Prediction of Functional Disability in Subjects With Scapular Dyskinesis

Background: Patterns of scapular dyskinesis have unique scapular kinematics and associated muscular activation. The characteristics of scapular dyskinesis may be associated with functional disability. The investigators investigated whether the level of shoulder function and primary dysfunction items were different in each unique pattern of scapular dyskinesis. The factors associated with shoulder dysfunction in different patterns of scapular dyskinesis were identified.

Methods: Participants with unilateral shoulder pain were classified as having a single dyskinesis pattern (inferior angle prominence, pattern I; medial border prominence, pattern II) or a mixed dyskinesis pattern (patterns I+II). Clinical measurements with the Flexilevel Scale of Shoulder Function (FLEX-SF score), shoulder range of motion, anterior/posterior shoulder tightness, and pectoralis minor index were recorded. These clinical measurements, 3-D scapular kinematics (electromagnetic-based motion analysis), and associated muscular activation (electromyography on the upper, middle, and lower parts of the trapezius and serratus anterior muscles) during arm elevation were analyzed for associations with functional disability.

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Key information

Conditions

Scapular Dyskinesis

Age range

18 year–50 year

Sex eligibility

All sexes

Study type

Observational

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Subjects were from 18 to 50 years old and had unilateral shoulder pain around the shoulder complex, including the glenohumeral, scapulothoracic, sternoclavicular, and acromioclavicular regions, while performing shoulder movement.

Exclusion criteria

Subjects were excluded if they had a history of shoulder dislocation, fracture, or shoulder surgery within the past 1 year, or a history of direct contact injury to the neck or upper extremities within the past 1 month. Subjects who had neurological disorders or demonstrated pain (VAS>3) during the overall testing procedures were also excluded.

Treatment and study plan

Primary outcomes

Shoulder Function Questionnaire

Time frame: one year

Shoulder function of participants was assessed with the Flexilevel Scale of Shoulder Function (FLEX-SF score)
Range of Motion on shoulder, range in degrees

Time frame: one year

Shoulder range of motion of participants was assessed by a physiotherapist using goniometer to measure
Pectoralis Minor Index (PMI)

Time frame: one year

The length between the inferomedial aspect of the coracoid process and the caudal edge of the fourth rib at the sternum was measured by a physiotherapist using a meter, and then the parameter was divided by participants' height to calculate for PMI

Sponsors and collaborators

Lead sponsor

National Taiwan University Hospital

Other

Registry information

Official study title

Prediction of Functional Disability in Subjects With Scapular Dyskinesis: Shoulder Tightness, Forward Shoulder Posture, Joint Range of Motion, Scapular Kinematics and Associated Muscular Activity

Important dates

Study start: 2012
Primary completion: 2013
Study completion: 2014
First posted: Oct 26, 2015
Registry last updated: Oct 26, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed