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It's quite hard to figure out what you're actually asking for here, but I'll give it a shot. The heart and lungs will not be able to grow proportionally as much as the muscles can grow for someone who's a dedicated strength athlete. Therefore a lighter man will almost always have more endurance than a heavier man. He's weaker but with less bulk to lug around those muscles that he have will see less strain and be easier to supply with fresh, oxygenated blood.

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15y ago

What else can I help you with?