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The parasympathetic system in exercise-induced rhinorrhoea
W E Harris1, K Giebaly, C Adair
1Royal Victoria Hospital, Belfast, Northern Ireland.
Rhinology
|March 1, 1992
Summary
Ipratropium bromide effectively reduces nasal secretions at rest and during exercise. The study also suggests non-parasympathetic factors contribute to exercise-induced rhinorrhea.
Area of Science:
- Pharmacology
- Physiology
Background:
- Nasal secretion plays a role in respiratory health.
- Exercise can trigger increased nasal discharge (rhinorrhea).
Purpose of the Study:
- To evaluate the efficacy of ipratropium bromide in reducing nasal secretions.
- To investigate the causes of exercise-induced rhinorrhea.
Main Methods:
- Double-blind, placebo-controlled study design.
- Administration of ipratropium bromide versus placebo.
- Measurement of nasal secretion rates at rest and post-exercise.
Main Results:
- Ipratropium bromide significantly reduced resting nasal secretion (p < 0.05).
- Ipratropium bromide significantly reduced exercise-induced rhinorrhea (p < 0.01).
- Evidence suggests non-parasympathetic mechanisms for exercise-induced nasal secretion.
Conclusions:
- Ipratropium bromide is effective in managing both resting and exercise-induced nasal hypersecretion.
- Further research is needed to identify non-parasympathetic pathways involved in exercise-induced rhinorrhea.