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Pulmonary Function Index Comparisons Depending on Various Postures of Stroke Patients
J Korean Soc Phys Med 2019;14(1):43-51
Published online February 28, 2019;
© 2019 Korean Society of Physical Medicine.

Kyung-Soo Lee, PT⋅Myung-Mo Lee, PT, PhD1†

Department of Physical Therapy, Graduate School of Health and Medicine, Daejeon University
1Department of Physical Therapy, Daejeon University
Received November 27, 2018; Revised November 30, 2018; Accepted December 17, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
PURPOSE: To prevent secondary complications from decreased pulmonary functions and promote neurological recovery, identification of respiratory capacity change patterns depending on different postures of stroke patients and investigation of their properties are needed for active rehabilitation. Therefore, this study was conducted to investigate the changes in vital capacity in response to different positions and to implement the results as clinical data.
METHODS: A respiratory function test was administered to 52 patients with stroke in the sitting, supine, paretic side lying, and non-paretic side lying positions. Pulmonary function indexes used for comparison were forced vital capacity (FVC), forced expiratory volume at 1 second (FEV1), forced expiratory flow 25–75% (FEF 25–75%), and maximum voluntary ventilation (MVV). One-way repeated ANOVA was used for analysis, and post hoc analysis was conducted using least significant difference (LSD).
RESULTS: All pulmonary function indexes were measured in the order of sitting, paretic side lying, supine, and non-paretic side lying positions. Excluding the FEF25-75% and MVV of the supine compared with the paretic side lying position, all other pulmonary function indexes differed significantly (p<.05).
CONCLUSION: There are differences in pulmonary function indexes depending on different postures of stroke patients, and the study showed that the non-paretic side lying position yielded the greatest effect on lung ventilation mechanisms. Based on these results, appropriate postures need to be considered during physical therapy interventions for stroke patients.
Keywords : Respiration, Respiratory function tests, Spirometry, Stroke, Ventilation

February 2019, 14 (1)
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