Tackleholic

I'm in my 80's now and it's sad to admit the old stud horse ain't what he used to be. I trained 6-7 times a week and competed in regional body building competitions until my late 60's. I hated cardio then, and still do; it's boring. What I did, and still do, is high repetition leg presses non stop for 15 to 20 minutes, walking lunges with dumbells, box jumps, and unweighted deep squats; any of those when done in volume with light weights will always leave me huffin' and puffin' like an old freight train. This routine may not be for everyone, but keeps my weight and blood pressure down and I'm not on any meds. This year I've reduced my gym sessions with weights to 3-4 times weekly, but my Border Colly still demands her daily walks, swimming, and fetch sessions which last for 1-2 hours; keeps me off the couch.

Thankyou everyone for the many responses;  I have placed an order for 4 of the suggestions y'all gave me.

Several sensible answers to this post;  thank y'alls, I will try them all.