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NCT Number: NCT07629674

Visual Stimulation Through Video Therapy to Enhance Lower Limb Motor Recovery After Stroke

This pilot study evaluates video therapy for lower limb motor recovery after stroke, an approach remains insufficiently documented.

This single-center pilot study uses a Single-Case Experimental Design (SCED) to evaluate the effects of intensive video therapy combined with conventional rehabilitation in patients with subacute or chronic post-stroke hemiparesis. Twelve participants will be included and allocated to different baseline durations according to a multiple-baseline SCED design.

The primary outcome is functional mobility, assessed using the Timed Up and Go (TUG) test, measured repeatedly throughout baseline, intervention, and follow-up phases.

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Key information

Conditions

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Service de Médecine Physique et réadaptation

Saint-Etienne, 42100, France

Location status: Recruiting

Location contact

Diana RIMAUD, PhD

CONTACT

[email protected]

04 77 12 04 67 ext. 33

Etienne OJARDIAS, MD

PRINCIPAL_INVESTIGATOR

Hugo BESSAGUET, MD

SUB_INVESTIGATOR

Julia TOULY, MD

SUB_INVESTIGATOR

Pascal GIRAUX, MD, PhD

SUB_INVESTIGATOR

About this study

Stroke frequently results in persistent lower limb motor impairment affecting gait and functional mobility (1-2). While video-based therapies have shown proof of concept for upper limb rehabilitation after stroke, their effectiveness for lower limb motor recovery remains insufficiently documented (3-5).

This study is a single-center pilot trial using a Single-Case Experimental Design (SCED) with multiple baseline durations, chosen to account for the high interindividual variability observed in subacute and chronic post-stroke patients undergoing rehabilitation (6). This design allows each participant to serve as their own control through repeated measurements over time (6).

Participants are included between 1 month and 1 year post-stroke while receiving inpatient or outpatient rehabilitation in a Physical Medicine and Rehabilitation department. All participants initially undergo a control phase combining standardized rehabilitation with sham video therapy (placebo condition). The duration of this baseline phase is randomized (1, 2, or 3 weeks) across participants.

The experimental phase consists of 5 weeks of intensive video therapy added to usual care, with five sessions per week. A post-intervention sham phase is followed by a follow-up period lasting up to 21 weeks post-intervention, with repeated assessments conducted at weeks 13, 17, and 21 to evaluate maintenance of treatment effects.

The primary objective is to evaluate changes in functional mobility, assessed using repeated measurements of the Timed Up and Go test. Secondary objectives include evaluation of gait endurance, motor impairment, muscle tone, balance, and quality of life

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • - First or recurrent hemispheric ischemic or hemorrhagic stroke in the subacute or chronic phase (from 1 month to 1 year post-stroke).
  • Currently receiving rehabilitation care in a Physical Medicine and Rehabilitation (PM&R) department
  • Able to walk 3 meters back and forth, with or without an assistive device.
  • Provided informed consent, signed jointly with the investigator.

Exclusion criteria

  • - Severe hemispatial neglect.
  • Severe spasticity impairing proper positioning (Modified Ashworth Scale > 3).
  • Severe general disabling medical conditions.
  • Associated cerebellar syndrome.
  • Major comprehension disorders, psychiatric illness, or cognitive impairments that could interfere with study participation.
  • Participants under full legal guardianship (tutorship).
  • Pregnant or breastfeeding women.

Treatment and study plan

Active Videotherapy

Device

During active videotherapy sessions, the image inversion program is activated, superimposing movements of the non-paretic limb onto the paretic limb, which is hidden behind the screen. Participants are instructed to imagine and attempt to reproduce the observed movements using their paretic limb. Each participant completes 25 sessions over 5 weeks (5 sessions per week).

Sham videotherapy

Device

During sham videotherapy sessions, participants are seated facing the IVS4 screen without activation of the image inversion program. Participants perform lower limb movements while directly viewing their paretic limb in real time on the screen, corresponding to an action observation condition without visual illusion.

Primary outcomes

  1. 1. Timed Up and Go Test (TUG)

    Time frame: 5-week

    Time required to stand up from a chair, walk 3 meters, return, and sit down (in seconds)

Secondary outcomes

  1. 2. 2-Minute Walk Test (2MWT)

    Time frame: Weeks 1, 2, 3, 8, 13, 17, and 21

    Walking endurance assessed by the distance walked in 2 minutes (in meters).

  2. 3. Fugl-Meyer Assessment - Lower Limb Section

    Time frame: Weeks 1, 2, 3, 8, 13, 17, and 21

    Motor function of the hemiplegic lower limb, assessed with the Fugl-Meyer scale (score from 0 to 34)

  3. 4. Muscle Strength - Foot Dorsiflexors and extensors

    Time frame: Weeks 1, 2, 3, 8, 13, 17, and 21

    Muscle strength of the foot dorsiflexors and extensors, measured in Newtons using a handheld dynamometer

  4. 5. Muscle Tone - Modified Ashworth Scale (MAS)

    Time frame: Weeks 1, 2, 3, 8, 13, 17, and 21

    Spasticity assessment of dorsiflexors and extensors of the foot using the Modified Ashworth Scale (score 0-5).

  5. 6. Muscle Tone - Modified Tardieu Scale

    Time frame: Weeks 1, 2, 3, 8, 13, 17, and 21

    Spasticity assessment of dorsiflexors and extensors of the foot using the Modified Tardieu Scale (score 0-5).

  6. 7. Postural Balance - PASS (Postural Assessment Scale for Stroke Patients)

    Time frame: Weeks 1, 2, 3, 8, 13, 17, and 21

    Balance ability assessed using the PASS scale (score 0-36).

  7. 8. Quality of Life - Stroke Specific Quality of Life Scale (SS-QOL)

    Time frame: Weeks 1, 2, 3, 8, 13, 17, and 21

    Quality of life assessed with the SS-QOL scale (score range: 49-245).

Study contacts

Contact information is provided by the study sponsor or research team.

Etienne OJARDIAS, Dr

CONTACT

[email protected]

0477127018 ext. 33

Sponsors and collaborators

Lead sponsor

Centre Hospitalier Universitaire de Saint Etienne

Other

Registry information

Official study title

Use of Intensive Visual Stimulation Through Video Therapy to Enhance Lower Limb Motor Recovery After Stroke (SIVIMI). A Single-Center Pilot Study Using a Single-Case Experimental Design (SCED)

Acronym: SI-VI-MI

Important dates

Study start
2026
Primary completion
2027
Study completion
2028
First posted
Jun 5, 2026
Registry last updated
Jul 13, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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