Table 1: Baseline physical characteristics, phase angle, muscle echo intensity, muscle thickness and motor functions in healthy young adults (n = 33).
The stand-up score is represented as median (25,75 percentile). Other values are presented as mean ± SD. a.u.: arbitrary unit.
Total Male Female
(n = 33) (n = 12) (n = 21)
Age (years) 22.2 ± 2.2 23.5 ± 3.1 21.5 ± 0.8
Height (cm) 165.0 ± 7.2 171.7 ± 4.2 161.1 ± 5.7
Weight (kg) 54.9 ± 8.9 62.0 ± 7.8 50.8 ± 6.6
Body mass index (kg/m2) 20.0 ± 2.2 21.0 ± 2.2 19.5 ± 2.1
Phase angle (degrees) 9.0 ± 1.6 10.4 ±1.2 8.2 ± 1.2
Muscle echo intensity (a.u.) 36.9 ± 16.5 25.8 ± 6.3 43.2 ± 17.2
Muscle thickness (a.u.) 487.5 ± 98.8 518.5 ± 99.3 469.7 ± 94.0
Maximum torque during isokinetic knee extension at 60˚/s (Nm/kg) 2.4 ± 0.5 2.8 ± 0.2 2.0 ± 0.3
Usual gait speed (m/s) 1.4 ± 0.1 1.5 ± 0.1 1.4 ± 0.1
Maximum gait speed (m/s) 2.2 ± 0.3 2.5 ± 0.1 1.9 ± 0.1
Five chair stands time (s) 5.2 ± 0.9 5.0 ± 0.9 5.3 ± 0.9
Stand up score (a.u.) 7 (6, 8) 8 (8, 8) 6 (5.5, 7)