I'm within 3-5 years of FIRE, and due to my job (accountant) and commute I have nagging tightness in my hips, hip flexors, and lower back. I regularly exercise, which consists of "core" work outs with handweights and a fitness ball, running (I train for distance races - 10K and half marathon) and biking. I've done some yoga (probably not enough) and also gone for PT and chiropractic a few times, which helped. I'm no triathlete or athletic superstar, but I pride myself on my disciplined, regular approach to exercise.
There are things I fancy doing with my FIREd life, some of which involve good old fancy hard work outside. I love gardening and am seriously thinking about a second hort-related career. At a bare minimum, I would want to be able to enjoy caring for my own gardens in FIRE.
Yet -- these days I find myself losing the will for the physical side of the work -- digging holes for trees, the physical labor of bending and stooping... stuff I used to be able to do for hours. I'd like to think that once I'm standing more than sitting and can work out the kinks that all is not lost.
What's been the post-FIRE experience of other desk jockeys??