Stroke
Conditions
Keywords
Stroke, Ankle foot orthosis, Gait, Active orthosis
Brief summary
This research will present the biomechanical assessment of a robotic device for ankle assistance during gait on stroke's survivors with hemiparesis. Gait pattern through an optoelectronic motion capture system will be analyzed. Additionally, ergonomic and comfort aspects will be measured by an adapted spanish version of Quebec User Evaluation of Satisfaction with assistive Technology (QUEST)
Detailed description
This research will present the biomechanical assessment of a robotic device for ankle assistance during gait on stroke's survivors with hemiparesis. The device is composed by a passive orthosis structure which allows one degree of freedom (DOF) among the sagittal plane and it includes two servomotors attached to the user's foot through velcro strips. Gait pattern through an optoelectronic motion capture system will be analyzed. Additionally, ergonomic and comfort aspects will be measured by an adapted spanish version of Quebec User Evaluation of Satisfaction with assistive Technology (QUEST)
Interventions
DEVICEAssisted gait with a motorized ankle foot orthosis
The motorized ankle foot orthosis is a powered lower extremity assistance device with an actuated ankle joint. A novel control software has been design and implemented in this device, which allows precise joint movement and recording of data from training session.
Sponsors
Corporación de Rehabilitación Club de Leones Cruz del Sur
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
* Hemiparesis caused by a stroke. * Age between 18 and 65 years old. * Post-stroke time more than 6 months. * Independent walking. * Minimum 90 degrees of dorsiflexion. * Muscle tone in plantar flexors less than of equal to 3 on the Modified Ashworth scale. * Ability to follow instructions. * Voluntary participation.
Exclusion criteria
* Skin alterations in the lower limb. * Peripherical vascular alterations. * Alterations in sensitivity in the lower limb. * Pain of musculoskeletal origin in lower extremities or spine. * History of frequent falls. * Cancer * Previous history or suspected seizures. * Patient who does not sign the informed consent.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Gait Deviation Index without assistance | Baseline | Gait Deviation Index will be calculated for each patient using a 3D VICON infra-red camera system. |
| Gait Deviation Index assisted by motorized ankle foot orthosis | Day 1 | Gait Deviation Index will be calculated for each patient using a 3D VICON infra-red camera system. |
| Patient satisfaction with device: Quebec User Evaluation of Satisfaction with Assistive Technology | Day 1 | Measured with QUEST scale. The Quebec User Evaluation of Satisfaction with Assistive Technology (QUEST 2.0) is a 12-item outcome measure that assesses user satisfaction with two components, Device and Services. Scores of 1 indicate dissatisfaction and scores of 5 indicate high satisfaction |
Countries
Chile
Outcome results
None listed