Brain stimulation plus exercise reduced back pain, with uncertain functional benefit
Pooled trials suggest an added pain benefit from active stimulation, while evidence for improved physical function remains inconclusive.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Adding active brain stimulation to exercise reduced reported pain more than adding sham stimulation to the same exercise. Physical function did not show a statistically clear additional improvement. The abstract supports different conclusions for pain and function, and the authors caution that the clinical importance of the findings remains uncertain.
Results varied across studies, especially for function. The abstract omits the pain scale and assessment timing; evidence certainty was moderate for pain and low for function.
What researchers found
Physical function
Active versus sham stimulation, both with identical exercise; assessment timing unreported. SMD expresses standard deviation units rather than raw function points; negative values favor active treatment. The interval crosses no difference and does not establish additional functional benefit.
Testing the added contribution
Both groups received identical exercise therapy, allowing the trials to assess what active stimulation added. This comparison cannot establish the combined treatment’s overall benefit relative to receiving no rehabilitation.
Interpreting the uncertainty
The confidence interval allows functional effects in either direction. A statistically inconclusive result does not prove the treatments equivalent, and this abstract cannot establish a dependable extra benefit for physical function.
The original publication
Transcranial direct current stimulation combined with exercise therapy for chronic low back pain: a systematic review and meta-analysis.
Xia R, Lu S, Zhao L
Front Hum Neurosci · 2025
- PubMed ID
- 41625548
- Record checked
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