I worked out before I joined this new gym but I never really did much cardio work and on Sunday I went for it big time and got my heart rate up to 180 (according to the machine anyway) so thats whats knackered me up. I always warm up and down but I'd have to say the swim straight afterwards helped ease the pain.
No, Ush I've never actually been beaten up with a big stick but by describing it as such makes the pain I'm in understandable by everyone......IT HURTS! 馃槃 馃槀