Jump Rope Workout

A new study published in Research Quarterly found that just 10 minutes of this fun workout is more effective than doing 30 minutes of cardio. Don't you want a workout that is 3x's more effective than boring cardio? However, here's the BEST part...It doesn't require fancy equipment and another study found that you'll burn a whopping 285 calories in only 15 minutes. What's the workout?