This question is for experienced martial Qi Gong practitioners:
45 years ago, when I was studying engineering at Ohio State, I found a book in the library stacks that was obviously about Qi Gong. I couldn't read the Chinese text, but had dozens of line drawings showing an adept hanging from a tree branch holding on with two hands.
What I should have done at the time was check the book out and take it to a Chinese master who lived in the area (although he didn't speak English). But I didn't, and I regret it.
Has anyone seen anything about this type of Qi Gong in their years of practice. I am sure that the principles are similar to other Qi Gong practices (proper alignment, relaxation, breathing, circulation, and so forth). But it was over 200 pages packed with text so I tend to think there was some detailed instructions that I am missing.
Thank you in advance
William