1 Department of Orthopedics, Federal University of São Paulo, São Paulo, Brazil 2 Federal University of São Paulo School of Medicine 3 Federal University of São Paulo 4 Department of Physiology, ...

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Mark S., a 27-year-old male, is complaining of left shoulder weakness. Mark trains with weights regularly (3-4 times each week) and has done this for 10 years. Six months ago, while doing the bench ...