Cortical activity during sensorial tactile stimulation in healthy adults through Vojta therapy. A randomized pilot controlled trial.
Ismael Sanz-Esteban, Roberto Cano-de-la-Cuerda, Ana San-Martín-Gómez and 4 others
PMID 33478517WHAT IT FOUND
Stimulation at the Vojta pectoral point activated motor and sensory brain areas in healthy adults, while sham stimulation did not.
This supports the therapy's neurophysiological basis but does not prove clinical effectiveness in patients with neurological disorders.
Key findings
01Specific Vojta stimulation produced significant bilateral activation in the supplementary motor, premotor, superior parietal, and posterior cingulate cortex, whereas sham stimulation showed only tiny, localized differences.
02Brain activation in the Vojta group increased over the 8-minute session, peaking in the final minute and remaining elevated for one minute after the stimulation stopped.
03The study included only healthy adults to establish a baseline, so these brain changes cannot be assumed to occur or be beneficial in patients with neurological damage.
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
The sample was small (n=40) and consisted only of healthy adults, so results cannot be generalized to patients with neurological disorders. Brain activity localization was less precise because only 32 EEG electrodes were used. The study only measured brain activity for one minute after stimulation, so the duration of any effect is unknown. The physical response to the Vojta stimulus varied between participants, and this heterogeneity was not accounted for in the analysis. The trial was registered retrospectively, which weakens confidence that the primary outcomes were defined before the study started.
Declared interests
No specific funding sources or conflicts of interest are explicitly detailed in the provided text beyond standard ethical approvals.
The easy way to misread this
Do not assume this proves Vojta therapy works for patients with cerebral palsy or stroke. The study was done on healthy adults to map brain activity, not to test clinical outcomes or functional improvement in patients.