I've been a runner of some sort most of my life. Raced other kids around the block when I was 6. Sprints back and forth across the field in middle school. Four years of cross-country and track in high school. Two state championships. Joined the Army as an adult. Hit a snag with spine injuries in my mid to late 30s, but back on the wagon and running 50+ miles per week in my mid 40s.

At every point in my life, including right now, I would agree 100% that a treadmill and stationary bike suck and I would not do those.