I watched the video that followed that one, that google served me, and it was also very interesting. It’s a video by Drew Baye. He talks about the mistakes that a lot of people do with exercise, the main ones being training not hard enough, doing too much in one session, and not having enough recovery time. He also questions a lot of assumptions that are commonly held in the training commnity.
Well... I have come to some updated conclusions recently regarding the "best" workout.
I had been doing the BBS workout, but I noticed that in addition to plateauing, it just didn't seem to be doing much good anymore.
Then I began to do the Arkigong / Kung Chu 6 days a week, and interesting things happened.
First, some muscles that had become a bit flabby (literally) turned back into muscle by doing Qigong. That reminded me that in the past, I used to do a full workout with weights once a week, and then almost every day I'd do basic exercises like pushups and sit-ups (until failure).
Second, the other day I went running, and WOW, I felt really strong and stable. I hadn't run since beginning Qigong 6 weeks ago (or whatever).
Then yesterday, I ran out to the gate at a pretty good pace to get a delivery because they had to ring twice. I felt like had I kept running, I could have just crashed through the steel gate, flipped the delivery van out of the way, and just kept going until I got to China. It was a
very strange sensation to feel so stable, strong, and full of energy! I haven't felt that good since I was in high school for crying out loud...
But that means that FOR ME, a certain combination of exercise is good. Some things (like running and BBS) are good to do every week or two. Other things (like Qigong) are good to do more often. That seems to be an optimal combo for me - at least right now.
But that also varies... What's good for me may not work for others. Plus, what's good for me RIGHT NOW may not be good for me later. For example, my body is highly stressed by heat, but it loves the cold. So, am I getting better results now because the "heat stress" adds just enough that the results are better, whereas in the winter when it's colder that won't happen? I dunno. I'll have to keep experimenting.
A minor Qigong stretch-related knee injury also made me realize that injury is always a sign that I did something wrong. Of course, I didn't stop Qigong - I just paid more attention to what my body was telling me, and modified certain exercises. That resulted in feeling better than ever. The Injury Level naturally varies with each person, at each point in time, at different ages, etc.
Or take stressful times: Exercise is great for relieving stress, but not if you overdo it. There's always a balance to be struck, and it very often changes.
So, end of the day, I think people just need to try various things, shake things up from time to time, and see what works for you - and when.