i bought one of those stair machines, u know the ones that make you're legs feel as if they're walking up stairs...anyway...after using it for about 1minute the muscles around my knee's burn like crazy, and after 1 minute 30 seconds it hurts so much it feels like my legs have locked up, and i cant carry on, i have to sit down before i collapse, has anyone else had this problem? is it me or will it pass?
thanks
thanks