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In this segment of the YouTube video, the speaker explains that exercises that involve twisting the torso primarily work the oblique muscles. He shares his personal experience of over‑developing his obliques, which created a bulky side‑profile that looks like a “pneuzinho” (small tire) and can be mistaken for fat even at low body‑fat percentages. He argues that an over‑emphasis on oblique work leads to an unaesthetic abdomen and can cause long‑term spinal issues due to repetitive rotation. Instead, he recommends focusing on properly performed rectus abdominis (reto abdominal) exercises to build a clean, aesthetic core without the drawbacks of excessive oblique development.
