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Table 2 Impedance parameter of the lower extremity

From: Effectiveness of impedance parameters for muscle quality evaluation in healthy men

 

Mean±SD

\({R}_{c}\)(Ω)

226.9±23.5

\({X}_{c}\)(Ω)

28.7±3.9

\({Z}_{0}\)(Ω)

274.4±28.4

\({ Z}_{\infty }\)(Ω)

181.6±18.4

\({ f}_{c}\) (kHz)

38.1±8.1

\({ R}_{i}/{R}_{e}\)

1.98±0.23

\(\upbeta\)

0.71±0.03

PAcole (deg)

7.17±0.52

PA50 (deg)

6.88±0.65

  1. SD standard deviation, \({R}_{c}\) resistance of \(f={f}_{c},\) \({X}_{c}\) reactance of \(f={f}_{c},\) \({Z}_{0} \mathrm\,{resistance\,of }\,f=0,\) \({Z}_{\infty } \mathrm\,{resistance\,of }\,f=\infty\), \({f}_{c}\) central relaxation frequency, \({R}_{i}\)/\({R}_{e}\) ratio of intracellular fluid resistance to extracellular fluid resistance, \(\beta\) beta parameter, PAcole phase angle of Cole–Cole model, PA50 phase angle of 50 kHz