As you may recall, recently I've had left leg issues which eventually ended in a diagnosis of cellulitis, a fluid pocket in my calf muscle (most likely a hematoma), chronic lymphedema and vascular insufficiency, and medial osteoarthritis in the knee. Because of the recurring cellulitis, the orthopedist said that knee replacement, or any surgical treatment for the knee, carried too high a risk of infection which could lead to amputation.
So it looks like I won't be picking up the Couch-to-5K mantle again. In fact, since then I've been driving to work instead of walking in order to avoid aggravating the arthritic knee.
This leaves a hole in my exercise regimen, and I've seen my weight creep up as well.
Thinking about what aerobic exercise equipment are available at the local gyms, I get: treadmills, cycles, elliptical machines, lap pools, and stair climbers. Only one of those doesn't put pressure on the knee joints. So swimming it is.
Searching google for "couch to 5k swimming" I found everyone recommending a Zero to 1 mile swimming workout. So I thought that sounded good.
The first workout is 700 yards, 4x100, 4x50, 4x25, with rests between each 100, 50, and 25 in the set. Yesterday, I did 2.75x25.
It's not good, but it's a start.
I also realized that while I won't drown (as long as I can stand on the pool bottom, or are within 25 yards of shore), I don't really know how to swim properly anymore (if ever). I'm not sure how to fix that without throwing a lot of money at the problem. My gym has multiweek classes for $140 or so that don't fit my immediate schedule, and that's the best option I've found.