Body Schema Alterations in Musculoskeletal Disorders : Effect of Laterality

Completed

• Conditions: Carpal Tunnel Syndrome; Musculoskeletal Disorder; Rotator Cuff Tendinitis; Chronic Low Back Pain
• Interventions: Other: hand laterality judgment task

• Registration Number: NCT03567109
• Lead Sponsor: University Hospital, Angers

Brief Summary

This study assess ocular movements in a hand laterality judgment task in a population of musculoskeletal disorders. Reaction time, error rate and visual strategy are compared between musculoskeletal disorders and healthy patients, and between the different locations of the disorder.

Detailed Description

Musculoskeletal disorders are a major public health issue. Recent studies showed that body schema alterations are involved in the chronification of those disorders. Those alterations bring the opportunity for new exploration or therapeutic solutions. Our hypothesis is that musculoskeletal disorders lead to motor imagery alterations relative to body schema disorders. Reaction time extension et error rate increase in a hand laterality judgment task would confirm that hypothesis. It is assumed that body schema alterations of patients suffering from musculoskeletal disorders could change with localisation, dependant on disorder's laterality and distality.

It is a monocentric, prospective, case-control trial, with 4 subgroups of 30 patients : shoulder rotator cuff tendinopathy, carpal tunnel syndrome, chronic low back pain, healthy subjects. We compare reaction time and error rate on a hand laterality judgement task. In that task, participants are asked to identify hand right or left laterality, when those hand is presented on a computer screen, by answering with the keyboard. Hands are shown on palmar or dorsal view and with 12 different angles of rotation. An eye-tracking device register participant eye movements during the task.

Study Timeline

• Study First Submitted: 2018-06-06
• Study First Submitted QC: 2018-06-21
• Study First Posted: 2018-06-25
• Study Start: 2018-07-13
• Primary Completion: 2022-07-12
• Study Completion: 2022-07-12
• Status Verified: 2024-06
• Last Update Submitted: 2024-06-10
• Last Update Posted: 2024-06-11

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 71

Inclusion Criteria

• normal visual acuity
• social security affiliation
• signing consent
• rotator cuff tendinopathy, chronic low back pain, carpal tunnel syndrome or healthy subject

Exclusion Criteria

• recent trauma or surgery
• psychiatric or neurological disorder
• psychotropic consumption
• previous experience with motor imagery
• bad french comprehension
• protected persons
• other painful affection than the inclusion criteria

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
carpal tunnel syndrome	hand laterality judgment task	unilateral carpal tunnel syndrome, confirmed by electromyogram, 3 months or more duration
chronic low back pain	hand laterality judgment task	non specific chronic (3 months) low back pain
control	hand laterality judgment task	healthy subjects
Shoulder rotator cuff tendinopathy	hand laterality judgment task	unilateral rotator cuff tendinopathy, 3 months or more duration, confirmed by imagery,

Primary Outcome Measures

Name	Time	Method
error rate at the hand laterality judgment task	1 hour	number of errors divided by the total number of hands presented
reaction time	1 hour	time to press on the keyboard the answer "Right" or "Left" after the hand was presented

Secondary Outcome Measures

Name	Time	Method
visual strategy	1 hour	assessment of the image's areas most fixed with the eyes

Trial Locations

Locations (1)

CHU Angers; 🇫🇷 Angers, France