I realised it affected girls a lot. (ie they develop hips, breasts, and they're legs may get thicker)
But I realized that it can affect guys too. They may get heavier and taller. They're shoulders may broaden.
For example
I saw this guy running at our county meet and noticed his form.
His arms were way too tight and high. (His hands were almost touching his shoulders) his arms may have gotten muscular and his shoulders/chest had broaden a bit. He probably didn't know how to adapt.
His legs probably got thicker so it messed with his stride.