alt Hacker NewsAs a cyclist I feel this. My FIL is a cyclist in his 70s and has lots of issues with his back and shoulders because he just cycles (even to this day doing 1k km per month).
That being said he is significantly healthier than any other 70 year old I know.
I do a lot of strength training now and I feel significantly better.
I did a cycling trip last year with people around that age and they were incredibly strong on the bike but were still relatively frail and had terrible mobility. I would never advise them to stop cycling because they were definitely way way healthier if they weren't doing that but it would really be nice for them to do some lifting for just one or two hours per week