About this trial
This study will investigate whether mentally simulating walking movements while watching others walk can improve walking performance in individuals with Multiple Sclerosis (MS). Participants will be divided into two groups: one group will watch walking videos and imagine themselves walking, while the other group will watch nature scenes. The study will measure muscle activity and walking patterns to assess the effects. The results may help support the use of mental practice techniques to improve mobility in people with MS.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
A confirmed diagnosis of multiple sclerosis (MS) by a neurologist
No history of relapse within the past 3 months and not currently experiencing a relapse
A score of 24 or higher on the standardized Mini Mental State Examination
Disqualifiers
Presence of serious health conditions affecting the muscles, heart, lungs, or metabolism that could interfere with participation
History of other neurological disorders, head injury, or chronic psychiatric conditions
Chronic pain lasting longer than six months
Significant muscle stiffness in the legs that may affect EMG recordings
Trial design
Parallel
Treatments tested in this trial
Action Observation + Motor Imagery
BehavioralParticipants will watch videos showing walking actions and will be instructed to mentally simulate the movement.
Nature Video
BehavioralParticipants will watch a video of nature scenes.
Treatment groups
Trial outcomes
Primary outcomes
Change in Tibialis Anterior and Gastrocnemius Medialis Muscle Activity Amplitude
Change in muscle activity amplitude (microvolts, µV) of tibialis anterior and gastrocnemius medialis during gait initiation measured by surface EMG.
Change in Tibialis Anterior and Gastrocnemius Medialis Muscle Activity Onset Latency
Change in onset latency (milliseconds, ms) of tibialis anterior and gastrocnemius medialis muscle activation during gait initiation measured by surface EMG.
Change in Step Length
Change in step length (centimeters, cm) during gait initiation measured by the GAITRite system.
Change in Step Time
Change in step time (seconds, s) during gait initiation measured by the GAITRite system.
Secondary outcomes
Motor Imagery Vividness
Kinesthetic and visual imagery vividness will be assessed using the Kinesthetic and Visual Imagery Questionnaire-20 (KVIQ-20), which includes 10 visual and 10 kinesthetic items (20 total). Each item is rated on a 5-point Likert scale (1 = no image/sensation, 5 = vivid image/sensation). Higher scores indicate better imagery ability.
Mental Chronometry Ratio
The ratio between imagined and actual Timed Up and Go (TUG) performance time (both measured in seconds, s) will be calculated. During imagined trials, participants will press a button to mark the start and end of the imagined movement sequence. A ratio closer to 1 indicates better temporal congruence between imagined (iTUG) and executed TUG performance.
Limb Laterality Recognition Performance
Right-left discrimination ability will be evaluated using the Recognise Foot App™ developed by the NOI Group™. Both accuracy (percentage of correct responses, %) and response time (milliseconds, ms) will be recorded.
Cognitive Status
General cognitive functioning will be screened using the Standardized Mini-Mental State Examination (SMMSE). The test is scored on a 30-point scale (0-30). Scores ≥24 indicate normal cognitive functioning.
Other outcomes
Perceived Task Load
The NASA Task Load Index (NASA-TLX) will be used to measure mental and physical workload related to the task. The scale consists of six subscales: mental demand, physical demand, temporal demand, performance, effort, and frustration. Each subscale is rated on a 0-100 visual analog scale, and an overall workload score is obtained by averaging the six subscales. Higher scores indicate greater perceived workload.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.