So, I started playing piano again after a long (~10 year?) break.
I get very fatigued, very fast playing simple stuff. Not pain, just fatigue, as if I were doing a lot of pushups.
The fact that my hands and arms are not what they were as a kid, as well as spending many hours a day on a computer keyboard probably doesn't help - both in a physical sense (it's stressful) and in the sense that I may be "typing" on the piano without realizing it - that is, using "typing" movements that I have internalized over oh-so-many-years.
All in all, I have the suspicion that my technique is... what is a synonym for the f-word, in English?
I am almost certainly using force somewhere, rather than weight, or I'm unnecessarily tense.
I can't understand where, though, so I suspect I'll have to relearn the movements from scratch.
Can you suggest any good basic physical exercises, books, methods to regain a correct, relaxed technique from the basics - besides "get a teacher" and/or a physiotherapist and get it from the horse's mouth?