Pumping iron isn’t the only way to help you develop bulging biceps and tank-top-worthy triceps ... proper form because it can lead to shoulder pain, impingement, and other issues if done ...

1 Department of Medical and Health Sciences, Division of Physiotherapy, Linköping University, SE-581 83, Linköping, Sweden 2 Department of Orthopaedics, University Hospital, SE-581 85, Linköping STUDY ...