I've had a shoulder operation a little while back, and now I'm barely allowed to use my arm the coming 6 months. This is standard procedure for this type of surgery, as it needs time to heal.
I'm a triathlete doing sprint distances and Ironman 70.3, on an amateur level. I won't do any triathlons until next spring / summer, but I need to keep in shape.
My biggest problem is I can't swim. As that is my weakest discipline, that is a problem. I don't expect to do any technique training the coming 6 months, but is there anything I can do to keep my upper body strength and core muscles in tact, without using my arm(s)? I would prefer if it doesn't require a gym membership, but if that's what it takes I'll get one.
For now I can't run as the movements are not good for my shoulder. I guess I can start doing easy runs in a month or two, so that shouldn't be too much of a problem.
I can bike, as long as it's indoors on a spinning bike and I keep my body as if I'm on a chair.