In this video, Tim demonstrates a way to improve your pull-ups and possibly relieve elbow tendonits issues while you do it!
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https://osi-online.com/learn-more-from-tim/
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https://www.amazon.com/Discovering-You-Tim-Anderson-ebook/dp/B089LT1KPH/ref=tmm_kin_swatch_0?_encoding=UTF8&qid=&sr=