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- Title
Thoracoabdominal asynchrony: Two methods in healthy, COPD, and interstitial lung disease patients.
- Authors
Pereira, Mayra Caleffi; Porras, Desiderio Cano; Lunardi, Adriana Claudia; da Silva, Cibele Cristine Berto Marques; Barbosa, Renata Cléia Claudino; Cardenas, Letícia Zumpano; Pletsch, Renata; Ferreira, Jeferson George; de Castro, Isac; de Carvalho, Celso Ricardo Fernandes; Caruso, Pedro; de Carvalho, Carlos Roberto Ribeiro; de Albuquerque, André Luis Pereira
- Abstract
Background: Thoracoabdominal asynchrony is the nonparallel motion of the ribcage and abdomen. It is estimated by using respiratory inductive plethysmography and, recently, using optoelectronic plethysmography; however the agreement of measurements between these 2 techniques is unknown. Therefore, the present study compared respiratory inductive plethysmography with optoelectronic plethysmography for measuring thoracoabdominal asynchrony to see if the measurements were similar or different. Methods: 27 individuals (9 healthy subjects, 9 patients with interstitial lung disease, and 9 with chronic obstructive pulmonary disease performed 2 cycle ergometer tests with respiratory inductive plethysmography or optoelectronic plethysmography in a random order. Thoracoabdominal asynchrony was evaluated at rest, and at 50% and 75% of maximal workload between the superior ribcage and abdomen using a phase angle. Results: Thoracoabdominal asynchrony values were very similar in both approaches not only at rest but also with exercise, with no statistical difference. There was a good correlation between the methods and the Phase angle values were within the limits of agreement in the Bland-Altman analysis. Conclusion: Thoracoabdominal asynchrony measured by optoelectronic plethysmography and respiratory inductive plethysmography results in similar values and has a satisfactory agreement at rest and even for different exercise intensities in these groups.
- Subjects
RIB abnormalities; INSPIRATION; RESPIRATORY muscles; NEUROMUSCULAR diseases in children; INTENSIVE care units; ANATOMY
- Publication
PLoS ONE, 2017, Vol 12, Issue 8, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0182417