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J Athl Train. 2000 Jan-Mar; 35(1): 60–64.
PMCID: PMC1323440

External Nasal Dilator Strips Do Not Affect Treadmill Performance in Subjects Wearing Mouthguards

Tom Overend, PhD, BScPT, Jorge Barrios, BScPT, Brad McCutcheon, BScPT, and Jay Sidon, BScPT



To determine the effect of the Breathe Right (BR) external nasal dilator strip on treadmill exercise performed while wearing an upper maxillary mouthguard.

Design and Setting:

Two-way repeated-measures design with subjects acting as their own controls. Subjects performed 2 randomly assigned bouts of incremental treadmill exercise (with and without the BR strip) while wearing upper maxillary mouthguards.


Nineteen young, healthy, recreationally active men.


we assessed subjective nasal patency levels at rest. We also recorded heart rate, dyspnea rating, and treadmill speed at 2 submaximal exercise levels and at volitional fatigue.


Subjective nasal patency was significantly increased with the strip. Repeated-measures analyses of variance revealed a significant main effect of the BR strip on dyspnea ratings during exercise, but there was no effect of the strip on test duration, heart rate, or running speed during the tests.


Our results suggest that the BR nasal dilator strip does not affect treadmill exercise performance in subjects wearing mouthguards.

Full text

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Haight JS, Cole P. The site and function of the nasal valve. Laryngoscope. 1983 Jan;93(1):49–55. [PubMed]
  • Hinton VA, Warren DW, Hairfield WM, Seaton D. The relationship between nasal cross-sectional area and nasal air volume in normal and nasally impaired adults. Am J Orthod Dentofacial Orthop. 1987 Oct;92(4):294–298. [PubMed]
  • Griffin JW, Hunter G, Ferguson D, Sillers MJ. Physiologic effects of an external nasal dilator. Laryngoscope. 1997 Sep;107(9):1235–1238. [PubMed]
  • Gosepath J, Mann WJ, Amedee RG. Effects of the Breathe Right nasal strips on nasal ventilation. Am J Rhinol. 1997 Sep-Oct;11(5):399–402. [PubMed]
  • Portugal LG, Mehta RH, Smith BE, Sabnani JB, Matava MJ. Objective assessment of the breathe-right device during exercise in adult males. Am J Rhinol. 1997 Sep-Oct;11(5):393–397. [PubMed]
  • Roithmann R, Chapnik J, Zamel N, Barreto SM, Cole P. Acoustic rhinometric assessment of the nasal valve. Am J Rhinol. 1997 Sep-Oct;11(5):379–385. [PubMed]
  • Scharf MB, Brannen DE, McDannold M. A subjective evaluation of a nasal dilator on sleep & snoring. Ear Nose Throat J. 1994 Jun;73(6):395–401. [PubMed]
  • Trocchio M, Fisher J, Wimer JW, Parkman AW. Oxygenation and exercise performance-enhancing effects attributed to the breathe-right nasal dilator. J Athl Train. 1995 Sep;30(3):211–214. [PMC free article] [PubMed]
  • Pearsall AW, Speer KP. Frozen shoulder syndrome: diagnostic and treatment strategies in the primary care setting. Med Sci Sports Exerc. 1998 Apr;30(4 Suppl):S33–S39. [PubMed]
  • Chapman PJ. Players' attitudes to mouthguards and prevalence of orofacial injuries in the 1987 U.S. Rugby Football Team. Am J Sports Med. 1989 Sep-Oct;17(5):690–691. [PubMed]
  • Seals RR, Jr, Morrow RM, Kuebker WA, Farney WD. An evaluation of mouthguard programs in Texas high school football. J Am Dent Assoc. 1985 Jun;110(6):904–909. [PubMed]
  • Francis KT, Brasher J. Physiological effects of wearing mouthguards. Br J Sports Med. 1991 Dec;25(4):227–231. [PMC free article] [PubMed]
  • Proctor DF. The upper airways. I. Nasal physiology and defense of the lungs. Am Rev Respir Dis. 1977 Jan;115(1):97–129. [PubMed]
  • Gift AG. Clinical measurement of dyspnea. Dimens Crit Care Nurs. 1989 Jul-Aug;8(4):210–216. [PubMed]
  • Buchfuhrer MJ, Hansen JE, Robinson TE, Sue DY, Wasserman K, Whipp BJ. Optimizing the exercise protocol for cardiopulmonary assessment. J Appl Physiol Respir Environ Exerc Physiol. 1983 Nov;55(5):1558–1564. [PubMed]
  • Roithmann R, Chapnik J, Cole P, Szalai J, Zamel N. Role of the external nasal dilator in the management of nasal obstruction. Laryngoscope. 1998 May;108(5):712–715. [PubMed]
  • Benninger MS, Sarpa JR, Ansari T, Ward J. Nasal patency, aerobic capacity, and athletic performance. Otolaryngol Head Neck Surg. 1992 Jul;107(1):101–104. [PubMed]
  • Dallimore NS, Eccles R. Changes in human nasal resistance associated with exercise, hyperventilation and rebreathing. Acta Otolaryngol. 1977 Nov-Dec;84(5-6):416–421. [PubMed]
  • Forsyth RD, Cole P, Shephard RJ. Exercise and nasal patency. J Appl Physiol Respir Environ Exerc Physiol. 1983 Sep;55(3):860–865. [PubMed]
  • Falck B, Aust R, Svanholm H, Bäcklund L. The effect of physical work on the mucosal blood flow and gas exchange in the human maxillary sinus. Rhinology. 1989 Dec;27(4):241–250. [PubMed]
  • Fregosi RF, Lansing RW. Neural drive to nasal dilator muscles: influence of exercise intensity and oronasal flow partitioning. J Appl Physiol (1985) 1995 Oct;79(4):1330–1337. [PubMed]
  • Dempsey JA. J.B. Wolffe memorial lecture. Is the lung built for exercise? Med Sci Sports Exerc. 1986 Apr;18(2):143–155. [PubMed]
  • Johnson BD, Dempsey JA. Demand vs. capacity in the aging pulmonary system. Exerc Sport Sci Rev. 1991;19:171–210. [PubMed]

Articles from Journal of Athletic Training are provided here courtesy of National Athletic Trainers Association