Rectus femoris pennation angle

1 paper1 finding

Humans1

Upstream

1

Critical illness

downin humans1−18%

1 study

Critical illness decreases rectus femoris pennation angle in humans (-18.2%).
Humans7 days of ICU stayrectus femoris7 daysn = 50
Ultrasonographic evaluation of quadriceps femoris muscle mass in critically ill patients aged 60 years and older: a prospective observational study
Frontiers in aging24 Sep 2026

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Ultrasonographic evaluation of quadriceps femoris muscle mass in critically ill patients aged 60 years and older: a prospective observational study

Cohort study of 50 peopleMuscle