Ultrasonography Comparison of Diaphragm Morphological Structure and Function in Young and Middle-Aged Subjects with and without Non-Specific Chronic Low Back Pain: A Case-Control Study

Background. It is reported that impaired postural control in patients with non-specific chronic low back pain (NCLBP) was associated with “core” trunk muscle incoordination. However, as the diaphragm is an important component of the “core” deep trunk muscle group, we still know little about the pote...

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Main Authors: Wenwu Xiao, Fuming Zheng, Ke Dong, Zhuangfu Wang, Yao Zu, Chuhuai Wang
Format: Article
Language:English
Published: Hindawi Limited 2022-01-01
Series:Pain Research and Management
Online Access:http://dx.doi.org/10.1155/2022/7929982
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author Wenwu Xiao
Fuming Zheng
Ke Dong
Zhuangfu Wang
Yao Zu
Chuhuai Wang
author_facet Wenwu Xiao
Fuming Zheng
Ke Dong
Zhuangfu Wang
Yao Zu
Chuhuai Wang
author_sort Wenwu Xiao
collection DOAJ
description Background. It is reported that impaired postural control in patients with non-specific chronic low back pain (NCLBP) was associated with “core” trunk muscle incoordination. However, as the diaphragm is an important component of the “core” deep trunk muscle group, we still know little about the potential relationship between diaphragm dysfunction and NCLBP. Objectives. This case-control study is intended to investigate the changes of diaphragm morphological structure and function in young and middle-aged subjects with and without NCLBP by ultrasound evaluation and its possible validity in predicating the occurrence of NCLBP. Methods. 31 subjects with NCLBP (NCLBP group) and 32 matched healthy controls (HC group) were enrolled in this study. The diaphragm thickness at the end of inspiration (Tins) or expiration (Texp) during deep breathing was measured through B-mode ultrasound, and the diaphragm excursion (Texc) was estimated at deep breathing through M-mode ultrasound. The diaphragm thickness change rate (Trate) was calculated by the formula: Trate=Tins−Texp/Texp×100%. Results. Compared with the HC group, the NCLBP group had a significant smaller degree of Tins (t = −3.90, P<0.001), Texp (Z = −2.79, P=0.005), and Trate (t = −2.03, P=0.047). However, there was no statistical difference in Texc between the two groups (t = −1.42, P=0.161). The binary logistic regression analysis indicated that Trate (OR = 16.038, P=0.014) and Texp (OR = 7.714, P=0.004) were potential risk factors for the occurrence of NCLBP. Conclusions. The diaphragm morphological structure and function were changed in young and middle-aged subjects with NCLBP, while the diaphragm thickness change rate (Trate) and diaphragm thickness at the end of expiration (Texp) may be conductive to the occurrence of NCLBP. Furthermore, these findings may suggest that abnormal diaphragm reeducation is necessary for the rehabilitation of patients with NCLBP.
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spelling doaj.art-aa3289a455744d7aa6f17a5371a2e0fc2022-12-26T01:12:35ZengHindawi LimitedPain Research and Management1918-15232022-01-01202210.1155/2022/7929982Ultrasonography Comparison of Diaphragm Morphological Structure and Function in Young and Middle-Aged Subjects with and without Non-Specific Chronic Low Back Pain: A Case-Control StudyWenwu Xiao0Fuming Zheng1Ke Dong2Zhuangfu Wang3Yao Zu4Chuhuai Wang5Department of Rehabilitation MedicineDepartment of Rehabilitation MedicineDepartment of Rehabilitation MedicineDepartment of Rehabilitation MedicineDepartment of Rehabilitation MedicineDepartment of Rehabilitation MedicineBackground. It is reported that impaired postural control in patients with non-specific chronic low back pain (NCLBP) was associated with “core” trunk muscle incoordination. However, as the diaphragm is an important component of the “core” deep trunk muscle group, we still know little about the potential relationship between diaphragm dysfunction and NCLBP. Objectives. This case-control study is intended to investigate the changes of diaphragm morphological structure and function in young and middle-aged subjects with and without NCLBP by ultrasound evaluation and its possible validity in predicating the occurrence of NCLBP. Methods. 31 subjects with NCLBP (NCLBP group) and 32 matched healthy controls (HC group) were enrolled in this study. The diaphragm thickness at the end of inspiration (Tins) or expiration (Texp) during deep breathing was measured through B-mode ultrasound, and the diaphragm excursion (Texc) was estimated at deep breathing through M-mode ultrasound. The diaphragm thickness change rate (Trate) was calculated by the formula: Trate=Tins−Texp/Texp×100%. Results. Compared with the HC group, the NCLBP group had a significant smaller degree of Tins (t = −3.90, P<0.001), Texp (Z = −2.79, P=0.005), and Trate (t = −2.03, P=0.047). However, there was no statistical difference in Texc between the two groups (t = −1.42, P=0.161). The binary logistic regression analysis indicated that Trate (OR = 16.038, P=0.014) and Texp (OR = 7.714, P=0.004) were potential risk factors for the occurrence of NCLBP. Conclusions. The diaphragm morphological structure and function were changed in young and middle-aged subjects with NCLBP, while the diaphragm thickness change rate (Trate) and diaphragm thickness at the end of expiration (Texp) may be conductive to the occurrence of NCLBP. Furthermore, these findings may suggest that abnormal diaphragm reeducation is necessary for the rehabilitation of patients with NCLBP.http://dx.doi.org/10.1155/2022/7929982
spellingShingle Wenwu Xiao
Fuming Zheng
Ke Dong
Zhuangfu Wang
Yao Zu
Chuhuai Wang
Ultrasonography Comparison of Diaphragm Morphological Structure and Function in Young and Middle-Aged Subjects with and without Non-Specific Chronic Low Back Pain: A Case-Control Study
Pain Research and Management
title Ultrasonography Comparison of Diaphragm Morphological Structure and Function in Young and Middle-Aged Subjects with and without Non-Specific Chronic Low Back Pain: A Case-Control Study
title_full Ultrasonography Comparison of Diaphragm Morphological Structure and Function in Young and Middle-Aged Subjects with and without Non-Specific Chronic Low Back Pain: A Case-Control Study
title_fullStr Ultrasonography Comparison of Diaphragm Morphological Structure and Function in Young and Middle-Aged Subjects with and without Non-Specific Chronic Low Back Pain: A Case-Control Study
title_full_unstemmed Ultrasonography Comparison of Diaphragm Morphological Structure and Function in Young and Middle-Aged Subjects with and without Non-Specific Chronic Low Back Pain: A Case-Control Study
title_short Ultrasonography Comparison of Diaphragm Morphological Structure and Function in Young and Middle-Aged Subjects with and without Non-Specific Chronic Low Back Pain: A Case-Control Study
title_sort ultrasonography comparison of diaphragm morphological structure and function in young and middle aged subjects with and without non specific chronic low back pain a case control study
url http://dx.doi.org/10.1155/2022/7929982
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