Effects of manual percussion during postural drainage on lung volumes and metabolic status in healthy subjects

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• 作者：Jirakrit Leelarungrayub ; B.Sc. (PT) ; Ph.D. (Biochem)^a ; ^{donrawee.leela@cmu.ac.th" class="auth_mail" title="E-mail the corresponding author} ; ^{leela.donrawee@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Wichai Eungpinichpong ; Ph.D. (PT)^b ; ^{wiceun@yahoo.com" class="auth_mail" title="E-mail the corresponding author} ; Jakkrit Klaphajone ; (M.D)^c ; ^{jakkrit.k@cmu.ac.th" class="auth_mail" title="E-mail the corresponding author} ; Mujalin Prasannarong ; B.Sc. (PT) ; Ph.D.(Exercise Science)^a ; ^{mujalin.p@cmu.ac.th" class="auth_mail" title="E-mail the corresponding author} ; Kritsana Boontha ; B.Sc. (PT) ; M.S.(Movement ; Exercise Sciences)^a ; ^{kritsana.b@cmu.ac.th" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Manual percussion ; Postural drainage ; Chest physical therapy ; Lung volume ; Metabolic status
• 刊名：Journal of Bodywork and Movement Therapies
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：20
• 期：2
• 页码：356-363
• 全文大小：818 K

文摘

The aim of this study was to evaluate the influence of manual percussion during three different positions of postural drainage (PD) on lung volumes and metabolic status.

Methods

Twenty six healthy volunteers (13 women and 13 men), with a mean age of 20.15 ± 1.17 years, participated. They were randomized into three standard positions of PD (upper, middle, or lower lobes) and given manual percussion at a frequency of 240 times per minute for 5 min. Lung volumes, including tidal volume (TV), inspiratory reserve volume (IRV), expiratory reserve volume (ERV) and vital capacity (VC); and metabolic status, such as oxygen consumption (VO₂), carbon dioxide (VCO₂), respiratory rate (RR), and minute ventilation (VE) were evaluated.

Results

The lung volumes showed no statistical difference in VC or IRV from percussion during PD in all positions, except for the lower lobe, where increased TV and decreased ERV were found when compared to PD alone. Furthermore, percussion during PD of the upper and middle lobes did not affect RR or VE, when compared to PD alone. In addition, percussion during PD of the middle and lower lobes increased VO₂ and VCO₂ significantly, when compared to PD alone, but it did not influence PD of the upper lobe.

Conclusion

This study indicated that up to 5 min of manual percussion on PD of the upper and middle lobes is safe mostly for lung volumes, RR, and VE, but it should be given with care in PD conditions of the lower lobe.