Search tips
Search criteria 


Logo of jathtrainLink to Publisher's site
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

Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (925K), or click on a page image below to browse page by page.

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