Beyond bronchodilation: Illuminating the performance benefits of inhaled beta2-agonists in sports
Research output: Contribution to journal › Journal article › Research › peer-review
Documents
- Fulltext
Final published version, 1.14 MB, PDF document
Given the prevalent use of inhaled beta2-agonists in sports, there is an ongoing debate as to whether they enhance athletic performance. Over the last decades, inhaled beta2-agonists have been claimed not to enhance performance with little consideration of dose or exercise modality. In contrast, orally administered beta2-agonists are perceived as being performance enhancing, predominantly on muscle strength and sprint ability, but can also induce muscle hypertrophy and slow-to-fast fiber phenotypic switching. But because inhaled beta2-agonists are more efficient to achieve high systemic concentrations than oral delivery relative to dose, it follows that the inhaled route has the potential to enhance performance too. The question is at which inhaled doses such effects occur. While supratherapeutic doses of inhaled beta2-agonists enhance muscle strength and short intense exercise performance, effects at low therapeutic doses are less apparent. However, even high therapeutic inhaled doses of commonly used beta2-agonists have been shown to induce muscle hypertrophy and to enhance sprint performance. This is concerning from an anti-doping perspective. In this paper, we raise awareness of the circumstances under which inhaled beta2-agonists can constitute a performance-enhancing benefit.
Original language | English |
---|---|
Article number | e14567 |
Journal | Scandinavian Journal of Medicine and Science in Sports |
Volume | 34 |
Issue number | 1 |
Number of pages | 12 |
ISSN | 0905-7188 |
DOIs | |
Publication status | Published - 2024 |
Bibliographical note
Publisher Copyright:
© 2024 The Authors. Scandinavian Journal of Medicine & Science In Sports published by John Wiley & Sons Ltd.
- asthma, athletes, doping, exercise, performance, sports
Research areas
ID: 381703930