Nasal resistance and flow resistive work of nasal breathing during exercise: effects of a nasal dilator strip
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چکیده
منابع مشابه
Nasal resistance and flow resistive work of nasal breathing during exercise: effects of a nasal dilator strip.
Using posterior rhinomanometry, we measured nasal airflow resistance (Rn) and flow-resistive work of nasal breathing (WONB), with an external nasal dilator strip (ENDS) and without (control), in 15 healthy adults (6 men, 9 women) during exclusive nasal breathing and graded (50-230 W) exercise on a cycle ergometer. ENDS decreased resting inspiratory and/or expiratory Rn (at 0.4 l/s) by >0.5 cmH(...
متن کاملEffects of the nasal strip and dilator on nasal breathing--a study with healthy subjects.
OBJECTIVE To investigate effects of the nose dilating devices on nasal anatomy and breathing in healthy subjects. MATERIALS AND METHODS 27 healthy subjects were tested when using the Breathe Right nasal strip or the Nozovent dilator. Posterior rhinomanometry, acoustic rhinometry, and a subjective evaluation were used as methods. RESULTS Both devices significantly increased the minimum cross...
متن کاملNasal vestibule wall elasticity: interactions with a nasal dilator strip.
We studied the effect of an adhesive external nasal dilator strip (ENDS) on external nasal geometry in 20 healthy Caucasian adults (10 men, 10 women; age 21-45 yr). The recoil force exerted by ENDS was estimated by bending the device (n = 10) with known weights. In the horizontal direction, a small/medium-sized ENDS in situ exerted a unilateral recoil force of 21.4-22.6 g. Application of ENDS r...
متن کاملCombined effects of a nasal dilator and nasal prongs on nasal airflow resistance.
STUDY OBJECTIVES Nasal prongs (NPs), when used to assess nasal flow, can result in dramatic increases in nasal airflow resistance (NR). The aim of this study was to investigate whether the NP-induced increases in NR could be corrected by the simultaneous use of an internal nasal dilator (ND). DESIGN NR was estimated by posterior rhinomanometry, in the basal state (NRb), and while breathing wi...
متن کاملCombined effects of a mechanical nasal dilator and a topical decongestant on nasal airflow resistance.
The goal of this study was to compare the isolated and combined effects of two treatments being used to reduce nasal airflow resistance (NR): an internal nasal mechanical dilator (Nozovent; Prevancure; Sté Pouret, Paris, France) and a topical decongestant, fenoxazoline hydrochloride (Aturgyl; Synthelabo; Le Plessis-Robinson, France). The study was performed in 17 healthy subjects. NR was estima...
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ژورنال
عنوان ژورنال: Journal of Applied Physiology
سال: 2000
ISSN: 8750-7587,1522-1601
DOI: 10.1152/jappl.2000.89.3.1114