Characterizing Ankle Function During Sloped Locomotion for Prosthesis Development

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

60 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-06-30

Study Completion Date

2020-09-30

Brief Summary

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The proposed study aims to characterize biological ankle joint function during walking and running on slopes in order to further develop advanced powered ankle-foot prostheses. Ankle joint torque and angle data will be collected from non-amputees while walking and running at multiple speeds and slopes. This data will be used to develop control parameters for a powered ankle-foot prosthesis. Then, these parameters will be implemented and tested in a powered prosthesis worn by people with below the knee amputations.

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Detailed Description

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Conditions

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Traumatic Amputation of Lower Extremity

Study Design

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Observational Model Type

OTHER

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Non-amputee

People without an amputation will be recruited to participate in the study.

No interventions assigned to this group

Below the knee amputee

People with a unilateral transtibial amputation will be recruited to participate in the study.

Powered ankle-foot prosthesis

Intervention Type DEVICE

Interventions

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Powered ankle-foot prosthesis

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

Study 1:

\- Between 18-60 years old.

Study 2 and 3:

* Between 18-60 years old.
* At least 1 year post-amputation
* no current problems with prosthesis or residual limb
* At least a K3 level of ambulation

Study 4:

\- Between 18-45 years old

Study 5:

* Between 18-45 years old
* At least 1 year post-amputation
* no current problems with prosthesis or residual limb
* Experience running with a passive prosthesis
* At least a K4 level of ambulation