Sensory Feedback and Hand Motor Adaptation
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Visual ROM augmentation, Visual ROM reduction.
- Who it may be relevant to
- Registry conditions: Stroke. Basic parameters: 20 years — 70 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Impact of Altered Sensory Feedback on Adaptation of Hand Muscle Coordination of Stroke Survivors
Overview
The following experiment will be conducted with 15 chronic stroke survivors and 15 control subjects. Subjects will perform hand movements in the virtual reality environment using a head-mounted display. Quest's onboard cameras allow real-time tracking of hand motion, estimating joint angles of the finger and the thumb. For each feedback manipulation condition (i.e., movement amplification or reduction), the estimated joint angles will be multiplied by a factor greater than 1 (amplification) or a factor smaller than 1 (reduction). Then the newly-estimated hand posture will be displayed in the VR environment. Subjects will be randomly assigned into two groups (A and B), who will receive the assistance in a different order. Subjects will perform finger extension under three conditions: no sensory modulation, movement visual feedback (VF) amplification, and movement VF reduction (error augmentation), while their movement muscle activation patterns are recorded.
Interventions
- Device Visual ROM augmentation
Finger joint ROM is amplified. - Device Visual ROM reduction
Visual feedback of finger joint ROM is reduced.
Primary outcome measures
- Joint range of motion (ROM) [Time frame: Periprocedural]
Secondary outcome measures (1)
- Muscle activation [Time frame: Periprocedural]
Eligibility criteria
Inclusion Criteria for stroke group:
- Age: 20 - 70 years old
- First-ever unilateral cortical stroke with resultant hemiparesis at least 6 months prior to the experimental testing
- Fugl-Meyer Upper Extremity Section 31 - 55
Exclusion Criteria for both groups:
- Presence of concurrent severe medical illness
- Pain in hand or arm with movements
- Loss of voluntary control of fingers and thumb
- Inability to provide informed consent
- Musculoskeletal injuries (e.g., fracture) or medical complications (e.g., severe cardiovascular disease).
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Randomized
- Model
- Crossover
- Masking
- Open label
- Primary purpose
- Basic science
Study locations
United States · 1 center
- Catholic University of America — Washington D.C.
Identifiers
NCT: NCT07598695 · STUDY00006785 · 1R15HD114052