Physiological Changes at Altitude in Nonasthmatic and Asthmatic Subjects
نویسندگان
چکیده
منابع مشابه
Airway re-narrowing following deep inspiration in asthmatic and nonasthmatic subjects.
After bronchoconstriction, deep inspiration (DI) causes dilatation followed by airway re-narrowing. Re-narrowing may be faster in asthmatic than nonasthmatic subjects. This study investigated the relationship between re-narrowing and the magnitude of both DI-induced dilatation and the volume-dependence of respiratory system resistance (Rrs) during tidal breathing. In 25 asthmatic and 18 nonasth...
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A deep breath (DB) during induced obstruction results in a transient reversal with a return to pre-DB levels in both asthmatic and nonasthmatic subjects. The time course of this transient recovery has been reported to be exponential by one group but linear by another group. In the present study, we estimated airway resistance (Raw) from measurements of respiratory system transfer impedance befo...
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ژورنال
عنوان ژورنال: Canadian Respiratory Journal
سال: 2004
ISSN: 1198-2241
DOI: 10.1155/2004/734760