The association with pain and improved performance evolved from research in many laboratories showing that when muscles are stretched, they activate specific metabolic pathways responsible for building new and stronger muscle protein. In fact, after intense exercise, muscle remodeling, which ultimately leads to improved performance, takes place. Athletes have interpreted this research as "more is better". The more pain, the greater the improvement in performance through an increase in the size and strength of muscle cells.
Posted by Dr. Robert Portman on 10/30/2020 to Performance Tip Of The Week