Lay on your back with your knees bent and feet flat on the floor. With your hands along your sides, your fingers should just graze the back of your feet. Press your lower back into the ground. Inhale, push your heels into the floor and lift your hips into the air. Hold for 5 seconds, then exhale and lower your hips back down. To increase tension, place a yoga block between your knees and squeeze them together during this movement. Repeat for 60 seconds or as desired.