Effects of physical exercise in nasal volume.
The nasal permeability has been demonstrated using several exams. Nasal structures produces a resistance to the nasal air flux that represents over 50% of the total respiratory resistance. Physical exercises is a factor that brings a vasoconstrictor effect over nasal mucosa.


OBJECTIVE
Evaluate the improvement degree of nasal volume after aerobic physical exercises and time to return to previous levels.


METHODS
Nineteen healthy subjects were submitted to aerobic exercise in ergometric bike. The nasal volume was obtained by Acoustic Rhinometry performed in rest, after aerobic exercise, 10o and 20o minutes after the aerobic exercise.


RESULTS
Rhynometrics results shows a statically and significant increase of nasal volume (p<0,001). The nasal volume, in twenty minutes, returns nearby the rest levels.


CONCLUSIONS
Aerobic exercises, generally, increases the nasal volume. However, the increase of nasal volume was transitory, and occurs a major reduction of increase in the first ten minutes after the exercises ends, and perform a greater vasoconstrictor effect over nasal mucosa, Twenty minutes after the physical exercises finish, total nasal volume returns, closely, to the basal levels.
Fonseca
Marconi Teixeira
MT
Socor Hospital , Belo Horizonte, Brazil.
Machado
Juliana Altavilla van Petten
JA
Pereira
Soraya Alves
SA
Pinto
Kelerson Moura
KM
Voegels
Richard Louis
RL
D000293:Adolescent; D000328:Adult; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D009296:Nasal Cavity / Q000502:physiology*; D012146:Rest / Q000502:physiology; D023842:Rhinometry, Acoustic; D013997:Time Factors