Muscle mass is probably the major relevant factor. Women in general have higher body fat percentages at the same weight, hence lower metabolic requirements. I

Muscle mass is probably the major relevant factor. Women in general have higher body fat percentages at the same weight, hence lower metabolic requirements. I'd bet that a 1.6m female strength athlete would have a far higher metabolic requirement than e.g. a 1.6m average office worker guy.