Skip to main content
. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Exp Aging Res. 2019 Apr 24;45(3):282–292. doi: 10.1080/0361073X.2019.1609145

Table 2:

Median and Interquartile Range of lower extremity isometric strength performance during test and retest, p-values from Wilcoxon signed ranks test, and reliability indicated by the intraclass correlation coefficient (ICC) and 95% confidence interval (n=38) for the average of 3 trials and the first trial (N=38).

Isometric Strength (N) Test
Median
(IQR*)
Retest
Median
(IQR)
p-value ICC (95% CI)
(3 trial average)
ICC (95% CI)
(First trial)
Hip Abduction 170 (143–217) 170 (146–219) 0.35 0.99 (0.97–0.99) 0.95 (0.89–0.97)
Knee Extension 195 (166–237) 186 (172–247) 0.39 0.95 (0.90–0.97) 0.91 (0.85–0.96)
Ankle Plantarflexion 194 (150–223) 202 (158–233) 0.09 0.90 (0.81–0.95) 0.89 (0.81–0.94)
*

IQR= interquartile range