Effects of Myoelectric Channel Count and Targeting for Upper Limb Prosthetic Control

Launched by LIBERATING TECHNOLOGIES, INC. · May 30, 2025

Keywords

ClinConnect Summary

This clinical trial is looking at how different setups of myoelectric sensors can help people with upper limb amputations use their prosthetic arms more effectively. Specifically, researchers want to see if changing the number of sensors and how they are placed on the arm can improve the ability of people to perform everyday tasks, like moving objects. The study will involve individuals aged 18 and older who have lost an arm below the elbow and have experience using myoelectric prostheses.

Participants in the trial will attend up to five lab sessions that last about four hours each. They will try out different sensor setups while completing various tasks and playing virtual games to see how well they can use their prosthetic arms. To be eligible, participants need to have one arm missing below the elbow, have been using a prosthesis for at least six months, and be able to follow instructions. It's important for them to be able to wear a well-fitting prosthetic and understand what is required of them during the study. This trial is a great opportunity to potentially enhance the use of prosthetic technology for better daily living.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Unilateral transradial level limb absence
• • Current or past user of myo-electric controlled prostheses
• • Six months or more post-amputation
• • Have adequate limb length such that a wrist rotation device can fit in the check socket
• • Well-fitting socket as determined by a Socket-Comfort Score of 6 or above
• • Capable of wearing and operating a prosthesis with a wrist rotator and multi-articulating hand
• • Capable of understanding and following multi-step instructions and completing the tasks as described
• • English speaking
• Exclusion Criteria:
• • Significant new injury that would prevent use of a prosthesis: The ability to consistently wear a prosthesis and perform activities of daily living and specific performance tasks is necessary to evaluate the relative benefits of the interventions.
• • Cognitive impairment sufficient to adversely affect understanding of or compliance with study requirements, ability to communicate experiences, or ability to give informed consent: The ability to understand and comply with requirements of the study is essential for the study to generate useable, reliable data. The ability to obtain relevant user feedback through questionnaires and informal discussion adds significant value to this study.