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Maltodextrin-Based Carbohydrate Oral Rinsing and Exercise Performance: Systematic Review and Meta-Analysis
Claudia Hartley1, Amelia Carr2, Steven J Bowe3
1CASS Food Research Centre, Deakin University, 221 Burwood Highway, Burwood, VIC, 3125, Australia.
A maltodextrin carbohydrate oral rinse can enhance exercise performance. This method offers an alternative to ingestion, potentially avoiding gastrointestinal issues during intense workouts.
Area of Science:
- Sports Science
- Exercise Physiology
- Nutritional Biochemistry
Background:
- Carbohydrates are crucial for exercise performance, but ingestion can cause gastrointestinal distress.
- Oral rinsing with carbohydrates presents an alternative strategy to improve performance.
- This study is the first to systematically review the isolated effects of maltodextrin oral rinses.
Approach:
- A systematic review and meta-analysis were conducted.
- Five databases were searched for relevant studies up to March 2021.
- Random effects meta-analysis and meta-regression models were employed for analysis.
Key Points:
- Thirty-five articles were included, with 34 used in the meta-analysis.
- A conventional meta-analysis showed a significant improvement in exercise performance with carbohydrate oral rinse (SMD = 0.15).
- A robust meta-regression model indicated a trend towards improved performance (SMD = 0.17, p=0.051).
Conclusions:
- Maltodextrin-based carbohydrate oral rinses can improve exercise performance.
- The findings support carbohydrate oral rinsing as a viable strategy for athletes.
- Further research using robust models confirms the potential benefits of this ergogenic aid.
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