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Transcranial magnetic stimulation improves upper limb function and motion in post-stroke patientsTranscranial Magnetic Stimulation Shows Promise for Stroke Limb Recovery

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Key Takeaway
Consider TMS to improve upper limb function and motion in stroke patients, especially with treatments exceeding 2 weeks.

This meta-analysis synthesized data from 21 documents to evaluate the efficacy of transcranial magnetic stimulation (TMS) in stroke patients across multiple motor function scales. The analysis focused on primary outcomes including Fugl-Meyer Assessment for Upper Limb (FMA-UL), Fugl-Meyer Assessment for Lower Limb (FMA-LL), Modified Ashworth Scale (MAS), Box and Block Test (BBT), Action Research Arm Test (ARAT), and Wolf Motor Function Test (WMFT).

Key findings indicate significant improvements in the ARAT (MD = 8.01; 95% CI: 0.53-15.50, P = 0.04) and BBT (MD = 5.36; 95% CI: 0.16-10.56, P = 0.04). Regarding the FMA-UL, no general significant effects were observed, but a significant improvement was noted for treatment durations exceeding 2 weeks (MD = 4.44; 95% CI: 0.83-8.06, P = 0.016). No significant effects were reported for FMA-LL, MAS, or WMFT (all P > 0.88).

The authors note that the study is limited by a small sample size of included documents. Clinical application suggests TMS may positively impact limb function and upper limb flexibility in stroke patients, though larger scale trials are required to increase certainty.

How this fits prior evidence

This meta-analysis addresses a gap in rehabilitative modalities for stroke survivors. While prior evidence indicates that botulinum toxin effectively reduces spasticity but has inconsistent effects on gait and balance, this finding suggests that TMS may specifically improve upper limb motion and flexibility. The results regarding upper limb improvement during treatment exceeding 2 weeks provide specific temporal context for rehabilitation duration.

A review of 21 studies looked at how transcranial magnetic stimulation (TMS) affects physical recovery in patients who have had a stroke. This type of treatment uses magnetic fields to stimulate nerve activity. The researchers focused on several measures of movement, including arm and leg function, as well as hand dexterity.

The findings showed that TMS significantly improved scores on tests for upper limb movement and hand coordination. Specifically, the study noted improvements in the Action Research Arm Test and the Box and Block Test. For upper limb recovery, the results were more positive when treatment lasted longer than two weeks.

However, the researchers found no significant effects on lower limb function or other specific muscle tests like the Wolf Motor Function Test. Because the total number of studies included was small, the evidence is not yet conclusive. More large-scale trials are needed to confirm these results and determine how often this treatment should be used.

What this means for you:
TMS may improve upper limb movement and hand skills after a stroke, especially with longer treatment cycles.

Common questions

How does TMS help with stroke recovery?

Transcranial magnetic stimulation (TMS) uses magnetic fields to stimulate the brain. In this review of 21 studies, it was linked to improved upper limb movement and better hand coordination in stroke patients.

Does TMS help with leg movement after a stroke?

The study did not find significant effects on lower limb function for stroke patients. While some tests for the arms showed improvement, the results for the legs were not statistically significant.

How long does treatment need to last to be effective?

For upper limb recovery, the data suggested that treatment cycles lasting more than 2 weeks showed a significant difference in improving movement scores compared to shorter periods.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedJul 2026
View Original Abstract ↓
ObjectiveThis study aims to evaluate the effects of transcranial magnetic stimulation (TMS) on Fugl-Meyer Assessment for Upper Limb (FMA-UL), Fugl-Meyer Assessment for Lower Limb (FMA-LL), Modified Ashworth Scale (MAS), Box and Block Test (BBT), Action Research Arm Test (ARAT), and Wolf Motor Function Test (WMFT) in stroke patients.Data sourcesA systematic search of PubMed, Web of Science, Embase, and Ovid databases was conducted to identify relevant studies.MethodsOnly randomized controlled trials (RCTs) investigating TMS interventions in stroke patients were included. Data analysis was performed using Stata 18.0, incorporating subgroup analysis, sensitivity analysis, and bias assessments.ResultsA total of 21 documents were included. The meta-analysis revealed that TMS significantly improved ARAT (MD = 8.01, 95% CI: 0.53–15.50, P = 0.04) and BBT (MD = 5.36, 95% CI: 0.16–10.56, P = 0.04). However, no significant effects were observed for FMA-UL, FMA-LL, MAS, and WMFT (P > 0.88). The subgroup analysis shows that there is a significant difference in the effects of different intervention cycles on FMA-UL in stroke patients. The intervention cycle has no effect on FMA (P > 0.05), but weeks> 2 improves FMA (MD = 4.44, 95% CI: 0.83–8.06, P = 0.016).ConclusionTMS has a positive effect on the limb function of stroke patients, especially the flexibility and motion function of the upper limbs. However, due to the limited sample size in this study, further large-scale RCTs are necessary to confirm these findings.Systematic review registrationhttps://www.crd.york.ac.uk/PROSPERO/myprospero, identifier: CRD42024618509.
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