Ultrasonographic measurement indicated patients with chronic neck pain had reduced diaphragm thickness and mobility along with declined respiratory functions

Hii EY 1 , Kuo YL 2 , Cheng KC 3 , Hung CH 4 , Tsai YJ 5

Affiliations 

  • 1 Department of Physiotherapy, Faculty of Health and Life Science, INTI International University, Persiaran Perdana BBN, Putra Nilai, 71800, Nilai, Negeri Sembilan, Malaysia. Electronic address: everlynn94@gmail.com
  • 2 Department of Physical Therapy, College of Medicine, National Cheng Kung University, No. 1 Ta-Hsueh Road, Tainan, 701, Taiwan; Physical Therapy Center, National Cheng Kung University Hospital, No.138, Sheng Li Road, Tainan, 704, Taiwan. Electronic address: yiliangkuo@mail.ncku.edu.tw
  • 3 Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, No. 1 Ta-Hsueh Road, Tainan, 701, Taiwan. Electronic address: kaichiacheng@gmail.com
  • 4 Department of Physical Therapy, College of Medicine, National Cheng Kung University, No. 1 Ta-Hsueh Road, Tainan, 701, Taiwan; Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, No. 1 Ta-Hsueh Road, Tainan, 701, Taiwan. Electronic address: chhung@mail.ncku.edu.tw
  • 5 Department of Physical Therapy, College of Medicine, National Cheng Kung University, No. 1 Ta-Hsueh Road, Tainan, 701, Taiwan; Physical Therapy Center, National Cheng Kung University Hospital, No.138, Sheng Li Road, Tainan, 704, Taiwan; Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, No. 1 Ta-Hsueh Road, Tainan, 701, Taiwan. Electronic address: yijutsai@mail.ncku.edu.tw
Musculoskelet Sci Pract, 2024 Aug;72:102951.
PMID: 38615408 DOI: 10.1016/j.msksp.2024.102951

Abstract

BACKGROUND: Chronic neck pain (CNP) is a prevalent musculoskeletal condition including notable impairments in respiratory function. The diaphragm, serving dual roles in respiration and spinal stability, is intricately linked to the cervical spine through fascial, neurophysiological, and biomechanical connections. However, to date, none has investigated the diaphragm function in patients with CNP.

OBJECTIVES: To investigate the diaphragm function, respiratory muscle strength, and pulmonary function in patients with CNP. In addition, their associations were also examined.

DESIGN: A case-control study.

METHODS: A total of 54 participants were recruited including 25 patients with CNP (CNP group) and 29 healthy adults (CON group). Pulmonary function including forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1), and respiratory muscle strength represented by maximal inspiratory (MIP) and maximal expiratory pressure (MEP), as well as diaphragm function including ultrasonographic measures of mobility and thickness changes during maximal inspiration and expiration were assessed in all participants. Additionally, the intensity of pain and disability were evaluated using a Visual Analog Scale and Neck Disability Index only in patients with CNP.

RESULTS: Significant reductions of the FVC, FEV1, MIP, and MEP were found in the CNP group compared to the CON group (p 

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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