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Table 2 Partial correlation coefficients (rp) of variables of segmental bioelectrical impedance spectroscopy with neuromuscular properties (n = 59)

From: Association of age-related decrease in intracellular-to-total water ratio with that in explosive strength of the plantar flexors: a cross-sectional study

  S-BIS variables
ICW ICW/TW
rp P rp P
Explosive muscle strength
 RTD0–50 0.336 0.010 0.377 0.004
 RTD50–100 0.364 0.005 0.397 0.002
 RTD100–200 0.419 0.001 0.408 0.001
 nRTD0–50 0.169 0.204 0.311 0.017
 nRTD50–100 0.225 0.090 0.354 0.006
 nRTD100–200 0.247 0.062 0.304 0.020
Maximal muscle strength
 PTMVC 0.460 < 0.001 0.378 0.003
Twitch contractile properties
 PTtwitch 0.646 < 0.001 0.504 < 0.001
 RTDtwitch 0.654 < 0.001 0.567 < 0.001
 TPTtwitch −0.276 0.036 −0.392 0.002
Neuromuscular activities
 VA 0.196 0.141 0.111 0.407
 nRMS-MVC −0.033 0.803 0.031 0.818
 nRMS-RTD0–50 −0.015 0.914 −0.005 0.973
 nRMS-RTD50–100 −0.027 0.840 0.029 0.830
 nRMS-RTD100–200 −0.045 0.735 0.023 0.862
  1. ICW intracellular water, MVC maximal voluntary contraction, nRMS normalized root mean square, nRTD normalized rate of torque development, PT peak torque, RTD rate of torque development, TPT time-to-peak torque, VA voluntary activation