Hi,
I agree that the 15 basic exercises are the Chi kung (or Nei kung) of ilc. Correct breathing combined with correct body movement and mind focus (awareness) are the requirements of any qigong. I've found that over time my qigong is becoming more ilc and my ilc is becoming more qigong
On the topic I also have started running 6 kms 3 x a week and I cycle to
most of my classes (not as dedicated as Chris!). I find that this helps with cardio and also determination and besides my dog loves it
regards
Steve