Muscle control: Stomach vacuum

Rarity: Uncommon

Stomach vacuum is an once-famous abdominal control that used to be performed during bodybuilding contests in the Golden Era of Bodybuilding, being the most famous and sought control of the period. As of 2016, the stomach vacuum pose is making a comeback in the bodybuilding community.

In stomach vacuum, the abdominal muscles are contracting to retreat the abdominal section into the body.