Every time I do full pushups, I pull a stomach muscle.
I teach taekwondo for a living, and being able to do a pushup is important to me, since it is a basic part of our warmups. I've never been especially fond of them, but since around 2006, full pushups almost always end up with me in pain. The first time it happened at a training camp in 2006, I took it easy, just assumed I…
