WRONG! Muscles get sore when you push them to limits that they aren't normally pushed to, like most athletes do. It doesn't matter what shape you are in – you can still get sore muscles. I know I do.
DOMS or Delayed Onset Muscle Soreness is the soreness that occurs 24 to 48 hours after an exercise session and decreases after 72 hours. The current theory is that DOMS is caused by microscopic tears to the muscle fibers that occur during eccentric exercise – which means the muscle is lengthening or elongating whole producing force.
When you are lowering the weights you are performing an eccentric muscle action.
When starting a new exercise or using muscles that you have not used in a while you will most likely get DOMS. Tread lightly when starting a new exercise and you may get out pain free. But if the soreness does hit you like a ton of bricks here are some tips to help you get back to the gym faster.
Come to think of it my chest is a little sore from that crazy CHEST CRUSHER