I used to ride my bicycle with a couple of guys and I think I was at red line the entire time. I really hated it. It felt awful while I did it. I felt totally wasted after. I started to dread the emails announcing the next ride. I finally quit. That was way before I heard of chronic cardio, but once I heard that term I knew exactly what it was, and it was what I had been doing on those damn bike rides. Now when I ride I breathe through my nose the entire way. I barely break a sweat. I totally love it.
Female, 5'3", 49, Starting weight: 163lbs. Current weight: 135 (more or less).
Starting squat: 45lbs. Current squat: 160 x 2