Table 2.
Correlations Between Fat Fractions (%) and Clinical Measures at Baseline
| Fat fractions (%) | MFM total | MFM D1 | MRC sum score | MRC knee extension | MRC knee flexion | Dynamometry knee extension | 10-Step stair test |
| Mean fat fraction, total legs |
r = −0.722 (−0.847 to −0.519) p < 0.001 (n = 39) |
r = −0.719 (−0.846 to −0.515) p < 0.001 (n = 39) |
r = −0.519 (−0.722 to −0.234) p = 0.001 (n = 39) |
NA | NA | NA |
r = 0.509 (0.196 to 0.728) p = 0.002 (n = 34) |
| Mean fat fraction, quadriceps | NA | NA | NA |
r = −0.644 (−0.796 to −0.415) p < 0.001 (n = 42) |
NA |
r = −0.312 (−0.572 to −0.005) p = 0.047 (n = 41) |
NA |
| Mean fat fraction, hamstrings | NA | NA | NA | NA |
r = −0.659 (−0.810 to −0.426) p < 0.001 (n = 39) |
NA | NA |
| Fat fractions (%) | MITP | Maximum bite force | Maximum chewing time | Maximum swallowing speed | Maximum swallowing volume |
| Mean fat fraction, tongue |
r = −0.769 (−0.874 to −0.596) p < 0.001 (n = 40) |
NA | NA |
r = −0.503 (−0.709 to −0.218) p = 0.001 (n = 40) |
r = −0.364 (−0.613 to −0.050) p = 0.021 (n = 40) |
| Mean fat fraction, masseter | NA |
r = −0.176 (−0.470 to 0.152) p = 0.276 (n = 40) |
r = 0.005 (−0.338 to 0.347) p = 0.976 (n = 35) |
NA | NA |
| Mean fat fraction, pterygoid medialis | NA |
r = −0.456 (−0.677 to −0.159) p = 0.003 (n = 40) |
r = 0.158 (−0.195 to 0.475) p = 0.364 (n = 35) |
NA | NA |
Abbreviations: MFM = motor function measure; MITP = maximum isometric tongue pressure; MRC = medical research council; NA = not applicable.
Mean fat fraction refers to the mean of the left and right side of the muscle. Mean of total legs = mean of muscles of upper and lower legs. Quadriceps = mean of Rectus Femoris, Vastus Intermedius, Vastus Lateralis, and Vastus Medialis. Hamstrings = mean of Biceps Femoris long head, Biceps Femoris short head, Semimembranosus, and Semitendinosus. 95% CI and number of patients are displayed in parentheses.