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This study will investigate the clinical, functional and neurophysiological effects of automated mechanical peripheral stimulation (AMPS) via the Gondola device administered to patients with chronic stroke, cerebral palsy and Parkinson's Disease. Results will be collected using standardized outcome measures and a transcranial magnetic stimulation assessment protocol including electrical stimulation and electromyographic recording.
The working hypothesis for this pre-post intervention study is that one session of AMPS will increase voluntary motor drive of the plantar-flexors (soleus) muscle. The primary outcome measure will be maximum voluntary contraction (MVC) of the soleus (measured by electromyography, EMG); the secondary outcome will be the MVC of the antagonist muscle, the tibialis anterior. Data will be collected before the first session compared to directly after. The same measures in sham-stimulated and healthy volunteers will serve as controls.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Real AMPS | Active Comparator | AMPS therapy consists of mechanical stimulations applied to two specific points on both feet: the tip of the big toe (hallux) and the first metatarsal joint. |
|
| Sham AMPS | Sham Comparator | AMPS therapy applied to two non-specific points on both feet. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Gondola AMPS | Device | One treatment session lasts about two minutes and consists of the application of a mechanical pressure pulses on each of the points, one after the other, for a set duration (a few seconds), which is repeated several times in sequence. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Soleus MVC | maximum voluntary contraction of the soleus muscle (measured by EMG) | pre and post-AMPS (baseline and 2 minutes) |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Tibialis anterior MVC | maximum voluntary contraction of tibialis anterior (measured by EMG) | pre and post-AMPS (baseline and 2 minutes) |
| Change in 10 meter walk test | self-selected pace to determine gait speed |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Gabriela Rozanski | MOUNT SINAI HOSPITAL | Study Director |
| David Putrino, PT, PhD | Icahn School of Medicine at Mount Sinai | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Abilities Research Center | New York | New York | 10029 | United States |
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| ID | Term |
|---|---|
| D002547 | Cerebral Palsy |
| D010300 | Parkinson Disease |
| D009422 | Nervous System Diseases |
| ID | Term |
|---|---|
| D001925 | Brain Damage, Chronic |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D020734 | Parkinsonian Disorders |
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Twenty adult individuals in the chronic phase of stroke, 20 people with cerebral palsy, 20 with Parkinson's Disease (intermediate stage) and 20 healthy volunteers will be randomized to receive sham or real AMPS intervention.
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A blinded evaluator will collect all the demographic (age, gender, time since injury, injury type), clinical and functional data of the participants. The investigator performing transcranial magnetic stimulation assessments will also be blinded.
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| pre and post-AMPS (baseline and 2 minutes) |
| D001480 | Basal Ganglia Diseases |
| D009069 | Movement Disorders |
| D000080874 | Synucleinopathies |
| D019636 | Neurodegenerative Diseases |