BOOM! That’s my calorie burn from an hour+ of leg day, and just 20 minutes of cardio. I burned 100 calories with 4 sets of squats. People are often mistaken when it comes to weight training vs. cardio in terms of burning calories. The main difference here is the after burn. When you do cardio, your heart rate increases and decreases with your intensity. For example, when I step off the treadmill my heart rate drops to a resting rate basically, so my calorie burn stops there. However, when I finished training legs today, my heart rate stayed above 100 bpm for at least 30 minutes. That’s a lot of extra calories being burned AFTER the workout is done. If you push yourself hard enough during your weight training workouts, you’ll torch calories both during and after which at the end of the day beats a 20 minute treadmill workout!! So, don’t skip weight training and DEFINITELY don’t skip leg day!!!!