How to Identify Your Body Type (The Wrist Test Explained)
The image you shared illustrates one of the most popular and simple methods for estimating body type: the wrist circumference test.
How to Do the Wrist Test
Wrap your thumb and middle finger of one hand around the wrist of your opposite hand.
Observe how your fingers meet.
Wrist Test Results
A. Fingers Overlap → Ectomorph
If your fingers overlap easily, you likely have a small bone structure.
C. Fingers Do Not Touch → Endomorph
If your fingers cannot touch, you likely have a larger bone structure.
⚠️ Important Note:
This test reflects bone structure, not body fat or fitness level. A lean person can still be an endomorph, and an overweight person can still be a mesomorph.
Ectomorph Body Type: The Naturally Lean Frame
Key Characteristics
Slim, narrow shoulders and hips
Small joints and bone structure
Long limbs
Flat chest
Low body fat
Difficulty gaining weight or muscle
Ectomorphs are often described as “hard gainers.”
Metabolism & Genetics
Ectomorphs typically have a fast metabolism, meaning they burn calories quickly—even at rest. This makes weight gain challenging, but fat gain less likely.
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