Quote Originally Posted by Edwin23q View Post
As in a sharp pain in my lower left and right hand side. It starts at 2 mins from the start of cardio and by 5 minutes I have to stop my cardio.
It's a soft but sharp pain that's gets worst the longer I'm doing cardio.
But as soon as I stop cardio, the pain goes away.
Strange right?

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That's the first time I've heard that one and I don't think it has anything to do with the ab routine. It could be muscle exhaustion/lactic acid build up I guess if you're doing the cardio right after the ab routine. I guess it could be your obliques because depending on what type of cardio you are doing your internal obliques are responsible for twisting your upper body. I dunno... never experience it and I don't ever do cardio.