Now I know everyone will tell me sit ups are bad for me, but I need to get myself capable of doing 1000's if I am to stand any chance in the Army...
After just 10 or so I get really sore in my lower back, not directly in the middle but slightly off to the sides.
It does feel like the soreness is from back is hitting the mat every time, so I am guessing this is more down to form than a weak back?
Any advice welcome
For the record my knees are bent, my hands to the side of my head and I try to pull from abs, my lower back does seem to be the first thing to hit the mat on the way back down though.
Ta!