Hinojosa, J. R., Iman, W. H., Pujol, T. J., & Langenfeld, M. E. (1997). The effects of an external nasal dilator strip on differentiated ratings of perceived exertion. Medicine and Science in Sports and Exercise, 29(5), Supplement abstract 1609.

Ss (M = 10; F = 7) performed two 2--min runs at 60-65% VO2max, one using a nasal strip and the other without (control). There were no differences in overall ratings of perceived exertion, central exertion, or localized exertion in leg muscles and joints.

Implication. Nasal dilators offer no performance enhancement qualities.

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