| 英文摘要 |
Chronic nonspecific low back pain (CNLBP) is a common musculoskeletal disorder that leads to pain and disability. Breathing exercises can strengthen the diaphragm and core muscles, alleviating pain and reducing disability. The aim in this study was to investigate the effects of various breathing exercises on the level of pain and disability in patients with CNLBP. Following the Joanna Briggs Institute (JBI) manual for evidence synthesis, databases including the Taiwan Periodical Literature System, Airiti Library, CINAHL, Cochrane Library, Embase, PubMed, and ProQuest were searched for studies published before April 2025. The Medical Subject Headings (MeSH) and synonyms related to“low back pain”and“breathing exercises”were used, applying Boolean logic and advanced search strategies such as filters for randomized controlled trials (RCTs). A total of 14 RCTs were included in this study. The methodological quality of these studies was evaluated using the JBI 2023 checklist for RCTs. A meta-analysis was performed using Review Manager version 5.4. Breathing exercises significantly reduced pain (SMD=- 1.07, p=0.001) and disability (SMD=-0.63, p=0.0005) compared with those experienced by patients treated with usual care. Subgroup analyses revealed that inspiratory muscle training notably reduced pain, whereas core-stabilizing respiratory muscle training substantially reduced pain and disability. The current evidence of the effects of breathing exercises on reducing pain and disability in those with CNLBP is based on small-sample studies, most of which exhibit high risk of selection, performance, detection, and attrition biases, resulting in weak evidence. However, breathing exercises are noninvasive and have no serious adverse effects. Therefore, breathing exercises should be clinically implemented through knowledge translation with ongoing monitoring of individual responses to assess the long-term applicability of this intervention. |