Appendicular Lean Mass Index (ALMI): Age Trend
ALMI peaks around age 35 to 44 (~9.1 kg/m² for men, ~7.0 kg/m² for women) and declines steadily thereafter, by age 85, median values drop to 7.7 and 6.2 kg/m² respectively.
Data source: Kelly et al. (NHANES DXA) About this study
Appendicular Lean Mass Index (ALMI) Body Composition Trend
appendicular lean mass index ALMI appendicular lean mass ALM limb muscle mass sarcopenia skeletal muscle index NHANES DXA trend aging norms percentiles reference ranges
Appendicular Lean Mass Index (ALMI) by Age (kg/m²)
Appendicular Lean Mass Index (ALMI) Median Values
| Age | Male (kg/m²) | Female (kg/m²) |
|---|---|---|
| 22 | 8.87 | 6.81 |
| 27 | 8.94 | 6.86 |
| 32 | 9.02 | 6.9 |
| 37 | 9.09 | 6.93 |
| 42 | 9.12 | 6.95 |
| 47 | 9.11 | 6.93 |
| 52 | 9.05 | 6.9 |
| 57 | 8.95 | 6.84 |
| 62 | 8.81 | 6.76 |
| 67 | 8.64 | 6.67 |
| 72 | 8.44 | 6.57 |
| 77 | 8.21 | 6.45 |
| 82 | 7.97 | 6.33 |
| 87 | 7.72 | 6.2 |