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The use of abdominal muscles is not only for bodybuilding and weight loss. There are various organs in the abdominal cavity. The abdominal muscles can protect the organs in the cavity, help maintain intra-abdominal pressure and assist in breathing. When the abdominal muscles contract, it can increase the intra-abdominal pressure and squeeze the abdominal organs to complete a variety of physiological functions, such as excretion of urine and urine, coughing, exhalation, and blood return from the abdominal vena cava. Women often exercise their abdominal muscles, which helps to strengthen the productivity during childbirth and is conducive to natural labor.
