Three Unique Body Types

Somotype theory states that people are born with an inherited body type. This theory was introduced in 1942 and is used by nutritionists, exercise physiologists and doctors to design effective, individualized fi tness plans.

Based on skeletal frame and body composition, there are three categories of body types (called Somotypes): Ectomorph, Mesomorph and Endomorph.

Three Unique Body Types

Ectomorphs

Generally thin and lean, ectomorphs tend to have slender waists, narrow hips and shoulders, small joints and long legs and arms. Younger ectomorphs tend to be slim, without much body fat or noticeable muscle mass. But as they age, they may become what is known as “skinny fat,” where they may still appear somewhat skinny, but are carrying a higher percentage of body fat.

Without a specific training, nutrition and cardio protocol designed specifically for the Ectomorph, they may find themselves losing muscle, gaining body fat, not having much of an appetite and tending to rely on unhealthy snacks in the day and evening.

Mesomorphs

Naturally muscular, mesomorphs typically have moderate-size frames, with wider shoulders and a narrow waist, strong arms and legs, and modest amounts of body fat. Younger Mesomorphs are genetically predisposed to build muscle and maintain a lower body fat percentage. But as they age, they may lose muscle and gain body fat due to lack of protein (to maintain muscle), too low of calorie intake and lack of resistance training. Without a specific training, nutrition and cardio protocol designed specifically for the Mesomorph, they may find themselves unable to maintain their previous stronger and leaner characteristics.

Endomorphs

Because they tend to have medium-to-large bone structure than the other types, women may be described as more full-figured, while Endomorphic men might be considered more stocky with greater body fat that the other two somotypes. Younger Endomorphs may have been able to control their weight with a healthy metabolism and lots of physical activity. But as they age, they may find it more challenging to keep the excess weight off. Without a specific training, nutrition and cardio protocol designed specifically for the Endomorph, they may find themselves rapidly gaining excess body fat and becoming more sedentary.

Take the Body Type Quiz!

It is somewhat rare for a person to be a “pure” Ectomorph, Mesomorph or Endomorph body type, as most people will fall under both a primary and a secondary Somotype.. such as “Ecto/Meso” (for example 70% Ectomorph and 30% Mesomorph), or “Endo/Meso” (like 80% Endomorph and 20% Me somorph) or some other combination of characteristics.

But for our purposes here, we wonʼt be getting that detailed, as we will be concerned only with your primary Somotype. If youʼre not sure which answer to select based on your current body condition, think back to how you were when you were younger.. that can help you select the most accurate response