The Science Journal of the American Association for Respiratory Care

1995 OPEN FORUM Abstracts

THE EFFECT OF EXTERNAL NASAL DILATION ON ATHLETIC PERFORMNACE

Mare, Trocchio, BS, Anna W. Parkman, MBA, RRT,Jean Fisher, MBA, RRT, University of Charleston, Charleston, WV

Within the past year, many athletes have begun using an external nasal dilator (Breathe-Right Nasal Dilator, CNS Inc., Chanhassenl MN) to increase athletic performance. Advertisements claim the device will decrease nasal corigestion and improve nasal air conductance during sleep. The athletes have assumed that the increase in nasal airflow Will improve oxygenation thereby elevating performance levels. We evaluated the effect of the dilator by measuring changes in functional capacity (VO2max) and Work rate during oontrolled cardiopulmonary exercise testing (MedGraphics Cardio2, Medical Graphics Corporation, St Paul MN) with and without the dilator. Data was obtained from 18 male college atheletes. Each was asked to exercise maximally (RER > 1.09) utillzing identical 30 watt ramped oycle ergometer protocols on two seperate occasions at least 48 hrs apart with and without the nasal dilator. Trials were randomized to eliminate training effect. Mean VO2max = 3325 mVmin (SD ± 520). Using the dilator, mean VO2max = 3305 mVmin (SD ± 514) for a mean difference of -21 mVmin (SD ± 297), Mean Peak work =291.1 watts (SD ± 37.8). With the dilator, mean peak work = 279.5 watts (SD ± 40.2) reflecting a mean difference of -11.48 watts (SD ± 39.5). No significant differences were observed for all measured parameters using p= < 0.05 as level of signiflcance, The data clearly reflects that use of the dilator during exercise elicits no demonstrable change upon measured physiologio parameters, We therefore conclude that the use of an external nasal dilator has no discernible physical impact on athletic performance.

OF-95-161

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