Want to sculpt a better backside? This 25 minute treadmill workout will have your glutes working in overdrive.
During the more intense parts of the workout, bend your knees slightly and dig your heels into the treadmill to really squeeze your glutes.
Beginners should start at 4mph or adjust to a slower speed if needed. For advanced runners, shoot for 5mph or higher if you need more of a challenge.
Turn up your music and get to it!