Off day from lifting. Did HIIT for 20 minutes. Had planned on longer but I broke the treadmill.
I do intervals at a 2:1 ratio and speed increases as I get further into the workout. Treadmill tapped out at 12.5mph@+/-55 seconds. Punk-ass. Almost fell on my face when it quit mid-stride.
Anyway, good workout either way, even if the treadmill couldn't keep up.
1 scoop micro