I'm gonna need a cite for that 90% figure. Here's a study that compared bicep muscles and the largest quadricep muscle. https://pubmed.ncbi.nlm.nih.gov/8477683/
Women were only 52% as strong as the men in the bicep and were 66% as strong in the quad. Women are _closer_ to men in the lower body, but men are still way stronger in both upper and lower on average.
Women were only 52% as strong as the men in the bicep and were 66% as strong in the quad. Women are _closer_ to men in the lower body, but men are still way stronger in both upper and lower on average.