University of Dayton
The purpose of this study is to assess the immediate effects of a commercially available non-FDA regulated powered hip flexion assist device (Hypershell X, Shenzhen, China) on walking ability in persons with MS. The main question it aims to answer is: Does a powered hip flexion device provide immediate improvements in walking ability over short distances for people with MS?
Individuals with multiple sclerosis (MS) frequently experience problems with walking that may include difficulty with advancing the leg during the swing phase of gait which can lead to a loss of independence and a higher risk of falls. To improve walking ability in this population, devices such as ankle-foot orthoses (AFO) and functional electrical stimulation (FES) are commonly used. However, recent advances in technology and robotics have led to the development of affordable and commercially available battery powered exoskeletons marketed towards improving activities such as hiking, running…
Inclusion Criteria: * Age 18-80 * Diagnosis of relapsing remitting, primary progressive or secondary progressive MS * Unilateral or bilateral hip flexion weakness (Manual muscle testing score of 3 or less) * Ability to walk at least 30 meters without requiring rest and without physical support or assistance from another person. * Waist circumference 26-48", Height 5 '- 6'2", Weight 100-230lbs Exclusion Criteria: * Prior regular use of a hip flexion orthosis within the past 6 months. * Cognitive or communication deficits that would limit ability to participate safely. * Significant pain or d…
Participants will perform a series of 10 meters walks while wearing the hip flexion assist device under the following conditions. 1) No assistance (passive mode) 2) 25% power assistance 3) 50% power assistance 4) 75% power assistance During the trial subjects will wear motion sensors that provide the following gait parameters: speed, step and stride length, foot clearance, foot angle at heel strike, circumduction, single and double support time.
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