如何计算Lean Body Mass
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Lean body mass (LBM) is total body weight minus fat mass. It includes muscle, bone, organs, connective tissue, and water. LBM is used to calculate drug dosages, set protein targets, and assess body composition beyond the limitations of BMI.
分步指南
- 1Boer Formula (most accurate): Men: 0.407W + 0.267H − 19.2; Women: 0.252W + 0.473H − 48.3
- 2James Formula: Men: 1.1W − 128(W/H)²; Women: 1.07W − 148(W/H)²
- 3W = weight in kg, H = height in cm
- 4Fat mass = Total weight − LBM
例题解析
输入
Male, 80 kg, 180 cm
结果
LBM ≈ 63–65 kg, Fat ≈ 15–17 kg
~19% body fat
输入
Female, 60 kg, 165 cm
结果
LBM ≈ 45–47 kg, Fat ≈ 13–15 kg
~23% body fat
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