What body type is characterized by a long, slender build?

The body type characterized by a long, slender build is known as the ectomorph. Individuals with this body type typically have a narrow frame, long limbs, and a lower percentage of body fat. They often find it challenging to gain weight or muscle mass due to their fast metabolism and high levels of activity.

Ectomorphs usually have smaller shoulders and hips, contributing to their streamlined appearance. This body type may excel in endurance sports due to their lean physique but might need to implement specific nutritional strategies and resistance training to increase muscle mass if desired.

In the context of the other options, endomorphs are usually characterized by a rounder body with higher levels of body fat, mesomorphs display a more muscular and athletic build, and somatotype refers to the classification system that includes all three body types rather than being a body type itself. This understanding helps recognize the unique traits of the ectomorph body type and its implications for fitness and nutrition.