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Related Experiment Video

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Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation

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The external nasal dilator: style over function?

Greg W Boggs¹, Jesse R Ward, Stasinos Stavrianeas

¹Department of Exercise Science, Willamette University, Salem, Oregon, USA.

Journal of Strength and Conditioning Research

|February 26, 2008

Summary

This summary is machine-generated.

An external nasal dilator (END) did not improve aerobic performance in sedentary or trained women. The device also failed to lower blood lactate levels during high-intensity exercise across all study groups.

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Area of Science:

Exercise Physiology
Sports Science
Biomedical Engineering

Background:

Assessing aerobic performance is crucial for athletes and sedentary individuals.
Blood lactate threshold is a key indicator of endurance capacity.
External nasal dilators (ENDs) are marketed to enhance breathing and performance.

Purpose of the Study:

To investigate the impact of an external nasal dilator (END) on blood lactate threshold in sedentary and aerobically trained women.
To determine if END use affects blood lactate concentrations during incremental exercise.

Main Methods:

A two-way repeated-measures design was employed with sedentary, pre-season, and in-season trained women.
Participants completed incremental exercise tests on a cycle or rowing ergometer, with and without an END.
Blood lactate levels were measured at rest, during exercise, and during recovery.

Main Results:

No significant differences in blood lactate concentration at the lactate threshold were observed between END and no-END conditions for any group.
Blood lactate levels during moderate to high-intensity exercise were not significantly reduced by END use.
Individual group results showed no performance enhancement with END use.

Conclusions:

External nasal dilators do not enhance the lactate threshold in college-aged women, regardless of training status.
ENDs do not appear to lower blood lactate levels during strenuous exercise in the studied populations.
The findings suggest limited efficacy of ENDs for improving aerobic performance metrics in women.