I did some good weighed crunches on the stupid looking machine at the gym. It sure looks stupid but gives me a real good lower ab pump.
Right after 3rd set the left side of my abs just turned to a rock and I couldn't stretch at all. It straight up felt like a Charlie Horse. I waited about 2 minutes and it went away, then I did another set.
WTF was this? I never felt anything like it. Word. . .