I don’t have any boxing specific experience, but I joined a Brazilian Jiu Jitsu gym this summer for a more social, total body experience than I typically get on the bike, and it’s been exactly what I’d hoped for. Combat sports in general benefit from the solid cardio base you get from cycling, and cycling, at least in my case, has really benefited from a stronger core. I find it hard to really push myself alone on the bike. In a sparring session with a guy who is trying to choke you, the push comes naturally. I did the Triple Bypass this year while also training jiu jitsu and I bounced back a lot faster after TBP than I did last year.
It’s not without its drawbacks: I’m sore a lot, and niggling injuries definitely happen. But BJJ relies on physical contact in a way that boxing workouts might not, so your mileage may vary. I do find that cycling is a great way to work out the aches that come from time on the mat.
The one thing I noticed in looking for a gym is that a lot of gyms, at least in my area, are MMA focused in a way that can be off putting or just make your schedule harder to manage. They’ll have boxing, kickboxing, BJJ (gi and no gi) and maybe a few other offerings all competing for time, instead of the sport you really want to focus on, so finding the right spot can be harder.
In general, though, I’ve loved jiu jitsu. There’s something to be said for starting a fighting sport in middle age (I’m 42) with no ego and nothing to lose. If you’re interested in boxing, I’d say go for it. A good teacher will meet you where you are, and you’ll definitely be fitter having done it.
Brady, grappling and cycling, in SLC