Motions of the Bones and Activation of the Muscles of the Shoulder Girdle During Basic and Common Arm Movement
Status unconfirmed
Conditions studied: Rotator Cuff Tears
In brief
A comprehensive understanding of healthy shoulder motion is a valuable contribution to the academic literature and provides a basis of comparison for various shoulder pathologies and treatments. However, the medical community is primarily interested in how pathology affects shoulder function and the underlying musculoskeletal reasons for impaired function associated with specific pathologies. Rotator cuff tears (RCT) provide an excellent model to study shoulder biomechanics because RCTs can cause significant functional impairment and can be quantified in size and location using standard clinical imaging techniques. Upon completion of this study a comprehensive database of three-dimensional joint angles and EMG patterns of the structures of the shoulder joint complex of dominant and non-dominant during common activities of daily living will be available for healthy subjects and those of subjects whose dominant limbs are impaired by rotator cuff tears. These data will show normal muscle activations and movement patterns required to complete activities of daily living and compare them to the movement, and muscle activation patterns of persons who exhibit muscular and movement dysfunction due to rotator cuff tears.
Key facts
- Study ID
- NCT04571268
- Run by
- More Foundation
- People needed
- 45
- Starts
- 2019-01-28
- Expected to finish
- 2022-12-30
- Last updated by the study team
- 2021-10-06
Who can join
Age: 50 and older, up to 70. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- All subjects
- Right hand dominant
- English speaking
- Subjects who have read and signed IRB approved informed consent for the study.
- RCT subjects:
- Chronic right-side side shoulder pain with documented rotator cuff tear involving 2 or more tendons, and greater than 5cm as diagnosed by MRI
- Exhibit right rotator cuff disfunction without corresponding changes in the glenohumeral joint.
- Weakness of right rotator cuff isolated function based on clinical exam findings.
- Fatty infiltration grade 2 or more for involved muscle bellies based on MRI findings.
You may not qualify if…
- Unable to achieve 30º of external rotation and 140º of elevation in the scapular plane, where the limitations are not due to cuff tear associated pain.
- Diagnosis of osteoarthritis of the shoulder on their right side.
- History of musculoskeletal injury or disorder affecting any part of the right arm except the rotator cuff of the shoulder.
- History of musculoskeletal injury or disorder affecting any part of the left arm.
- Any musculoskeletal injury or disorder which prevents the subject standing unassisted for an extended period.
- Parkinson's disease.
- History of cerebral vascular accident.
- Pregnant.
- Current Incarceration.
Where it is running
- MORE Foundation — Phoenix, Arizona, United States (enrolling)
Full record on ClinicalTrials.gov
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