GOAT (Gait Observation of Achilles Tendon)

Sponsor
Nantes University Hospital
Study ID
NCT07467382
Status
Not Yet Recruiting

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Conditions

  • Spastic Paresis
  • Spinal Cord Injury
  • Stroke

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Accepted

Interventions

  • 3D Gait Analysis — DIAGNOSTIC_TEST
    Evaluation includes maximal and sub-maximal isometric plantar flexion on a dynamometer with electrical stimulation, 3D quantified gait analysis synchronized with surface electromyography and ultrasound, and 3D ultrasound volume acquisition.
  • Ultrasound — DIAGNOSTIC_TEST
    Evaluation includes maximal and sub-maximal isometric plantar flexion on a dynamometer with electrical stimulation, 3D quantified gait analysis synchronized with surface electromyography and ultrasound, and 3D ultrasound volume acquisition.
  • Dynamometry — DIAGNOSTIC_TEST
    Evaluation includes maximal and sub-maximal isometric plantar flexion on a dynamometer with electrical stimulation, 3D quantified gait analysis synchronized with surface electromyography and ultrasound, and 3D ultrasound volume acquisition.

Study Details

The purpose of this study is to evaluate the mechanical properties of the Achilles tendon (stiffness, length, volume) and the force production capacities of the gastrocnemius medialis muscle in patients with spastic paresis (post-stroke or incomplete spinal cord injury) compared to healthy subjects, during gait.

Key Dates

First listed
Mar 12, 2026
Start date
Jun 1, 2026
Status verified
May 2026
Primary completion
Dec 1, 2027
Completion
Dec 1, 2027

Study Design

Enrollment
60 participants (estimated)

Arms

  • Arm: Equinus pattern
    Patients with stroke or incomplete spinal cord injury exhibiting an equinus gait pattern (excessive plantar flexion in terminal stance).
  • Arm: Non-equinus pattern
    Patients with stroke or incomplete spinal cord injury exhibiting a non-equinus gait.
  • Arm: Healthy controls
    Age, gender, height, and weight-matched individuals without neurological pathology.

Primary Outcome Measure

Achilles Tendon Young's Modulus [ Time Frame: Day 1 (Baseline) ]

Central Contacts

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