Як розрахувати Body Adiposity Index
Що таке Body Adiposity Index?
The Body Adiposity Index (BAI) estimates body fat % from hip circumference and height without needing weight. Proposed 2011 as an alternative to BMI.
Формула
BAI = (Hip circumference (cm) / (Height (m))^1.5) − 18; Estimates % body fat without scale (alternative to BMI)
- Hip
- Hip circumference (Centimeters)
- Height
- Height (Meters)
- BAI
- Body adiposity index (Percentage body fat estimate)
Покрокова інструкція
- 1BAI = Hip (cm) / Height (m)^1.5 − 18
- 2Healthy male: 8–20%; Female: 21–33%
- 3Validated against DXA scan measurements
- 4No weight scale needed — useful in field settings
Розв'язані приклади
Введення
Hip 100cm, height 1.75m
Результат
BAI = 100/1.75^1.5 − 18 = 25.3%
Часті запитання
Why use BAI instead of BMI?
BMI doesn't distinguish fat from muscle. BAI uses hip circumference (fat-specific). Neither perfect: BAI better for lean populations; DEXA scan gold standard.
What's healthy BAI?
Women: 21–32%. Men: 13–25%. Higher = higher visceral fat risk. But BAI underestimates fat in obese populations; use multiple measures.
How do I measure hip circumference?
Around fullest part of hips/buttocks (standing, feet together, relaxed). Slight compression, not tight. Measure 3 times, average. Small error = big impact on BAI.
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