Table 3 Correlation between biceps brachii and rectus femoris muscle atrophy and physical functions at ICU discharge

Biceps brachii muscle

 Medical Research Council score

0.47

0.01

 Handgrip strength

0.50

0.01

 ICU Mobility Scale

0.35

0.07

 Functional Status Score for the ICU

0.56

< 0.01

Rectus femoris muscle

 Medical Research Council score

0.46

0.02

 Handgrip strength

0.62

< 0.01

 ICU Mobility Scale

0.32

0.11

 Functional Status Score for the ICU

0.56

< 0.01