Cerebellar tDCS combined with augmented reality treadmill for freezing of gait in Parkinson's disease: a randomized controlled trial.
Fabrizio Pisano, Denise Mellace, Ambra Fugatti and 10 others
PMID 39342307WHAT IT FOUND
Cerebellar tDCS added to augmented reality treadmill training did not improve clinical scores like freezing or balance compared to treadmill training alone.
The brain stimulation only changed one lab measure of standing balance on the right leg, which did not translate to better walking or daily function.
Key findings
01No significant interaction effects were found between the stimulation type and time for any motor, functional, or cognitive outcome measure.
02Significant improvements were seen only in specific C-Mill laboratory measures of right-leg standing sway and left step length during obstacle avoidance in the real stimulation group.
03The small sample size likely limited the ability to detect true differences between the groups.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
Very small sample size (17 completers) limits statistical power and generalizability. The positive findings were limited to specific laboratory measures on the treadmill, not clinical tests used in practice. The 10-day intervention duration may have been too short to induce lasting functional changes.
Declared interests
Funded by the Italian Ministry of Health (Ministero della Salute). No commercial conflicts of interest reported.
The easy way to misread this
Do not interpret the significant changes in laboratory treadmill measures as evidence that cerebellar tDCS improves walking or reduces freezing in daily life. These specific lab findings did not translate to any improvement in the primary clinical outcomes, which were null.