Contraction of the lower abdominal muscles tends to bring the pelvis towards the ribs. Imagine you are lying on your back for the traditional reverse abdominal crunch (one of the best lower abdominal exercises). When your legs and hips are raised off the floor, the action is initiated by the lower abdominal muscles.

How to stimulate change when your abs stop responding. As human beings, we are creatures of habit. We tend to do the same exercises over and over again, in the hope that we will see results at some point. This does not work, because the body becomes accustomed to the same type of stress and becomes ‘energetically efficient'. This means that when you do the same exercise over a period of time, the body becomes so efficient at it that it burns fewer calories while doing it!For example, if you use the treadmill 3 times a week, your body progressively burns less calories each time (as long as the speed, incline and duration remain the same). To get results, you need to adjust one of the 3 factors.

Hence, if you normally exercise for 45 minutes four days a week on a treadmill with the same intensity and time for each workout, over time you will not benefit as much as you did when you began. Your body will become accustomed to the routine, and it can become increasingly difficult for you to meet your fitness goals. The repetitiveness also can be boring - even with music, TV or a magazine for distraction, the exercise might become mundane, which also can decrease the likelihood you'll continue working out.

What does this have to do with lower abdominals? Everything! Change is good, and stimulates fat loss, which in turn helps the lower abdominal muscles become more visible and defined. Treat your body as a complete unit rather than over emphasizing the waistline. Don't make the same mistake that everyone does - doing hundreds of repetitions of abdominal exercises in the hope of getting a flat abdominal region.

Plank - Lower Abdominal And Lower Back Muscles. Starting Position: Get on an exercise matt on all fours, with your elbows touching the matt directly underneath your shoulders. Extend your legs back as far as you can, and keep the toes on the floor. Movement: Raise the hips up and hold yourself in this 'plank position' with your back completely flat. This is an excellent exercise for the hips, thighs and abdominal muscles. Lower the hips slowly down to the mat. Repeat 15-20 repetitions. (Most individuals find it hard to complete 15-20 reps for this exercise and 8-10 might be a more suitable starting point).

Lying Scissors - Lower Abdominal Muscles. Starting Position: Lie on your back on an exercise matt with your palms on the mat under your lower back and your legs outstretched. Movement: Exhale as you alternately raise your legs up in the air with a slight bend in them. Inhale as you lower your legs back down to the matt. Repeat for 8-10 repetitions.