Killer Kardio

This has been floating around Pinterest this week and I decided to give it a try. Instead of running, I hopped on my elliptical for the 10 minutes running segments. It was a pretty good workout. I did 20 pushups and 20 tricep dips instead of 10. Burpees and Mountain Climbers always make me so winded.....but who would have thought doing high knees for a minute was so freaking hard? Is it just me? I thought that would be easy...that was the only thing I had to stop several times during the minute. Christy high knees FAIL. Don't tell my trainer!