Functional Outcome Measures With Vibrotactile Feedback to Prostheses

NCT ID: NCT02749643

Last Updated: 2018-06-27

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

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-04-30

Study Completion Date

2018-02-28

Brief Summary

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Investigators wish to evaluate the effects of adding VTF to upper limb prostheses on functional outcome measures of upper limb prosthetic users.

Detailed Description

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Investigators will perform three experiments:

1. Investigators will add vibrotactile feedback to prosthetic users during the execution of a standardized functional test and performance of simple grasping tasks, with a disruption to the normal visual feedback, and examine whether their performance and arm kinematics are improved with tactile feedback;
2. Investigators will examine the effects of adding the feedback to a prosthesis on the performance and visual attention during a dual task assignment in prosthetic users, and
3. Investigators will provide prosthetic users with the feedback, to use it at their natural surroundings for a week, and study the reported activity and satisfaction levels.

Conditions

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Unilateral Transradial Amputation

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Vibrotactile feedback

Vibrotactile system - comprises of force sensors, attached to the fingertips of the prosthetic hand, and a set of 8 vibration actuators attached to a fabric arm cuff. When the subject applies force on the sensors with his prosthetic hand, he receives a vibration on the skin of his arm. The sensors and actuators are connected to an electronic control board, which transforms the resistance from the sensors to an electric signal that activates the vibration actuators.

Group Type EXPERIMENTAL

Vibrotactile feedback system

Intervention Type DEVICE

Interventions

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Vibrotactile feedback system

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Unilateral transradial amputee
* Using a transradial myoelectric prosthesis
* Ability to follow simple instructions, understand and sign an informed consent form
* Normal or corrected eyesight

Exclusion Criteria

* Elbow or wrist disarticulation or partial hand amputations
* Neuropathy or skin ulcers on the amputated limb
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Tel Aviv University

OTHER

Sponsor Role collaborator

Hadassah Medical Organization

OTHER

Sponsor Role lead

Responsible Party

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Isabella Shvartz

Director, clinical research

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Sigal Portnoy, PhD

Role: STUDY_DIRECTOR

Hadassah Medical Organization

Locations

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Hadassah Medical Center

Jerusalem, , Israel

Site Status

Countries

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Israel

References

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Clemente F, D'Alonzo M, Controzzi M, Edin BB, Cipriani C. Non-Invasive, Temporally Discrete Feedback of Object Contact and Release Improves Grasp Control of Closed-Loop Myoelectric Transradial Prostheses. IEEE Trans Neural Syst Rehabil Eng. 2016 Dec;24(12):1314-1322. doi: 10.1109/TNSRE.2015.2500586. Epub 2015 Nov 13.

Reference Type RESULT
PMID: 26584497 (View on PubMed)

Raveh E, Portnoy S, Friedman J. Myoelectric Prosthesis Users Improve Performance Time and Accuracy Using Vibrotactile Feedback When Visual Feedback Is Disturbed. Arch Phys Med Rehabil. 2018 Nov;99(11):2263-2270. doi: 10.1016/j.apmr.2018.05.019. Epub 2018 Jun 20.

Reference Type DERIVED
PMID: 29935153 (View on PubMed)

Other Identifiers

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VTF- HMO-CTIL

Identifier Type: -

Identifier Source: org_study_id

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