I wanted to put this up for everyone to check out. A post was made on JP Fitness regarding poor form during a biceps curl. I took the liberty of addressing the flaws during my observation and made notes on the actual photo (the lines and comments are all me). The question was raised as to why the lifter depends on excessive shoulder involvement during a curl? You can locate the deviation areas in the photo along with my notes.  Here are additional notes:

Overall, I think this lifter can handle the weight. However, it does exploit his weak core muscles. The shoulders should have minimal involvement during a curl. They should remain somewhat stabilized during elbow flexion, however, you are going to see a small amount of anterior humeral migration because the load off-sets the center of gravity. No problem there, however, I caution if a lifter cannot calm their testosterone levels and stop lifting weights that they cannot handle efficiently, this excessive poor lifting posture will not only further weaken compensated muscles, but it will "re-wire" the nervous system to always use faulty patterns to move weight. [END]

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