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Table 2 Results from reproducibility analysis of measures on handgrip steadiness in old adults for the left side

From: Handgrip force steadiness in young and older adults: a reproducibility study

Measure % of MVC Session 1 Session 2 Difference ICC [95% CI] SEM (SEM, %) LOA (LOA, %) SRD (SRD, %)
CVM 5% 8.64 8.21 0.43 (p = 0.007)a .911 [.785–.960] 0.29 (3.4) 1.89 (22.4) 0.80 (9.5)
CVM 10% 5.03 4.56 0.47 (p = 0.001)b .820 [.526–.924] 0.31 (6.4) 1.43 (29.7) 0.86 (17.9)
CVM 25% 2.95 2.59 0.36 (p = 0.003)b .767 [.439–.898] 0.31 (11.3) 1.25 (46.1) 0.86 (31.8)
CVT 5% 8.79 8.56 0.23 (p = 0.077)b .911 [.817–.957] 0.37 (4.2) 2.41 (27.7) 1.03 (11.8)
CVT 10% 5.10 4.63 0.47 (p = 0.004)b .806 [.559–.912] 0.38 (7.7) 1.69 (34.7) 1.05 (21.6)
CVT 25% 2.89 2.54 0.35 (p = 0.003)a .774 [.446–.901] 0.28 (10.2) 1.15 (42.4) 0.78 (28.5)
Area 5% 1.85 1.59 0.26 (p = 0.063)a .604 [.300–.793] 0.44 (25.5) 1.37 (79.6) 1.22 (70.9)
Area 10% 2.09 1.72 0.37 (p = 0.001)b .512 [.120–.751] 0.38 (20.1) 1.08 (56.5) 1,05 (55.2)
Area 25% 2.88 2.38 0.50 (p = 0.004)b .496 [.145–.730] 0.63 (23.9) 1.74 (66.0) 1.75 (66.3)
  1. Session 1 and Session 2 are the mean values. Difference are the difference in the mean value from session 1 to 2. ICC, SEM, LOA and SRD are intraclass correlation coefficient, standard error of measurement, limits of agreement and smallest real difference, respectively. Absolute reproducibility results are also given in percentages (e.g. SEM%) by dividing it with the grand mean for both sessions. aindicates the use of Wilcoxon signed-rank test. bindicates the use of paired t-test