Step by step instructions
Stand with feet wider than hip-width apart. Bend right knee into a side lunge, extending left leg and pointing left foot, driving left arm forward and right arm back with elbows bent.
Staying low in squat position, quickly shift weight to left leg, lowering into a left side lunge, bending left knee and pointing right foot. Swing right arm forward and left arm back. Repeat "skating" from side to side as quickly as possible for 45 seconds.