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ASTON (Asymptomatic Threshold in ON) formula estimates body composition from age and fitness level. It's used in athletic populations.

Steg-för-steg-guide

  1. 1Calculate body density from skinfold measurements or bioimpedance
  2. 2Convert to body fat percentage using Siri or Brozek formula
  3. 3ASTON estimates optimal body composition ranges

Lösta exempel

Ingång
Young male athlete, density 1.07
Resultat
Body fat ≈ 9% (lean athletic range)
Using Siri formula

Vanliga misstag att undvika

  • Using athlete standards for non-athletes
  • Over-relying on single assessment method

Vanliga frågor

Is ASTON specific to a sport?

More general tool; sport-specific norms vary significantly.

How accurate is body composition assessment?

DEXA is gold standard; bioimpedance, skinfolds 3-5% error.

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