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abdominal muscles

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Four pairs of muscles (the rectus abdominis, external oblique, internal oblique, and the transversus abdominis), often referred to as the stomach muscles, which support and protect the contents of the abdomen and contribute to forceful exhalation. Strong and healthy abdominal muscles support the back during lifting by stabilizing the vertebral column. If the muscles are weakened by lack of exercise they become pendulous, forming a ‘pot-belly’.

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