We are getting into the weeds on the question here. The initial question is: When women are integrated into combat arms units, does this increase or decrease the combat readiness of the unit? The United States Government has one and only one purpose, to provide for the security of the United States. If the Government does anything else, that is a secondary purpose to the defense of the nation. Any action that decreases the combat readiness of the military should be withdrawn from consideration.
That being said, if you honestly believe that if you place a fit young women in a unit with athletic young men increases the combat readiness of the unit; then you have never watched an episode of Jersey Shore!