Academic Journal

Efficacy of transcranial alternating current stimulation for musculoskeletal pain and sleep quality: a systematic review and meta-analysis.

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Τίτλος: Efficacy of transcranial alternating current stimulation for musculoskeletal pain and sleep quality: a systematic review and meta-analysis.
Συγγραφείς: Chen Z; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia., Qian M; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China., Yang Y; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China., Zhao J; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China., Wang Z; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; Research Center of Humanities and Medicine, Zunyi Medical University, Zunyi, Guizhou Province, China., Cai W; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; Research Center of Humanities and Medicine, Zunyi Medical University, Zunyi, Guizhou Province, China., Xu J; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; Zunyi Medical University Zhuhai Campus, Zhuhai, Guangdong Province, China., Han J; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; College of Rehabilitation Sciences, Shanghai University of Medicine & Health Sciences, Shanghai, China; Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT, Australia. Electronic address: jia.han@canberra.edu.au., Chen Y; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China. Electronic address: yangpucy@163.com.
Πηγή: Complementary therapies in medicine [Complement Ther Med] 2026 Oct; Vol. 101, pp. 103419. Date of Electronic Publication: 2026 Aug 10.
Τύπος έκδοσης: Journal Article; Meta-Analysis; Systematic Review
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Elsevier Country of Publication: Scotland NLM ID: 9308777 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-6963 (Electronic) Linking ISSN: 09652299 NLM ISO Abbreviation: Complement Ther Med Subsets: MEDLINE
Imprint Name(s): Publication: Edinburgh : Elsevier
Original Publication: Edinburgh ; New York : Churchill Livingstone, c1993-
Ιατρικοί όροι (MeSH): Musculoskeletal Pain*/therapy , Transcranial Direct Current Stimulation*/methods , Sleep Quality*, Pain Management/methods ; Humans ; Randomized Controlled Trials as Topic
Περίληψη: Background: Transcranial alternating current stimulation (tACS) is a non-invasive neuromodulation technique, emerging as a potential therapeutic option for musculoskeletal pain management.
Objective: To comprehensively evaluate the efficacy and safety of tACS for alleviating pain and improving sleep quality in adults with musculoskeletal pain.
Methods: We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs). Seven major databases and other sources were searched from inception until April 2026. Two reviewers independently screened studies, extracted data, and assessed risk of bias. A random-effects model was used to pool standardized mean differences (SMDs). The certainty of evidence was evaluated using the Grading of Recommendation Assessment, Development, and Evaluation framework.
Results: Six RCTs involving 232 participants were included. Meta-analysis showed that tACS could significantly reduce pain intensity compared to control (SMD = -0.355, 95% CI: -0.625 to -0.084, p = 0.010, I² = 28.7%). However, no significant improvement was found for sleep quality (SMD = 0.004, 95% CI: -0.310-0.317, p = 0.982, I² = 0.0%). Adverse effects were mild and transient, comparable to sham stimulation. The overall certainty of evidence was rated as low for both pain and sleep quality outcomes.
Conclusion: Current evidence suggests that tACS may be beneficial for musculoskeletal pain; however, the available evidence remains limited and should be interpreted cautiously. The effect of tACS on sleep quality remains uncertain because of the limited number of available studies. Future well-designed RCTs with standardized outcome measures, condition-specific stimulation protocols, and longer follow-up are required to establish the efficacy and long-term safety of tACS.
(Copyright © 2026. Published by Elsevier Ltd.)
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Contributed Indexing: Keywords: Chronic pain; Musculoskeletal pain; Neuromodulation; Pain management; Transcranial alternating current stimulation; tACS
Entry Date(s): Date Created: 20260810 Date Completed: 20260826 Latest Revision: 20260908
Update Code: 20260909
DOI: 10.1016/j.ctim.2026.103419
PMID: 42575228
Βάση Δεδομένων: MEDLINE
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  Data: Efficacy of transcranial alternating current stimulation for musculoskeletal pain and sleep quality: a systematic review and meta-analysis.
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  Data: <searchLink fieldCode="AU" term="%22Chen+Z%22">Chen Z</searchLink>; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia.<br /><searchLink fieldCode="AU" term="%22Qian+M%22">Qian M</searchLink>; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China.<br /><searchLink fieldCode="AU" term="%22Yang+Y%22">Yang Y</searchLink>; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China.<br /><searchLink fieldCode="AU" term="%22Zhao+J%22">Zhao J</searchLink>; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China.<br /><searchLink fieldCode="AU" term="%22Wang+Z%22">Wang Z</searchLink>; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; Research Center of Humanities and Medicine, Zunyi Medical University, Zunyi, Guizhou Province, China.<br /><searchLink fieldCode="AU" term="%22Cai+W%22">Cai W</searchLink>; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; Research Center of Humanities and Medicine, Zunyi Medical University, Zunyi, Guizhou Province, China.<br /><searchLink fieldCode="AU" term="%22Xu+J%22">Xu J</searchLink>; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; Zunyi Medical University Zhuhai Campus, Zhuhai, Guangdong Province, China.<br /><searchLink fieldCode="AU" term="%22Han+J%22">Han J</searchLink>; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China; College of Rehabilitation Sciences, Shanghai University of Medicine & Health Sciences, Shanghai, China; Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT, Australia. Electronic address: jia.han@canberra.edu.au.<br /><searchLink fieldCode="AU" term="%22Chen+Y%22">Chen Y</searchLink>; Shanghai Yangpu District Mental Health Center, Shanghai University of Medicine & Health Sciences, No. 585 Jungong Road, Yangpu District, Shanghai 200093, China. Electronic address: yangpucy@163.com.
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  Data: <searchLink fieldCode="JN" term="%229308777%22">Complementary therapies in medicine</searchLink> [Complement Ther Med] 2026 Oct; Vol. 101, pp. 103419. <i>Date of Electronic Publication: </i>2026 Aug 10.
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Elsevier%22">Elsevier </searchLink><i>Country of Publication: </i>Scotland <i>NLM ID: </i>9308777 <i>Publication Model: </i>Print-Electronic <i>Cited Medium: </i>Internet <i>ISSN: </i>1873-6963 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2209652299%22">09652299 </searchLink><i>NLM ISO Abbreviation: </i>Complement Ther Med <i>Subsets: </i>MEDLINE
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  Data: <searchLink fieldCode="MM" term="%22Musculoskeletal+Pain%22">Musculoskeletal Pain*</searchLink>/<searchLink fieldCode="MM" term="%22Musculoskeletal+Pain+therapy%22">therapy</searchLink> <br /><searchLink fieldCode="MM" term="%22Transcranial+Direct+Current+Stimulation%22">Transcranial Direct Current Stimulation*</searchLink>/<searchLink fieldCode="MM" term="%22Transcranial+Direct+Current+Stimulation+methods%22">methods</searchLink> <br /><searchLink fieldCode="MM" term="%22Sleep+Quality%22">Sleep Quality*</searchLink><br /><searchLink fieldCode="MH" term="%22Pain+Management%22">Pain Management</searchLink>/<searchLink fieldCode="MH" term="%22Pain+Management+methods%22">methods</searchLink> ; <searchLink fieldCode="MH" term="%22Humans%22">Humans</searchLink> ; <searchLink fieldCode="MH" term="%22Randomized+Controlled+Trials+as+Topic%22">Randomized Controlled Trials as Topic</searchLink>
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  Data: Background: Transcranial alternating current stimulation (tACS) is a non-invasive neuromodulation technique, emerging as a potential therapeutic option for musculoskeletal pain management.<br />Objective: To comprehensively evaluate the efficacy and safety of tACS for alleviating pain and improving sleep quality in adults with musculoskeletal pain.<br />Methods: We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs). Seven major databases and other sources were searched from inception until April 2026. Two reviewers independently screened studies, extracted data, and assessed risk of bias. A random-effects model was used to pool standardized mean differences (SMDs). The certainty of evidence was evaluated using the Grading of Recommendation Assessment, Development, and Evaluation framework.<br />Results: Six RCTs involving 232 participants were included. Meta-analysis showed that tACS could significantly reduce pain intensity compared to control (SMD = -0.355, 95% CI: -0.625 to -0.084, p = 0.010, I² = 28.7%). However, no significant improvement was found for sleep quality (SMD = 0.004, 95% CI: -0.310-0.317, p = 0.982, I² = 0.0%). Adverse effects were mild and transient, comparable to sham stimulation. The overall certainty of evidence was rated as low for both pain and sleep quality outcomes.<br />Conclusion: Current evidence suggests that tACS may be beneficial for musculoskeletal pain; however, the available evidence remains limited and should be interpreted cautiously. The effect of tACS on sleep quality remains uncertain because of the limited number of available studies. Future well-designed RCTs with standardized outcome measures, condition-specific stimulation protocols, and longer follow-up are required to establish the efficacy and long-term safety of tACS.<br /> (Copyright © 2026. Published by Elsevier Ltd.)
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  Data: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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  Data: <i>Keywords: </i>Chronic pain; Musculoskeletal pain; Neuromodulation; Pain management; Transcranial alternating current stimulation; tACS
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