With the band above your knees, lower into a squat sitting back as far as you can, chest facing the floor, and touch one set of fingertips to the ground.
Jump up, bringing your legs together.
Land as softly as you can in the low squat position, bending the knees to absorb the impact and reach the opposite fingertips to the ground.
Continue to hop up and down as high as you can, alternating the fingertips to the ground to work the obliques as well.
After 20 to 30 reps, hold your squat position for an extra 8 seconds, pulsing up and down an inch for another 8 seconds.