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Table 1 Characteristics of skeletal muscle volume (SMV), electrical properties, and muscle thickness index

From: Estimating thigh skeletal muscle volume using multi-frequency segmental-bioelectrical impedance analysis

Variable Mean (± SD) Minimum Maximum
Thigh SMV (cm3) 2540 (± 344) 1968 3076
Quadriceps SMV (cm3) 1838 (± 255) 1376 2215
50 kHz BI index (cm2/Ω) 35.8 (± 4.7) 27.6 44.8
ICW index (cm2/Ω) 13.5 (± 2.4) 9.0 18.7
ECW/ICW index (a.u) 2.2 (± 0.24) 1.7 2.8
Phase angle (degree) 9.3 (± 0.8) 7.6 11.1
Muscle thickness index (cm2) 176 (± 18) 127 200
  1. SD standard deviation, SMV skeletal muscle volume, BI bioelectrical impedance, ICW intracellular water, ECW/ICW extracellular water per intracellular water