Sensei Ernie Molyneux and Roy Flatt - Goju Ryu Karate Pad Work
When you first start training in the martial arts one of the surprising things you learn is just how much conditioning you have to do before you can land a punch effectively. Pad work is one of several techniques that will help you improve.
Here is a demonstration of two 7th IOGKF Dans working through one of their regular pad work exercises. It shows you what you should be aspring to.