Modulation of the sensorimotor system by sustained manual pressure stimulation
Pavel Hok1, Jaroslav Opavský2, Miroslav Kutín3
1Department of Neurology, Faculty of Medicine and Dentistry, Palacky University Olomouc, I. P. Pavlova 185/6, Olomouc CZ-77520, Czech Republic; Department of Neurology, University Hospital Olomouc, I. P. Pavlova 185/6, Olomouc CZ-77520, Czech Republic.
Neuroscience
|February 24, 2017
Summary
Vojta physiotherapy, or reflex locomotion therapy, uses pressure stimulation to affect motor responses. This study found heel stimulation specifically modulated brainstem activation during hand movements, suggesting a neurobiological basis for the therapy.
Area of Science:
- Neuroscience
- Physiotherapy
- Rehabilitation Medicine
Background:
- Vojta physiotherapy (reflex locomotion therapy) utilizes peripheral pressure stimulation to evoke motor responses, but its underlying neurobiological mechanisms are not well understood.
- Understanding the brain's response to Vojta physiotherapy is crucial for optimizing its application in clinical practice.
Purpose of the Study:
- To investigate the neurobiological basis of Vojta physiotherapy by examining sensorimotor activation changes using functional magnetic resonance imaging (fMRI).
- To determine if peripheral pressure stimulation, specifically Vojta stimulation at the heel, alters brain activity during a motor task.
Main Methods:
- Thirty healthy volunteers participated in two randomized fMRI sessions.
- Participants received either Vojta stimulation at the right lateral heel or a control stimulation at the right lateral ankle.
- fMRI scans were acquired before and after stimulation while participants performed sequential finger opposition.
Main Results:
- Both stimulation types led to a decrease in overall brain activation.
- Vojta stimulation of the heel specifically increased task-related activation in the contralateral pontomedullary reticular formation and bilateral cerebellum.
- This suggests differential short-term changes in hand motor task activation based on stimulation site.
Conclusions:
- Sustained pressure stimulation, particularly Vojta physiotherapy, induces differential short-term changes in hand motor task-related brain activation.
- This study provides the first evidence of brainstem modulation following peripheral pressure stimulation, implicating the pontomedullary reticular formation in the effects of reflex locomotion therapy.
