Why are swimmers' shoulders so broad?

The muscles on the sides of the back/chest are called the latissimus dorsi and provide the “V” shape to the upper body. Swimmers activate/exercise this muscle constantly when swimming which over a period of time develops leading to a pronounced “V” shape and broad shoulders. read more

Even jackets that have the functionality of keeping you warm can’t properly accommodate your swimmer shoulders. And don’t even get female swimmers started on dresses that zip up in the back. It’s not happening! However, swimmers rock t-shirts and tank tops like nobody’s business thanks to their amazing biceps. 6) You have super dry skin. read more

Some women naturally have broad shoulders and others are naturally narrow -- those with narrow shoulders create less resistance to forward motion in the water and may be faster swimmers as a result, but swimming will not give them broader shoulders any more than being sedentary will narrow the shoulders of the other group. read more