Somatotype Science
Discover Your Body Type Based on 20th Century Constitutional Psychology
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The Three Masculine Frames
Developed by William Sheldon in the 1940s, somatotype theory categorizes human physique into three primary types. Each has distinct metabolic, structural, and performance characteristics.
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Ectomorph
The Lean Frame
Metabolism
Fast
Muscle Gain
Difficult
Fat Storage
Low
Mesomorph
The Athletic Frame
Metabolism
Efficient
Muscle Gain
Easy
Fat Storage
Moderate
Endomorph
The Solid Frame
Metabolism
Slow
Muscle Gain
Moderate
Fat Storage
High
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