[brendoelfrendo]

It's probably worth mentioning that the Chinese government really likes to promote Tai Chi as a cultural and athletic practice, so there's a lot of effort spent on justifying Tai Chi as uniquely beneficial, especially as compared to Yoga or other foreign practices that might have similar benefits. Looking at the author's affiliations on this paper, I imagine this is what they're doing.

[foobarian]

I happened to be in Shanghai for a work trip once, meaning the day was pretty booked with meetings indoors. The only time to go sightsee was in the early morning, which revealed a hidden side of the city - streets were filled with elderly people doing tai-chi exercises. It was pretty surreal! I could totally see how it would be a ton of fun as a local retiree :-)

[JoshTko]

This. Nearly all of author affiliations listed include "Chinese medicine" as part of affiliated organization's name.