The man in the picture is mimicking the way someone with a masturbation changed body will look. Please keep in mind that Excessive Sex, Excessive Exercise, Homosexuality, Anorexia, Youth and Old Age, and Analytical Thought, are all associated with most of the bodily changes, this one included, that are caused by Masturbation.
The blog entry is based on a news story about a woman who masturbated so much her arms started hurting and she had to stop.