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Legal nutritional boosting for cycling
Asker Jeukendrup1, Kevin D Tipton
1School of Sport and Exercise Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom. A.E.Jeukendrup@bham.ac.uk
Current Sports Medicine Reports
|July 9, 2009
Summary
Nutritional strategies for cycling performance, like carbohydrate intake, need updates. Current evidence on protein co-ingestion and training with low glycogen for endurance remains inconclusive.
Area of Science:
- Sports Nutrition
- Exercise Physiology
Background:
- Nutritional strategies are crucial for optimizing cycling performance.
- Existing recommendations for carbohydrate intake may require revision.
- Emerging strategies like protein co-ingestion and training with low glycogen warrant further investigation.
Purpose of the Study:
- To critically evaluate current nutritional strategies for improving cycling performance.
- To assess the efficacy of carbohydrate intake, protein co-ingestion, and low-glycogen training.
Main Methods:
- Literature review of recent studies on nutritional interventions in cycling.
- Analysis of evidence regarding carbohydrate, protein, and glycogen manipulation during exercise and training.
Main Results:
- Carbohydrate feeding during exercise is effective but may need adjusted recommendations.
- Evidence for protein co-ingestion with carbohydrate during exercise is equivocal.
- Longer-term effects of training with low glycogen on performance are unclear.
- Many supplements lack robust scientific support for enhancing endurance.
Conclusions:
- Current evidence does not strongly support protein co-ingestion for endurance performance enhancement.
- Further research is needed to clarify the long-term effects of low-glycogen training.
- Athletes should be cautious about supplements lacking scientific validation for performance benefits.
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