Can cerebellar theta-burst stimulation improve balance function and gait in stroke patients? A randomized controlled trial.
Ping-An Zhu, Zhi-Liang Li, Qi-Qi Lu and 6 others
PMID 38577727WHAT IT FOUND
Adding cerebellar theta-burst stimulation to physical therapy improved balance, walking speed, and daily living independence more than physical therapy alone in stroke patients.
Both groups improved, but the stimulation group showed greater gains in key walking metrics like stride length and velocity.
Key findings
01The cerebellar stimulation group had significantly higher Berg Balance Scale scores, lower Timed Up and Go times, and higher Barthel Index scores than the sham group after two weeks.
02While both groups improved in some gait parameters, the stimulation group showed significantly greater improvements in cadence, stride length, gait velocity, and step length of the affected limb.
03All participants received standardized physical therapy for 60 minutes daily for 10 days, meaning the added benefit is attributed to the stimulation on top of this common care.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
The study did not differentiate outcomes between hemorrhagic and ischemic stroke patients, so it is unclear if the effect size differs by stroke type. The sham stimulation involved rotating the coil and reducing intensity, which may not have perfectly blinded participants to the sensation of the treatment. Joint angles were not measured, so the specific biomechanical changes in the lower limbs are unknown. The sample size was small (36 patients), and the study duration was only two weeks, so long-term retention of gains is unknown.
The easy way to misread this
Do not attribute the entire improvement to the stimulation. Both groups received identical physical therapy, and the stimulation group only showed *greater* improvement, not exclusive improvement. The effect is additive to standard care.