The correct technique for carrying out the vaccum!
Since the vacuum for the press is primarily a breathing exercise, the correct technique of its implementation implies control over the performance of inspiration and exhalation through the nose. The diaphragm with such a breath should move up and down, and not back and forth. In other words, it is necessary to literally try to breathe the belly, and not just the lungs. This technique will help not only strengthen the press, but also teach you the right breathing.
Exercise a vacuum in the abdomen, along with the exercise bar, is the key to strengthening the internal abdominal muscles, giving them a tone and reducing the waist. However, it is extremely important to develop the habit of doing this exercise correctly and doing it daily.