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In this Portuguese‑language fitness commentary, the presenter addresses a common belief among natural lifters that aerobic exercise (cardio) will cause muscle catabolism and therefore should be avoided. He explains that this fear is misplaced: regular cardio improves the body's ability to deliver and utilize oxygen, which accelerates the recovery process between resistance‑training sets. Because oxygen‑rich blood reaches the exercised muscle more efficiently, a lifter who incorporates cardio needs less rest time between sets compared to someone who does not do cardio. The speaker frames cardio as a tool that enhances recovery and does not hinder muscle growth, countering the misconception that it leads to excessive catabolism.
