ) pre-exercise meals: a low glycemic meal (LGM) vs. a high glycemic meal (HGM) and a placebo meal in recreational cyclists on endurance cycling. After a 2-d high carbohydrate diet and abstention from exercise, 18 healthy recreationally trained male subjects aged 18 to 35 yrs with a VO max of 3.94 ± 0.6 L·min-1 participated in this within-subject design study. Each of three rides consisted of 2 hr of cycling exercise at 55% VO₂ max followed by a brief 30 min rest and a moderately high intensity ride to exhaustion at 80% VO₂ max. The LGM did not exert a greater ergogenic effect in this study when compared to the iso-kilocaloric HGM. While the effect was not statistically significant, the HGM meal outperformed the LGM and the placebo on time to exhaustion. A fiber-free, glucose-derived meal may be superior to a low glycemic fiber-free whole meal in supporting moderately high intensity exercise in some highly motivated recreationally trained endurance athletes.
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Details
- Title
- The effect of a low glycemic vs. high glycemic pre-exercise meal in recreationally trained endurance cyclists
- Publication Details
- Journal of Exercise Physiology - Online, Vol.19, pp.90-99
- Resource Type
- Journal article
- Publisher
- American Society of Exercise Physiologists; [Duluth, MN]
- Series
- 19
- Copyright
- Copyright of Journal of Exercise Physiology Online is the property of American Society of Exercise Physiologists
- Identifiers
- 99380090341206600
- Academic Unit
- Movement Sciences and Health; Usha Kundu, MD College of Health
- Language
- English