Whenever I try to do situps/crunches, the muscles in the small of my back really start killing me.
Is this normal, or am I not doing the situps correctly? My abs seem like they could go for quite a bit longer, but the pain from the small of my back is so intense that I usually quit.
Also, should I brace my feet under a heavy object, or does doing this just make me use my leg muscles more than my abs?
Is this normal, or am I not doing the situps correctly? My abs seem like they could go for quite a bit longer, but the pain from the small of my back is so intense that I usually quit.
Also, should I brace my feet under a heavy object, or does doing this just make me use my leg muscles more than my abs?