Home/Work, Community Mobility Skills in the ReWalk Exoskeleton in Persons With SCI

Conditions:Hospital, Hospital, Orthopedic
Therapuetic Areas:Orthopedics / Podiatry, Other
Age Range:18 - 65
Start Date:October 2013
End Date:September 2017
Contact:Pierre K Asselin, MSBioMedEng

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Assessment of Home/Work Simulation Tasks and Community Mobility Skills in the ReWalk Powered Exoskeleton in Persons With Spinal Cord Injury

The overall goal of this project is to determine if non-ambulatory persons with spinal cord
injury (SCI) who have already participated in at least 20 sessions of ReWalk training can be
further trained to achieve more advanced skills for use in the home or work place
environments and outdoor community mobility skills in the ReWalk exoskeleton.

Evaluation criteria will consist of the level of assistance, number of sessions and time to
perform each of the tasks. Because some of these tasks have never been performed in an
exoskeleton there is no standardized information to set a goal. As such, level of assistance
and time to complete those tasks will be recorded in each participant for a descriptive
analysis. Other tests, such as the six-minute walk test (6mWT), 10 meter walk test (10mWT)
and timed up and go (TUG) have a range of specific timed values that have been measured in
the exoskeleton by our investigators and others. These exoskeletal-assisted walking tests
have standardized criteria on which the participants will be evaluated.

Participants will attend three to four, one to two-hour sessions per week for a total of 20
sessions in six weeks. Each session will consist of exoskeletal-assisted skill practice
during standing and walking mobility training. In order to determine the number of session
to learn the tasks, measurements will be performed one time weekly for the task-specific
skills and walking tests and again at the end of 20 sessions.

Participants will tested in the exoskeleton for ability to perform certain task-specific
indoor and outdoor mobility skills.

Advanced indoor skills include, but are not limited to:

1. Performance on a an indoor six-minute walk test (6minWT) and ten meter walk test
(10mWT) on a smooth floor and on carpet;

2. Timed up and go test (TUG) performance indoors on a smooth floor and on carpet;

3. Home/work skills include: manipulating items on a counter top, retrieving an item from
an overhead cabinet, and/or retrieving an object from a refrigerator;

4. Door navigation skills include: a push button door, revolving door and/or a non-powered

5. Elevator Skills include: pressing the call button outside an elevator, navigate the
elevator doors, pressing the floor selection buttons in an elevator, and/or exiting the
elevator doors; and

6. Exoskeletal-assisted stair ascent and descent.

Advanced outdoor skills include, but are not limited to:

1. 10 mWT and 6minWT performance outdoors on concrete, asphalt, uneven surfaces, and

2. Exoskeletal-assisted walking on incline slopes (assessed as time to navigate a
specified distance) for: up slight slope, down slight slope, navigate up curb cut-out,
and/or navigate down curb cut-out.

3. Ability to navigate up and/or down a curb (assessed as level of assistance required).

Note: Additional skills may be tested and recorded as per each individual's ability and

Inclusion Criteria:

- Males or females with spinal cord injury (SCI) who have already participated in at
least 20 ReWalk training sessions.

Exclusion Criteria:

1. Diagnosis of neurological injury other than SCI including: Multiple sclerosis (MS),
Stroke, Cerebral Palsy (CP), Amyotrophic lateral sclerosis (ALS), Traumatic Brain
injury (TBI), Spina bifida, Parkinson's disease (PD), or other neurological condition
that the study physician considers in his/her clinical judgment to be exclusionary;

2. Severe concurrent medical disease, illness or condition;

3. Unhealed fractures;

4. Systemic or peripheral infection;

5. Atherosclerosis, congestive heart failure, or history of myocardial infarction;

6. Trunk and/or lower extremity pressure ulcers;

7. Other illness, that the study physician considers in his/her clinical judgment to be

8. Severe spasticity (defined by an Ashworth score of >4.0 or clinical impression of the
study physician or physical therapist);

9. Significant contractures or heterotropic ossification of the lower extremities that
prevent flexion and extension of the joint;

10. Distal femur and/or proximal tibia bone mineral density less than 0.59 cm2.

11. Femoral neck or the total proximal femur bone mineral density T-scores < -3.5;

12. Psychopathology documentation in the medical record or history of that may conflict
with study objectives;

13. Hypertension (Systolic Blood Pressure >140, Diastolic Blood Pressure >90); and/or

14. Pregnancy and/or lactating females.
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Bronx, New York 10468
Bronx, NY
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