Alternate 2 moves for 30, 45, and 60 seconds a piece! Your intervals will increase in time as you work up the pyramid, and decrease in time as you head back down. This quick burner will build a sweat quickly. Bring dumbbells and a sweat towel - this one gets the job done!

Equipment: Strong Dumbb...

Have 13 minutes to spare? Meet me on the mat and let's work through the core in this bodyweight burner! This class is perfect for after a run or cycle ride, or to tack onto any Kristina Earnest on Demand workout. These 6 exercises are a progressive take on my go-to movements for an efficient, abd...