Still, the bone density, the muscle mass... It's not only the weight that is the matter
muscle mass feels like a non issue bc anyone can lift weights and get stronger, and if you’re taking it into consideration then you’re opening a giant can of worms when it comes to jiu jitsu competitors and PED’s.
OK, let's set the record straight on something. This is where a comprehensive background in REAL science comes in.
Have you ever wondered why on average a man is stronger than a woman of the same size and muscle mass, even if they both train? There's a reason for it, and it cannot be changed, no matter what one does.
You have to look at a cross section of muscle and have a basic understanding of muscle contractions in order to get the point I'm making here.
The reason that a man is on average stronger than a woman with the same muscle mass is that within the fassicle of a muscle he will have a greater number of smaller muscle fibers. This gives an overall greater surface area to male muscles. Specifically, there are more actin and myosin fibers in male muscles of the same mass as female muscles, and that means more myosin heads, which are the "oars" that cause the muscle contraction. How many more?
Given the same muscle mass, a man will have about 30-40% more actin-myosin filaments than a woman. This is due to the fact that men have a higher proportion of smaller, more powerful muscle fibers. These fibers have more actin and myosin filaments, which are the contractile units of muscle.
Let's look at the numbers for weight lifting.
These are the closest weight categories for powerlifting available for comparison. These women are about 7% heavier than the men, but the men are 47% stronger. Read that again. Men are 50% stronger than women. With the greater number of filaments in addition to the anatomical differences, the major factors are accounted for. No amount of hormones or surgeries will ever change this, as the number is set at birth. Read that again. The number of muscle fibers within a muscle is set at birth. Humans cannot grow new muscle fibers, and cannot lose existing muscle fibers.
Men are stronger than women. We all know that, but now you know why.