Which is stronger, 100 kg boys who exercise every day or 150 kg boys who never exercise?
It stands to reason that boys who exercise 100 kg every day are more energetic than boys who never exercise but 150 kg. After all, you exercise every day, and your whole body is full of muscles. But judging a person's strength depends not on whether he exercises or not, but on his different physique. Some people are inherently stronger.