Like many others I tend to fall into the trap of drawing the same body type over and over for athletic characters. This photoshoot serves as awesome reference reminding us artists that strong bodies come in all kinds of shapes and sizes and muscles show up in different ways. It also helps us keep in mind that not everyone who is fit is also lean.
These sorts of things are important. Artists: this is a good exercise! It’s good for you.
-Yuko (emphasis mine)
And my favorite headline about this: Do You Want a Body Like an Olympic Athlete’s?