Standard Sit Ups are one of the most commonly utilized core strengthening exercises. When performing standard sit ups, avoid rocking the head as much as possible as this can place unwanted stress on the neck. Instead, keep the head in line with the torso during the sit up phase and feel a strong contraction in the transverse abdominus as you reach the pinnacle of the sit up. If needed, feel free to lace the fingers behind the head for support. Moreover, a good rhythm should be maintained and vigorous/jerky movements should be avoided.