Abdominal muscle spacing is a similar phenomenon to diastasis, but with the difference that it is mainly a functional problem, but the structure of the muscle fibers does not change so significantly. In some cases, the separation of the abdominal muscles can be just a pre-stage of diastasis. Spacing means if the abdominal muscles are 0.6 to 1.9 cm apart. With diastasis, there is a separation of the abdominal muscles in their central ligament line - linea alba. There is a significant disruption of the muscle structure, a weakening of the center of the body (core) and problems with mobility. Diastasis means the separation of the abdominal muscles by more than 2 cm. In worse stages, the distance can be up to 10 cm.