Evaluation of a New Articulated Prosthetic Foot: Comfort, Safety and Biomechanics in Individuals With a Lower-Limb Amputation

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-80
SponsorVrije Universiteit Brussel

About this trial

This clinical investigation aims to evaluate a new articulated prosthetic foot during daily-life activities.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age: 18 - 80 years

Gender: Men and Women

Unilateral / bilateral

Transtibial / transfemoral / knee disarticulation / hip disarticulation

Disqualifiers

Any neurological disease

Excessive residual limb pain and wounds

Trial design

Design model

Crossover

Treatments tested in this trial

  • New Articulated Prosthetic Foot

    Device

    Participants with a lower-limb amputation will participate in experiments with the prosthetic device

  • Current Prosthetic foot

    Device

    Participants with a lower-limb amputation will participate in experiments with the prosthetic device

Treatment groups

120 Participants
are divided into 2 treatment groups
Group A: New Articulated Prosthetic FootExperimental treatment 1 intervention
Group B: Current Prosthetic footActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Comparative Scales: Comfort, Safety, Fatigue and Pain

Visual Analog Scale (VAS) during different activities: walking on flat ground, walking on slopes, climbing and descending stairs, and walking on uneven terrain. VAS is between 0 and 100. Higher scores indicate higher comfort, safety, fatigue or pain.

Time frame
Through study completion, a period of 3 hours.
2

Preference questionnaire: 5 points Likert scale

Comparison between the current foot and the new articulated foot in several areas : Mobility \& Functionality, Comfort \& Fit, Stability \& Safety, Mechanical Performance. Likert scale is between 1 and 5, where 1 indicates "Much worse", and 5 indicates "Much better".

Time frame
Through study completion, a period of 3 hours.
3

User satisfaction questionnaire: 5 points Likert scale

Quebec User Evaluation of Satisfaction with Assistive Technology (QUEST-device). Satisfaction scale is between 1 and 5, where 1 indicates "Not satisfied at all", and 5 indicates "Very satisfied".

Time frame
Through study completion, a period of 3 hours.

Secondary outcomes

1

Hill assessment index

Walking on slopes. Hill assessment index is between 0 and 11, where 0 indicates "Cannot do" and 11 indicates "Even steps without assistive device"

Time frame
Through study completion, a period of 3 hours.
2

Stair assessment index

Climbing and descending stairs. Index goes from 0 to 13, where 0 means "Cannot do" and 13 means "Without rail and assistive device, step over step pattern".

Time frame
Through study completion, a period of 3 hours.
3

Ankle Joint angles and angular velocities

Measured through onboard sensors (ankle encoder), in degrees and degrees/second.

Time frame
Through study completion, a period of 3 hours.
4

Temporal Gait parameters

Step time, stance and swing time, measured in seconds through on-board sensors (IMUs).

Time frame
Through study completion, a period of 3 hours.

Other outcomes

Sponsors and contacts

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