A 17-year-old right-hand dominant high school female volleyball player presents to an outpatient physical therapy clinic with complaints of diffuse right posterior shoulder pain and weakness. Weakness is most prominent with shoulder external rotation. She reports gradual weakness and pain over the last month and notes that her shoulder blades no longer look symmetrical. She denies a single specific mechanism of injury. Past medical history is unremarkable for systemic complaints, previous surgeries, or previous shoulder injuries. Impairments revealed on initial physical therapy examination include supraspinatus and infraspinatus weakness and decreased active shoulder external rotation and abduction. Passive horizontal shoulder adduction reproduces the patient's pain with a muscle guarding end feel. what nerve root is affected?
A 17-year-old right-hand dominant high school female volleyball player presents to an outpatient physical therapy clinic with complaints of diffuse right posterior shoulder pain and weakness. Weakness is most prominent with shoulder external rotation. She reports gradual weakness and pain over the last month and notes that her shoulder blades no longer look symmetrical. She denies a single specific mechanism of injury. Past medical history is unremarkable for systemic complaints, previous surgeries, or previous shoulder injuries. Impairments revealed on initial physical therapy examination include supraspinatus and infraspinatus weakness and decreased active shoulder external rotation and abduction. Passive horizontal shoulder adduction reproduces the patient's pain with a muscle guarding end feel. what nerve root is affected?
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