ENMS With Balance Feedback for Post-stroke Ankle-foot Rehabilitation

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-70
SponsorThe Hong Kong Polytechnic University

About this trial

In this work, a novel hybrid ankle-foot robot is designed for gait rehabilitation after stroke, i.e., exoneuromusculoskeleton with balance sensing feedback (ENMS-BSF) by integrating the advantages of soft pneumatic muscle, functional electrical stimulation, exoskeleton and foot balance feedback in one system. With the assistance of the ENMS-BSF the foot drop and foot inversion could be corrected with improved muscle coordination in the paretic lower limb. The device is wearable and light-in-weight for unilateral application during walking. It is hypothesized that with the intervention of the ENMS-BSF the gait pattern of persons after stroke can be improved with long-term rehabilitative effects.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

At least 6 months after the onset of stroke

Have sufficient cognition to follow simple instructions, as well as understand the content and purpose of the experiment (Mini-Mental State Examination (MMSE) score >21).

Have mild-to-moderate motor impairment in the affected lower limb with foot drop but be capable of standing and walking without manual assistance.

Fugl-Meyer Assessment (FMA), total score on the lower limb <20

Disqualifiers

The exclusion criteria will be server spasticity at the ankle joint measured by Modified Ashworth Score (MAS) >3.

Receiving other lower limb rehabilitative interventions at the same time

Trial design

Design model

Parallel

Treatments tested in this trial

  • ENMS-BSF assisted gait training

    Device

    1. ENMS-BSF will correct the foot-drop and foot inversion during post-stroke walking. 2. Each participant will receive 20 sessions device assisted training, with an intensity of 3-5 sessions/week, 1 hr/session. 3. In each session, a participant will complete the device-assisted walking on flat ground with a natural speed and with the aid of a four-pronged cane.

Treatment groups

60 Participants
are divided into 3 treatment groups
Group A: ENMS-BSF assisted gait trainingExperimental treatment 1 intervention
Group B: Partial ENMS-BSF assisted gait trainingActive comparator 1 intervention
Group C: Sham ENMS-BSF assisted gait trainingSham comparator 1 intervention

Trial outcomes

Primary outcomes

1

Change in Fugl-Meyer Assessment

To evaluate the voluntary motor function of the lower limb after the interventions

Time frame
before, one day after, and 3 months after the training

Secondary outcomes

Other outcomes

Sponsors and contacts

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The Hong Kong Polytechnic University

Lead sponsor

Innovation and Technology Commission, Hong Kong

Collaborator

Prince of Wales Hospital, Shatin, Hong Kong

Collaborator