Analysis of the Motion Activity Manual Wheelchair Users

Study Overview
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Brief Summary
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Currently, there is no system in place to allow manual wheelchair users to know their quantities of movement activities and the intensity of effort to be provided during these propulsion movements. Based on recent work by Routhier et al. in 2017, and in light of the scientific literature related to wheelchair propulsion, it would seem appropriate to validate the use of inertial units as tools to quantify and categorize the intensity of manual wheelchair propulsion.

Detailed Description
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The investigator hypothesize that an inertial unit positioned on the wheelchair wheel has the same detection rate of the propulsion cycle as a dynamometric wheel (step 1). In addition, the investigator hypothesize that the categorization of the detected propulsion cycle as a function of force intensity is similar between the angular deceleration of the wheel during propulsion calculated from the inertial unit and the external mechanical power calculated from a dynamometric wheel (step 2).

Official Title
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Analysis of the Motion Activity Manual Wheelchair Users

Conditions
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Spinal Cord Injuries

Intervention / Treatment
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* Other: cycle detection
* Other: detection of effort intensity


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: For the healthy user group volunteers: Men or women over 18 years of age, An experience of at least 2 hours using the manual wheelchair, Subject who has signed an informed and written consent, Affiliation to a social security system. For the spinal cord injured user group: Men or women over 18 years of age, Injured Medullary users of manually propelled wheelchairs for daily locomotion (at least 30/100 at WST on travel items), Subject who has signed an informed and written consent, Affiliation to a social security system. Exclusion Criteria: Patient refusing to participate in the study, Manual wheelchair users with propulsion assistance system, Major cognitive disorders, Unbalanced cardiovascular disease, Pressure sores and unhealed palm lesions, Asthma to effort, Progressive etiologies: tumor, infectious, inflammatory and associated - - pathologies: head trauma, amputation, Patient under guardianship or curatorship, Pregnant or breastfeeding woman.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Medullary injured<br>Injured Medullary users of manually driven wheelchairs for daily locomotion | Other: detection of effort intensity<br>* 6-minute test on an urban course with 2 instruments (dynamometric wheel and inertial units) on a wheelchair<br>|
| Healthy volunteers<br>Healthy volunteer with at least 2 hours' experience using a manual wheelchair | Other: cycle detection<br>* 6-minute test on a treadmill at pedestrian speed (5km/h) with 2 instruments (dynamometric wheel and inertial centre) on a standardised wheelchair<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Confirm the identification of propulsion cycles during a journey at constant speed (5km/h) | Measurement of the detection rate of propulsion cycles | 18 months | 
| Confirm the classification of propulsion cycles by effort intensity | Classification rate of propulsion cycles | 18 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Study of the association between the propulsion force and the coefficient of the deceleration slope | The association will be measured with propulsion force by the torque wheel and the coefficient of the deceleration slope quantified by the inertial unit | 18 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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detection rate of propulsion cycles