You know that song by Duncan Sheik... it's stuck in my head today. "I am barely breathing and I can't find the air...". No connection to today's workout :)
60 minutes of pure kickboxing. One of the older visitors of my gym...who's super fit... came up to me today when I took a breather from the '3 punch - kick - shuffle - kick - jump' routine. He said..."That looks painful". It was. Showing the first signs of muscle fatigue today but totally "get over"-able.