Started training again in my 60s, the thing that surprised me most was balance
Got back into working out a few months ago. Nothing fancy, mostly walking, some bodyweight stuff, and a tai chi class twice a week. I'm in my 60s and was nowhere near where I used to be.
What I didn't see coming was how much of this is balance. I went in thinking strength and cardio. Balance was something I figured I had until I didn't. The shower is a good example. Wet floor, eyes closing under the water, reaching for a bottle. You don't think of it as a balance situation until you almost go down in one.
What's got me excited is that balance is trainable. I wasn't sure at first. It felt like something you either have or you've lost, and at my age I figured I was on the losing side. But it's responding to the work the same way strength does. Being able to measure it with my phone has kept me honest about whether the work is doing anything, and given me something to talk about with the people in my life who worry.
That's what's kept me showing up. Walking is fine, bodyweight stuff is fine, but seeing balance go in the right direction at 60-something is the thing I didn't expect.