Slim down for summer with the Full Body Fitness Challenge. Work you upper body, lower body and everything in between for 30 days by alternating pushups, squats and crunches.
Calorie Blasting Pyramid HIIT Cardio Treadmill Workout jog: sprint (x)
Burns 300 Calories - this only burned 90 calories for me in about 12 minutes and my heart rate was up the whole time. good, quick workout but not close to 300 calories. Time to do it again!