The Buteyko Breathing Technique in Sports and Exercise: Physiological Mechanisms, Performance Outcomes, and Future Directions

Abstract

Background: The Buteyko Breathing Technique (BBT) is a breathing-retraining method originally developed for respiratory disorders that has recently attracted interest as a complementary strategy in sports and exercise science. Objective: This narrative review critically examined the physiological mechanisms underlying BBT and its effects on pulmonary, cardiovascular, and performance-related outcomes in physically active and athletic populations, and identified methodological limitations and future research priorities. Methods: A critical narrative thematic review was undertaken by synthesizing evidence from PubMed, Scopus, Web of Science, SPORTDiscus, and Google Scholar, with emphasis placed on randomized controlled trials, systematic reviews, and experimental studies relevant to sports, exercise physiology, and respiratory physiology. Results: BBT primarily improves functional aspects of breathing—breathing control, respiratory rate, breathing awareness, and perceived exercise tolerance—rather than conventional pulmonary function indices such as forced vital capacity, forced expiratory volume in one second, or the FEV?/FVC ratio. Preliminary evidence suggests possible benefits for aerobic endurance, exercise tolerance, and recovery, but evidence for gains in maximal aerobic capacity, anaerobic performance, strength, or elite performance remains weak. The literature is limited by small samples, heterogeneous protocols, and a predominance of clinical rather than athletic cohorts. Conclusion: BBT is a promising complementary breathing intervention for improving breathing behaviour and exercise tolerance, but current evidence does not support its use as a stand-alone performance-enhancing strategy. Well-designed randomized controlled trials in athletic populations, using standardized protocols and sport-specific outcomes, are required.

Introduction

This paper is a critical narrative review of the Buteyko Breathing Technique (BBT) in sports and exercise, focusing on its physiological mechanisms, effects on performance, and practical applications.

Concise overall summary

The review argues that breathing is not merely a passive physiological process during exercise but can influence respiratory efficiency, autonomic regulation, perceived exertion, and exercise tolerance. The Buteyko Breathing Technique, which emphasizes nasal breathing, diaphragmatic breathing, reduced-volume breathing, breath awareness, and increased CO? tolerance, may modify breathing behaviour without substantially changing lung structure or conventional pulmonary-function measures.

The proposed mechanisms include:

• Improved CO? tolerance and ventilatory control
• Reduced unnecessary respiratory muscle workload
• Greater parasympathetic/autonomic regulation
• Improved breathing economy
• Reduced respiratory discomfort and perceived effort

However, the review emphasizes that several of these mechanisms are based on indirect evidence from other breathing interventions, rather than strong BBT-specific research.

Main findings

Key interpretation

The strongest conclusion is not that BBT directly improves athletic performance, but that it may improve breathing behaviour and breathing economy, particularly in people who have dysfunctional breathing patterns. Any improvement in exercise performance may therefore occur through reduced respiratory discomfort, better pacing, and improved breathing control rather than through major changes in lung capacity.

The review also makes an important methodological distinction: BBT should not be treated as equivalent to inspiratory muscle training, nasal breathing alone, diaphragmatic breathing, paced breathing, or yoga breathing. Evidence from these approaches can provide physiological context, but it cannot automatically be interpreted as evidence that BBT itself produces the same effects.

Practical implications

The authors suggest that BBT may be most appropriate as an adjunctive intervention, particularly for:

1. Endurance athletes – potentially useful during low- and moderate-intensity training.
2. Athletes with dysfunctional breathing – potentially the population most likely to benefit.
3. Team-sport athletes – possibly useful for recovery and breathing awareness between efforts.
4. Strength/power athletes – primarily for relaxation and recovery rather than improving maximal strength or power.
5. Recovery periods – slow nasal/diaphragmatic breathing may help promote parasympathetic recovery.

It should not replace established medical treatment, endurance training, strength training, or psychological-skills training.

Research gap

The major research gap is the lack of large, well-controlled, BBT-specific trials in healthy and competitive athletes. Future studies should use standardized BBT protocols, larger samples, appropriate control groups, objective physiological measurements, and sport-specific performance outcomes.

Conclusion

This review indicates that the Buteyko Breathing Technique has greater potential to improve functional aspects of breathing—respiratory control, breathing rate, and perceived exercise tolerance—than to produce structural changes in pulmonary or cardiovascular physiology; conventional spirometric indices are generally unaffected, whereas breathing behaviour, respiratory comfort, and exercise tolerance improve more consistently (Bruton & Lewith, 2005; Burgess et al., 2011; Migliaccio et al., 2023). Evidence for sport-relevant performance gains is encouraging but preliminary: modest improvements in aerobic endurance and recovery have been reported, whereas convincing evidence for gains in VO?max, anaerobic performance, strength, or elite performance is lacking, and existing studies are limited by small samples and heterogeneous methodology (Patra et al., 2025). BBT should therefore be regarded as a complementary strategy—rather than a substitute for evidence-based training—that may enhance breathing awareness, reduce unnecessary respiratory effort, and support recovery when integrated within comprehensive athletic programming (Powers & Howley, 2021). Larger, standardized, athlete-focused randomized controlled trials are required before its role in performance optimization can be firmly established. Accordingly, BBT should presently be regarded as an evidence-informed adjunct rather than a stand-alone performance-enhancing intervention until stronger athlete-specific evidence becomes available.

References

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Copyright

Copyright © 2026 Mr. Prabal Pratap Singh, Dr. Shailesh Kumar Singh. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.