Plank Jacks with Mini Band
step by step guide:
Place a band around your ankles and get into a plank position.
Jump your feet out to shoulder width then jump them back in to hip width
Repeat for prescribed amount of reps or time.
common mistakes:
Sticking your butt up in the air. Keep your hips in line with your ankles and shoulders so that the tension is on the abs, not on the shoulders.