In fact, according to anatomy, abdominal muscles have five parts: transverse abdominal muscles, oblique abdominal muscles, oblique abdominal muscles, rectus abdominis, and quadratus lumborum of the posterior abdominal wall. The usual 8-pack, 6-pack or 4-pack abdominal muscles are all about the shape of rectus abdominis. In fact, in the final analysis, it is a piece, but it looks like 4 pieces, 6 pieces and 8 pieces.

Extended data:

The benefits of abdominal muscles:

1. Exercising abdominal muscles helps to develop a slim physique.

Abdominal muscle exercise can reduce the proportion of body fat, increase muscle content and increase basal metabolic rate, which can fundamentally help us gradually develop a lean body without fat. However, it should be noted that there is still a difference between developing lean physique and specific weight loss. For example, practicing abdominal muscles has little effect on reducing stomach.

Because subcutaneous fat can't be removed by local exercise, such as abdominal muscle exercise, the most important thing to lose abdominal fat is to do whole-body aerobic exercise, and then add local exercise and a good diet to fundamentally solve the accumulation of abdominal fat.

2. Exercising abdominal muscles can relieve stress and make people feel happy.

Doing abdominal exercises can stimulate the secretion of endorphins, relieve mental stress, make people feel happy, improve their mental state, and improve their work and study.

Reference source: Baidu Encyclopedia-Abdominal Muscle