7. Partial Crunches
To start this exercise, begin with your knees bent and your feet flat on the floor. Place your hands behind your neck, or alternatively, can cross them over your chest. While tightening our stomach muscles, raise your shoulders off the floor and breathe out as you rise up. Hold the raised position for a breath and slowly and gently lower yourself down. Repeat this exercise 8-12 times. To maintain good form throughout, be sure to keep your feet flat on the floor and make sure your tailbone and lower back remain in contact with the floor at all times.