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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