Is there going to be a 75+ thread?
I forget my age when I'm on a bicycle, Me-Mover or throwing weights around, it's just not on my mind when I'm sprinting or getting those last 2 or 3 reps out at the end of 3 or 4 sets. They're all habits I acquired a long time ago, except for the Me-Mover that was just last year. I wanted to extend my cross training which did require some acclimation. I felt it more in my upper legs, buttocks, more of a workout than my road bicycle, gets the heart rate up fast, faster than cycling, it's about 20% harder to propel than a bicycle, can reach speeds over 20 mph, my 79-year-old legs make it a little harder to maintain those speeds. But aerobically it kicks butt especially on rides over 20 miles, furthest I did was 40 miles. Ironically today some friends are doing a 106-mile trek in the Keys on Me-Movers in a 2-day trek. A young English girl did about 1,300 miles trek on one of those things, she's also a runner.
Bad weather up north, windy here in Florida, great for HIIT workouts, sprinting in the winds no matter what you're riding.