SAFD
I do a lot of cross training. My last long race was the Tink half in 2017, and at that point I had burned myself out on distance running and badly needed a break. I start doing Orangetheory Fitness 3-4 times per week (60 min workout that is half treadmill/half strength training, sometimes with rowing), loved it immediately and stuck with that up until the pandemic started. Up to that point, I had struggled with back problems for years and I think that consistently doing strength training for the first time ever - especially core stuff - really solved about 99% of that (so sorry to say
@Baloo in MI but I agree with your doctor!). I'm kind of afraid to give up strength workouts at this point because I feel like my back issues will come back if I do, so that keeps me committed. Hooray for fear-based motivation I guess?
But I have really grown to like strength training a lot and I think it's really important for injury prevention.
Anyway - my OTF studio temporarily shut down when the pandemic started, so I tried the Peloton app for at-home workouts in March 2020. They have workouts similar to OTF (they call them "bootcamps"), as well as strength and yoga workouts in addition to their cycling and running stuff. We eventually upgraded to their bike about a year later after using a Schwinn spin bike for awhile, and I have been bouncing around the Peloton workouts ever since.
So my issue is the opposite of what a lot of people are saying here - I DON'T want to just run, I want to do everything (except rowing, I never EVER got good at that). Running, spinning, yoga, strength training and stretching - even dabbling in some 10-minute barre classes here and there, which I think are helping my hips a lot during running. I think it helps both physically (injury prevention, bone strengthening, etc.) and mentally (hopefully avoiding that burnout I felt a few years ago). But I also have a family and a job, sooo...how to fit it all in?
TL;DR: yes I do cross training