The muscles of the abs can be divided into four groups, thus creating the so-called abdominal region. The transverse muscles are responsible for supporting your internal organs. The oblique muscles can divide into internal and external tissues.
The first ones are located diagonally from your pelvis to the chest; the second ones place above them, they allow your body to bend and turn. But the muscles, which are precisely what we usually call the abs, are placed on top of your transverse muscle. It gives you the ability to keep your back straight and bend forward if you need to. Different exercises do different loads on specific muscle tissues in your body, but, as a result, during your training, the whole straight muscle is being stimulated.
The most visible and significant is the external oblique muscle. It often happens that a lot of training programs do not pay full attention to the exercises for the oblique muscles of the abs for some reason. It can lead you to some severe consequences. For example, if you have non-trained oblique muscles, it can weaken their tone in the lumbar region, and it will result in a specific imbalance of your body proportions and asymmetry of your waist. Do not think that by pumping up oblique muscles you can lose extra fat in your size.
Actually, none of the muscles in your body can get rid of subcutaneous fat. And when you want to reduce extra fat on your waist, there is taking place a reverse and pretty natural process. During the exercises for the oblique muscles of the abs, you form a so-called muscle corset, which placed under a layer of fat on your abs.
Muscles increase in their size after doing the training, thereby bulging out the fat even more outside, which can eventually lead to increasing the size of your waist even more. Therefore, when you start doing these exercises, first of all, you need to get rid of your extra pounds. If you want to look fit and be healthy, then you should not overstrain your muscle corset. It is better to perform regular sessions and make exercises more complicated gradually.
So you need to avoid overtraining and possible injuries for your body. Make sure not to move the hips during your training sessions. Only like that, the constant load on the abdominal muscles will give.