Nasal breathing is all the rage these days, but how does it stack up to mouth breathing during intense exercise? Listen in as I explore the literature surrounding this question, and I'll let you know my thoughts on where nasal and mouth breathing fit as part of a comprehensive program for trained athletes.
References:
Alex Hutchinson, Endure
Veli, N. (1983). Oronasal airway choice during running. Respiration Physiology, 53(1): 129–133. PMID: 6622862
Saibene F, Mognoni P, Lafortuna CL and Mostardi R. (1978). Oronasal breathing during exercise. Pflügers Archives, 378(1): 65-69. https://doi.org/10.1007/BF00581959
LaComb, CO, Tandy, RD, Lee, SP, Young, JC and Navalta, JW. (2017). Oral versus Nasal Breathing during Moderate to High-Intensity Submaximal Aerobic Exercise. International Journal of Kinesiology and Sports Science, 5(1), 8-16. DOI: http://dx.doi.org/10.7575//aiac. ijkss.v.5n.1p.8
Recinto, C, Efthemeou, T., Bofelli, PT, and Navalta, JW. (2017). Effects of Nasal or Oral Breathing on Anaerobic Power Output and Metabolic Responses. International Journal of Exercise Science, 10(4): 506-514. PMCID: PMC5466403
Morton AR, King K, Papalia S, Goodman C, Turley KR, Wilmore JH. Comparison of maximal oxygen consumption with oral and nasal breathing. Aust J Sci Med Sport. 1995 Sep;27(3):51-5. PMID: 8599744.
Dallam, George & McClaran, Steve & Cox, Daniel & Foust, Carol. (2018). Effect of Nasal Versus Oral Breathing on Vo2max and Physiological Economy in Recreational Runners Following an Extended Period Spent Using Nasally Restricted Breathing. International Journal of Kinesiology and Sports Science. 6. 22. 10.7575/aiac.ijkss.v.6n.2p.22.
Other helpful links:
5 top breathing hacks to improve your HRV, health & performance
Alternate Nostril Breathing: The Benefits & How To Do It
Why you should use nasal breathing when you exercise - The Washington Post
Response of nasal airway and heart rate variability to controlled nasal breathing - PubMed
The impact of deep breathing and alternate nostril breathing on heart rate variability: a human physiology laboratory | Advances in Physiology Education