V-Ups

V-Ups is one of the best ab exercises to work to lower abs and is rather difficult. The vast majority of people will have to work up to this exercise. Although you need to perform the lifting phase of this movement quickly, avoid using that momentum to heave your legs and upper body off the ground. Concentrate on using your abs to generate the necessary power. So take your time, and don't attempt this lower abdominal exercise until you are ready.

1. Lie your back on your exercise mat with your arms extended straight out behind you and your legs extended straight out in front of you.
   
   
2. Pulling your abdominals toward your spine, simultaneously quickly lift your torso - not just your neck - and your arms off the mat until your body forms a V. Almost like you are trying to touch your toes (your torso and legs make the V shape).
   
   
3. Hold that position for a few seconds before lowering back to the original starting position.
   
   
4. Repeat the exercise until you have completed the amount of desired repetitions.
   
   

• Vacuum
• Knee-Ups