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A brief report on the clinical trial on neural mobilization exercise for joint pain in patients with rheumatoid arthritis |
Lau YN, Ng J, Lee SY, Li LC, Kwan CM, Fan SM, Leung BPL, Lo CN |
Zeitschrift fuer Rheumatologie 2019 Jun;78(5):474-478 |
clinical trial |
4/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
BACKGROUND: In rheumatoid arthritis (RA) synovitis, activation of synoviocytes and infiltration of adaptive immune cells leads to synovial hyperplasia and joint swelling. Under the elevated extra-neural pressure, free nerve endings release neuropeptides, calcitonin gene-related peptide, and substance P, thus promoting neurogenic inflammation. OBJECTIVE: This study aimed to assess the effect of therapeutic neural mobilization (NM) exercises targeting the nervous system on disease impact in RA patients. METHODS: A total of 21 RA patients were randomized into NM (n = 11) and control (n = 10) groups. NM group patients performed NM exercises targeting the median, musculocutaneous, femoral, and saphenous nerve, as well as the entire nervous system twice daily for 4 to 8 weeks. Control RA patients performed gentle joint mobilization exercises targeting the same joints. Primary outcome was the change in pre-/post-treatment score in the validated Rheumatoid Arthritis Impact of Disease (RAID). Secondary outcome was erythrocyte sedimentation rate (ESR). RESULTS: There were no significant differences between the groups at baseline. No adverse events were observed and compliance was over 90%. Post-treatment, favorable changes were observed in the NM group RAID score -5.1 versus -0.8; weighted RAID score -0.79 versus -0.15. ESR was reduced in the NM group, albeit non-significantly. Regarding the RAID score domains, the NM group demonstrated significant improvements in pain and coping. CONCLUSION: The current data indicate a beneficial effect of NM exercises on pain and self-efficacy in our RA patients. Larger clinical studies are warranted to determine the clinical effectiveness of NM as a treatment for pain for RA patients and simultaneously address immune and neuropeptide modulation through NM.
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