Gait alteration is frequent in MS and limitation in walking ability is a major concern in MS patients. The development of wearable device offers the opportunity to collect data during daily activity including walking.
Umanit and LMJ (Nantes university) has developed a device call eMSgait to assess walking ability in MS patients individuals (eg MS patients). This device consists in a commercialized IMU sensor (MetaMotionR Sensor, Mbientilab) worn at the right hip, a smartphone app and dedicated algorithm/mathematical model to extract raw sensor data and calculate individual gait pattern (IGP). This IGP consists of a curve, based on quaternion and representing the rotation recorded by the IMU during an average gait cycle. Pursue first pilot work assessing information from IGP on gait alteration in MS.
Study Type
OBSERVATIONAL
Enrollment
44
IMU sensor (as part of eMSGait device) worn at the hip during T25FW
Nantes University Hospital
Nantes, Loire-Atlantique, France
Correlation with disability
Correlation of gait measures (mean amplitude of walking cycles (m), mean duration of walking cycles (s), Stance swing phase ratio) obtained during a walk of 25 feet with Expanded Disability Status Scale (EDSS). EDSS is an ordinal scale measuring disability and ranging from 0 (normal examination) to 10 (death due to MS) in a 0,5-point increments from score 1.
Time frame: One time point per patient (inclusion)
Correlation with neurological function
Pyramidal, cerebellar and sensory functions are assessed with Kurtzke functional system scores which are based on neurological examination. Scores of the Pyramidal and sensory systems range from 0 (normal) to 6 . Cerebellar system scores range from 0 (normal) to 6. Cerebellar system scores range from 0 (normal) to 5
Time frame: One time point per patient (inclusion)
Correlation with gait speed
Timed 25-Foot Walk (T25FW). T25FW measures the time needed to complete a 25-foot walk. Two trials are averaged
Time frame: One time point per patient (inclusion)
Correlation with lateralization
Lower limb lateralization (right vs left)
Time frame: One time point per patient (inclusion)
Correlation with disability location
Upper, lower limb, trunk MS symptoms location
Time frame: One time point per patient (inclusion)
Correlation with MS symptoms severity
MS symptoms severity quote as none, mild moderate severe
Time frame: One time point per patient (inclusion)
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Reliability of sensor measures
Gait parameters record during a 25-foot walk repeated twice at 5 min apart.
Time frame: At the inclusion
Developement of dedicated algorithm to improve signal processing from IMU.
Number of detected gait cycles during a foot walk.
Time frame: Day 1