Skeletal Muscle Mass Index (SMMI): Males, Age 40-44

What these numbers mean

A value around 8.95 kg/m² is typical (50th percentile) for males in this age group. Scores above about 9.58 kg/m² fall near the 75th percentile or higher, indicating above-average performance. Scores below about 8.40 kg/m² fall near the 25th percentile; about 75% of the reference population scored higher.

Also see: 45-49 · All ages

Data source: Lee et al. (UK Biobank SMMI) (2020) · n=390.6K About this study

Skeletal Muscle Mass Index (SMMI) Body Composition Males 40-44

Skeletal Muscle Mass Index (SMMI) Percentile Chart (kg/m²)

Poor 7.38 kg/m²
Below average 8.40 kg/m²
Average 8.95 kg/m²
Above average 9.58 kg/m²
Excellent 11.39 kg/m²
Skeletal Muscle Mass Index (SMMI) percentile distribution chart for Males, age 40-44 5th 5th: 7.38 kg/m² (Poor) 7.38 Poor 25th 25th: 8.40 kg/m² (Below average) 8.40 Below average 50th 50th: 8.95 kg/m² (Average) 8.95 Average 75th 75th: 9.58 kg/m² (Above average) 9.58 Above average 95th 95th: 11.39 kg/m² (Excellent) 11.39 Excellent 0 2.4 4.8 7.2 9.6 12 kg/m² Skeletal Muscle Mass Index (SMMI) percentile distribution chart for Males, age 40-44 5th 5th: 7.38 kg/m² (Poor) 7.38 Poor 25th 25th: 8.40 kg/m² (Below average) 8.40 Below average 50th 50th: 8.95 kg/m² (Average) 8.95 Average 75th 75th: 9.58 kg/m² (Above average) 9.58 Above average 95th 95th: 11.39 kg/m² (Excellent) 11.39 Excellent 0 2.4 4.8 7.2 9.6 12 kg/m²

This percentile chart shows how common a value is, not whether it is healthy.

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Other age brackets
45-4950-5455-5960-6465-69 All
Females data Females, 40-44
Age trend

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