The term Ectomorph falls into the category of Somatotype which is a taxonomy developed in the 1940s, by American psychologist William Herbert Sheldon. The goal was to categorize the human physique according to the relative contribution of three fundamental elements, somatotypes, named after the three germ layers of embryonic development: the endoderm, (develops into the digestive tract), the mesoderm, (becomes muscle, heart and blood vessels), and the ectoderm (forms the skin and nervous system). His initial visual methodology has been discounted as subjective, but later formulaic variations of the methodology, developed by his original research assistant Barbara Heath, and later Lindsay Carter and Rob Rempel are still in academic use.
An ectomorph is a typical skinny gal or guy. Ecto’s have a light build with small joints and lean muscle. Usually ectomorph’s have long thin limbs with stringy muscles. Shoulders tend to be thin with little width.
- Narrow hips and clavicles
- Small joints (wrist/ankles)
- Thin build
- Stringy muscle bellies
- Long limbs
Some say Ectomorphs are at a disadvantage because of their thin and fragile bodies. Realistically, Ectos just struggle to add size to their frame. Although Mother Nature chose to work against your abs and bulging biceps, an ectomorph can achieve their dream physique with some hard work and dedication.