Development of a Robotic Ankle Assist Device

NCT ID: NCT04516343

Last Updated: 2025-04-04

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

31 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-01

Study Completion Date

2024-08-31

Brief Summary

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The overall objectives of this work is to establish feasibility of a robotic ankle assist device (RAAD) to improve mobility in free-living settings and to establish the RAAD as an effective tool to provide increased dose and precision of targeted ankle therapy.

The first specific goal is to assess the benefits of repeated gait training with RAAD assistance. Individuals with CP will participate in a 4-week assistance intervention and mobility outcomes will be quantified pre and post intervention.

The second specific goal is to separately assess the benefits of repeated gait training with RAAD resistance. Individuals with CP will participate in a 4-week resistance intervention and mobility outcomes will be quantified pre and post intervention.

Assessed separately, it is hypothesized that both assistance and resistance training will improve mobility outcomes.

Detailed Description

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Conditions

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Cerebral Palsy

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

This study has two experiments. In experiment I, participants will be recruited to complete gait training with the RAAD under assistance mode. In experiment two, participants will be recruited to complete gait training with the RAAD under resistance mode.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Therapist supervised assistance training

Assistance training with the RAAD under therapist supervision.

Group Type EXPERIMENTAL

Robotic Ankle Assist Device (RAAD)

Intervention Type DEVICE

The RAAD (Robotic Ankle Assist Device) is an intelligent, powered ankle device designed to increase independence, mobility, and deliver gait training to children with movement disorders, such as CP

Therapist supervised resistance training

Resistance training with the RAAD under therapist supervision.

Group Type EXPERIMENTAL

Robotic Ankle Assist Device (RAAD)

Intervention Type DEVICE

The RAAD (Robotic Ankle Assist Device) is an intelligent, powered ankle device designed to increase independence, mobility, and deliver gait training to children with movement disorders, such as CP

Interventions

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Robotic Ankle Assist Device (RAAD)

The RAAD (Robotic Ankle Assist Device) is an intelligent, powered ankle device designed to increase independence, mobility, and deliver gait training to children with movement disorders, such as CP

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

Diagnosis of cerebral palsy. Any sex, race, ethnicity or socioeconomic status. GMFCS level I, II, or II. Ability to walk for at least 6 minutes (assisted or unassisted). Age between 8-18 years. Height/weight/BMI between the 5th - 95th percentile of children with CP.

Able to understand and follow simple directions. Able to complete 5 heel raises with minimal assistance (balance only). At least 20 degrees of passive ankle plantar flexion range of motion.

Exclusion Criteria

Knee extension or ankle dorsiflexion contractures greater than 15 degrees. Health condition or diagnosis other than CP that would affect safe participation.

Orthopedic surgery completed in the prior 12-months. Current enrollment in a conflicting research study.
Minimum Eligible Age

8 Years

Maximum Eligible Age

21 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Northern Arizona University

OTHER

Sponsor Role collaborator

Gillette Children's Specialty Healthcare

OTHER

Sponsor Role collaborator

Shirley Ryan AbilityLab

OTHER

Sponsor Role collaborator

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

NIH

Sponsor Role collaborator

BiOMOTUM, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ray Browning, PhD

Role: PRINCIPAL_INVESTIGATOR

BiOMOTUM, Inc.

Locations

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Northern Arizona University

Flagstaff, Arizona, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Document Type: Informed Consent Form

View Document

Other Identifiers

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1R44HD104328

Identifier Type: NIH

Identifier Source: org_study_id

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