I've got my work cut out for me. I tried rowing 1000m for the first time today. I started out too fast so first 500m interval was much faster than my second. I got 3:34. The record here is 3:08.

I barely broke a sweat, but my lungs and the tendons on the elbow sides of my biceps were aching when I finished. My heart rate is still up one hour later. That's a lot of fallout from a < 4min workout.

Needless to say, I pushed myself pretty hard.