This thread has not gotten the necessary publicity it deserves. The benefits of stairs climbing is enormous as it can repay for almost all roadworks within a short distance on stairs up and down. I suggest the Op and every other active person here do the little they can. If I'm to recommend, I would recommend stair climbing and pushups simultaneously.
3 days report;
200k,Tonimez,16,2760,2025-07-16
I added a link to here at the bottom of the pushup report. 👍 Simultaneous pushups and stairs sounds exciting.
Much easier on the way up than down. Might try a few flights tomorrow.

my report: 200k,DirtyKeyboard,201,20100,2025-07-17