The thousand dollar question. Part of the reason I like slow, methodical movement is that your brain can receive the signals that you call pain which are indeed valid. The trick is to first interpret if the feeling is pain or discomfort. The second trick is to translate if the sensation is caused by of inappropriate movement or because you are entering the productive zone. Truly if you feel sharp or dibiltating sensations by all means stop. If you have just become aware of the 'tender' area and you can create a deliberate movement without loosing form or grimmicing then you are transmitting information to the area that you have a higher expectation of performance. This is a tricky area. Basically, if the discomfort makes you grimmice or loose form you are done.
I don't believe in pain but discomfort is the impetus for growth.
Great question. You already read that email. And did the clarification, adnaseum, help?
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