Not many of us have considered why women can’t do pull-ups. Not to sound sexist, it has nothing to do about gender, but rather psychology and physics.
Marines require their men to be able to do at least 2 pull-ups or chin-ups. However, women on the other hand do not need to do any. One 14-year-old boy was able to achieve the highest award on the government’s physical fitness test by doing 10 pull-ups; for girls that number was 2.
But why are males able to do more pull-ups than girls?
Researchers studied 17 girls who were unable to do pull-ups. They put them through physical training three days a week, for three months. They focused on biceps and latissimus dorsi, while lifting weights and aerobics.
The girls upper-body strength went up by 36 percent and they lowered their body fat by 2 percent.The testing day came and only 4 of the 17 could do one pull-up.
Researchers concluded that pull-ups are not about strength, but women have lower levels of testosterone making it much harder to develop muscles the way that men can. Also, women find it much more difficult to lose fat.