Table 4.
Sources of variance for all measures and all factors. All variance is related to “Subject” with very low variance (error) associated with Subject × Raters indicating excellent reproducibility of measures.
| Source of Variance | |||||||
|---|---|---|---|---|---|---|---|
| Measure | Subject | Rater | Time | Subject × Rater | Rater × Time | Subject × Time | Error |
| Whole Leg | 1.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Bone | 1.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Subcutaneous Fat | 0.999 | 0.000 | 0.000 | 0.001 | 0.000 | 0.000 | 0.000 |
| Total Muscle | 0.999 | 0.000 | 0.000 | 0.001 | 0.000 | 0.000 | 0.000 |
| Anterior Muscle | 0.997 | 0.000 | 0.000 | 0.001 | 0.000 | 0.000 | 0.002 |
| Lateral Muscle | 0.998 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.002 |
| Deep Muscle | 0.994 | 0.000 | 0.000 | 0.004 | 0.000 | 0.001 | 0.002 |
| Soleus Muscle | 0.998 | 0.000 | 0.000 | 0.001 | 0.000 | 0.000 | 0.001 |
| Gastroc Muscle | 0.999 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Total Muscle Vol | 1.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Anterior IMAT | 0.997 | 0.000 | 0.000 | 0.001 | 0.000 | 0.000 | 0.001 |
| Lateral IMAT | 0.989 | 0.000 | 0.000 | 0.003 | 0.001 | 0.000 | 0.007 |
| Deep IMAT | 0.993 | 0.000 | 0.000 | 0.002 | 0.000 | 0.000 | 0.005 |
| Soleus IMAT | 0.967 | 0.006 | 0.000 | 0.017 | 0.003 | 0.000 | 0.007 |
| Gastroc IMAT | 0.993 | 0.000 | 0.000 | 0.002 | 0.000 | 0.000 | 0.004 |
| Total IMAT Vol | 0.997 | 0.000 | 0.000 | 0.003 | 0.000 | 0.000 | 0.000 |
Abbreviations: Vol, volume; IMAT, intramuscular adipose tissue