Honestly, I've never heard of 'Qi' before, I'll have to look that up.

I see no evidence, I have no interest. I'm willing to change my opinion, should credible evidence be presented. I have learned to be.calm, present in the moment, and focused on what's important to me. Pseudoscience is only important to me for the harm it does to those who succumb to its extraordinary claims.

Don't know. There is something real but I don't know what Qi is. I'm guessing nerve awareness pathway impulse control.

I guess I always think of these as "body awareness" and not so much energetic, although since we are made of energy it isn't as though I have negativity toward the words "energetic practices". Whenever you slow down and watch each movement you become hyperaware and that is a good thing to make you feel in control of your mind and body.
I do want to comment on Reiki: yes a lot of people think of it as woo woo but I think it is more that a lot of people who want to get Reiki have a need to have someone personally concentrate on them within their their personal space as a lot of people out there in this world are lonely and this may be all the personal attention they get, sort of like getting a mani and pedi.

It does work. Qi gong has lots of evident success over thousands of years. The Chi or life force is the same as prana in the yoga tradition which I have practiced for 37 years. The flow of chi is the prime goal in acupuncture which again is thousands of years old . These disciplines are based on scientific observation and what didn't work was rejected.

Belief in energy flow through the body seems like it needs faith for it to work. There are definitely physical/mental benes from the activity and meditation.

I'm a martial arts instructor and studied Tai Chi as a means to rehab a hip injury in my 20s. It worked well for that. I did meditation as well and that was very useful. Overall, I had a good experience.

I have to say that the "energy work" Things are a bunch of fiction. Mostly psychosomatic responses - positive thoughts will do a lot for a person's well being. Tai Chi has slow movements that can be used as low impact physical therapy. Meditation allows a person to become hyper aware of their own thoughts as well as feeling the elements of the body functioning. That is an extremely useful tool. The problem is that this other fiction is inserted into it that can be demonstrably disproved, yet it persists out of tradition.

Reiki is some next level fiction - again, staying positive meny is is own kind of medicine. Don't lie to yourself in order to get it, however. Love being alive and know how lucky you are to have a busted ankle.

I hope that's useful.

As exercise or as supernatural energy field manipulation with no evidence of any energies whatsoever?

Feet about two feet apart, knees lightly flexed, shoulders relaxed, head balanced.

I think it's a good thing to do. Its very light exercise, it keeps the body mobile, and it helps with control. I've done mostly tai chi in the past, they're quite similar.

I think it makes sense and is helpful.

I try to have an open mind, but honestly can't get on board. I have to say the effect is probably psychosomatic. In my case, having tried it in the past I can say absolutely had no personal benefit for me.

The data on such things is sketchy at best. Try it for yourself. Keep a log. see what it does for you.

Some people seem to enjoy it, and maybe it works for them — if so, good for them. But I feel that any benefits from it are likely to come through mindfulness and positive thinking, rather than mysterious energies.

Yup, I'm a stone-cold scientist.