I hate cold. This remains true. It has been very rough since I stopped swimming. I’ve already gained 12 pounds, too.
That said, I got one of those, under the desk, pedal exercise thingies, with my Christmas Amazon gift card winnings, and just started using it, although in a ergonomic gamer chair. The result is that I can do a little work on my back, somehow, by pedaling in a crunched-like position, and focusing on my back.
Doing it, I found myself working a muscle group I would often target while kicking in the pool.
Best case scenario, it helps me continue to work muscle up my back and to the shoulders.
Time will tell.
See. I told you this was boring.