[Pahr3yah]

you can install a treadmill under a standing desk and walk while you work.

[mfatica]

I've tried this and for usual tasks it's fine but for tasks that require deep concentration it was inhibiting cognition

[meko]

That was exactly my experience too. Programming + standing was neigh impossible.

[astura]

It's incredibly distracting, I couldn't imagine trying to work on a treadmill, I can't even manage to play turn based RPGs on the treadmill on the lowest setting. The only treadmill activities that have worked for me are TV and podcasts.