Something I posted recently to the CyberDojo:
"Rusty McMains" (rmcmains@) writes:
> Muscle "tension" or dynamic tension as most people understand it should
> never been applied. This is not healthy and does not promote proper qigong.
I know very little about qi gong, but I've had the good fortune to have been exposed to a few very different styles.
There definitely is a style of qi gong exercise that uses a dynamic tension very similar to what I was taught for sanchin and tensho kata. Exercises like "Pulling Nine Oxen Backward" and "Pushing Eight Horses Forward" were taught to us by a tuina instructor, and had a very similar feel to our sanchin and tensho.