I read somewhere that a sudden failure during exercise causes more microtears in the exercising muscles than the usual gradual slowing down, which would lead to a greater likelihood of DOMS. That seems to be just speculation, though.robertscott wrote:my flexibility in these ares is about the worst on the planet I'd say. My hamstrings are tight due to APT, and my chest is tighter than a drum through too much benching.
As for failing suddenly in a set, I don't have that problem. It's usually a case of the reps gradually slowing down with maybe 1 'grinding' rep. What would it mean if I did?
The theory that exercise-induced microtears in muscles form adhesions to each other as they heal has more evidence behind it. The adhesions shorten the range of motion and make the muscle tighter when they heal. Exercise cause the adhesions to break and heal together again in a vicious cycle. And DOMS is present all through the process.
Range of motion limitation is probably an adaptation the body makes to repetitive motion activities like distance running, which makes it more efficient. Extreme flexibility isn't good for a marathon runner. But really tight muscles can mess up your posture