- Begin in a plank position with your feet touching.
- Pull your abs in and jump your feet to the right, bringing your knees toward your right elbow. Your torso will twist to the right.
- Jump your feet back to plank to complete one rep.
- Repeat on the other side and continue alternating sides for 20 reps total.
This exercise works the abs, especially the obliques, while raising your heart rate too.