Characterization of Fingertips Using MRI Images (FINGERS-COMPRESSION)

Not Applicable

Completed

• Conditions: Healthy
• Interventions: Other: Compression of the fingertip under MRI.

• Registration Number: NCT03072420
• Lead Sponsor: Hospices Civils de Lyon

Brief Summary

The objectives was to obtain MRI images of the index finger of the subjects without loading and with loadings (normal and shear forces from 1 to 4N).

Detailed Description

Not available

Study Timeline

• Study Start: 2015-07-21
• Primary Completion: 2015-07-24
• Study Completion: 2015-07-24
• Study First Submitted: 2017-02-21
• Study First Submitted QC: 2017-03-01
• Study First Posted: 2017-03-07
• Status Verified: 2017-07
• Last Update Submitted: 2017-07-06
• Last Update Posted: 2017-07-11

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 8

Inclusion Criteria

• Active voluntary healthy adult aged 18 to 65, affiliated to a social security scheme
• Stature between 170 and 179cm
• Body mass index (BMI) between 20 and 25
• No previous hand musculoskeletal disorders
• Cognitive level compatible with oral communication, adherence to instructions and understanding of gestures
• Having signed the consent to participate in the study

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Exclusion Criteria

• the subject presents a neurological or orthopedic disorder ;
• the subject presents a pathology that could disturb the task ;
• the subject has an Magnetic Resonance Imaging (MRI) contraindication (wears a pacemaker, insulin pump, prothesis, etc, has claustrophobia, ...)

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Group no manual work or activity	Compression of the fingertip under MRI.	Subject with an office or student job.
Group manual work	Compression of the fingertip under MRI.	Subject working in a manual or predominantly manual.

Primary Outcome Measures

Name	Time	Method
Average fingertip deflection under compression	Day 1	The different stresses will be: compression of the fingertip by a static loading on the phalanx distal of the index of the subjects; Then also a shear stress in the transverse direction of the finger.

Secondary Outcome Measures

Name	Time	Method
Average fingertip dimensions	Day 1	In order to develop realistic biomechanical models of the fingers allowing the simulation of the grip, an essential step will be the experimental mechanical characterization of the distal phalanges.

Trial Locations

Locations (1)

IFSTTAR; 🇫🇷 Bron, France