Lean Mass Index (LMI): Age Trend
Median LMI peaks at 45-49 (19.41 kg/m² men, 15.89 women), up from 18.40 and 15.12 at 20-24, and drops by 85+. All US adults, NHANES 1999-2004 Hologic DXA.
Lean Mass Index (LMI) Body Composition Trend
lean mass index LMI lean body mass LBM lean muscle mass skeletal muscle NHANES DXA body composition trend aging norms normative data normative values reference values percentiles benchmarks reference ranges standards Lean Mass Index (LMI) by Age Chart (kg/m²)
Lean Mass Index (LMI) Median Values
| Age | Male (kg/m²) | Female (kg/m²) |
|---|---|---|
| 20-24 | 18.40 | 15.12 |
| 25-29 | 18.62 | 15.48 |
| 30-34 | 19.00 | 15.45 |
| 35-39 | 19.06 | 15.44 |
| 40-44 | 19.36 | 15.80 |
| 45-49 | 19.41 | 15.89 |
| 50-54 | 19.39 | 15.58 |
| 55-59 | 18.74 | 15.78 |
| 60-64 | 19.27 | 15.57 |
| 65-69 | 18.70 | 15.61 |
| 70-74 | 18.26 | 15.16 |
| 75-79 | 17.90 | 15.04 |
| 80-84 | 17.33 | 14.61 |
| 85+ | 16.81 | 14.52 |