Disorder of Shoulder Clinical Trial
Official title:
Rehabilitative Ultrasound Imaging: Measurements of Articular Movement of the Shoulder
The purpose of this study is to measure the amount of movement between the bones of the shoulder joint when mobilization techniques are applied by a physical therapist.
The purpose of this study is to image the articular joint movement of the glenohumeral joint
utilizing ultrasound imaging (USI). Specific aims include: 1) measurement of the distance
between the articular surfaces at rest; 2) measurement of the distance between the articular
surfaces during manually applied glides of those surfaces; and 3) analysis of any association
between the amount of glide and reported joint mobility, force application, or joint
position.
Subjects will be recruited from a population of convenience. After consenting to participate,
eligible subjects will complete a demographic questionnaire and pretesting of scapular and
shoulder mobility. Two days of testing will be scheduled. On the first day, three grades of
glenohumeral mobilization will be applied in the following directions: distraction, posterior
and inferior. A handheld dynamometer will measure force; ultrasound imaging will record
glenohumeral joint position. Each grade and direction will be repeated three times on the
right and the left shoulder. On the second day, the mobilizations will be repeated.
Measurements of humeral movement will be calculated from the ultrasound images.
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