Skip to main content
. 2020 Aug 18;11:1028. doi: 10.3389/fphys.2020.01028

TABLE 2.

Reliability and variability of performance tests.

ICC 95% CI CV
5 m 0.975 0.950–0.987 4.7
10 m 0.957 0.915–0.979 2.6
20 m 0.953 0.906–0.976 1.4
30 m 0.982 0.963–0.991 9.0
Illinois-MT 0.909 0.812–0.954 2.1
SJ 0.910 0.819–0.955 8.2
CMJ 0.978 0.956–0.989 7.5
CMJA 0.929 0.857–0.964 7.3
5JT 0.971 0.942–0.986 8.0
Handgrip right 0.896 0.791–0.948 7.3
Handgrip left 0.869 0.738–0.935 8.2
Back extensor 0.867 0.735–0.934 10.1
Medicine ball throw 0.978 0.955–0.989 18.1
Stork right 0.853 0.705–0.926 46.5
Stork left 0.637 0.274–0.819 58.4
Y balance test (RL/L) 0.977 0.54–0.988 11.0
Y balance test (RL/B) 0.894 0.788–0.947 9.8
Y balance test (RL/R) 0.942 0.883–0.971 19
Y balance test (LL/R) 0.982 0.963–0.991 9.0
Y balance test (LL/B) 0.942 0.883–0.971 8.5
Y balance test (LL/L) 0.973 0.946–0.987 21.8

CI, confidence intervals; CV, coefficient of variation; CMJ, counter-movement jump; CMJA, counter-movement jump; ICC, intraclass correlation coefficient; Illinois-MT, Illinois modified test; SJ, squat jump; B, background; L, left; R, right; LL, left leg; RL, right leg.