Effect of unilateral breathing exercises on regional lung ventilation

Citation
B. Tucker et al., Effect of unilateral breathing exercises on regional lung ventilation, NUCL MED C, 20(9), 1999, pp. 815-821
Citations number
30
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging
Journal title
NUCLEAR MEDICINE COMMUNICATIONS
ISSN journal
0143-3636 → ACNP
Volume
20
Issue
9
Year of publication
1999
Pages
815 - 821
Database
ISI
SICI code
0143-3636(199909)20:9<815:EOUBEO>2.0.ZU;2-W
Abstract
We investigated the effect of a unilateral thoracic expansion exercise (TEE ), a breathing manoeuvre used by physiotherapists, on regional lung ventila tion Nine trained physiotherapists aged 22-37 years completed the study. Te chnegas lung ventilation scans were used to determine the effect of a right unilateral TEE performed when sitting. This was compared with a maximal de ep breath. Total radioactivity in each lung was determined. Each lung was s ectioned into three equal zones (upper, middle and lower) and the ratio of radioactivity for each of the corresponding lung zones calculated. Ventilat ion was preferentially distributed to the right lung in all participants du ring both breathing manoeuvres. The mean (+/- S.E.M.) radioactivity ratios (right/left lung) were greater during a unilateral TEE (1.17 +/- 0.02) than during a deep breath (1.07 +/- 0.01). Seven participants achieved signific antly greater ventilation to the right middle (1.15 +/- 0.03, P = 0.02) and lower zones (1.34 +/- 0.03, P = 0.02) during a unilateral TEE than to the corresponding zones on the left; this was evident soon after the initiation of the breath. The findings of this study show that relative regional vent ilation to the ipsilateral lung can be increased during a unilateral TEE in trained individuals. ((C) 1999 Lippincott Williams & Wilkins).