[arciini]

> In Pan & Schleifer (1996), subjects experienced more arm discomfort/pain/fatigue the more keys they pressed while doing a data entry task.[23] Finally, Feng et al. is a recent (2021) cross-sectional study that found that “prolonged computer use time and working without breaks were associated with presence of wrist/hand symptoms”.[24] But of course correlation is not causation, and there are many potential confounders here, e.g. maybe people who spend lots of time at the computer exercise little, and it is the lack of exercise, not computer use, that causes problems.

I generally agree with this. I've found that I have less wrist pain now that (1) I've gotten a better mouse and (2) I work out my wrists and forearm occasionally. I think the keyboard is a much smaller cause, especially since a lot of repetitive stress comes more from gaming and use of mice for me.

[Optimal_Persona]

I am a 100% laptop keyboard/trackpad user for both work & play for 10 years now and I haven't had any RSI since I stopped using a mouse (and paid close attention to overall posture, including having wrists straight but relaxed in both X and Y axis).

To your first citation, purely anecdotal but - over the years when I click on articles by programmers with serious RSI - the ones who identify their text editor are more often die-hard Emacs users (like Stallman). I don't think continual chording is a biologically respectful use of our analog digits. :-)