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Table 1 Concurrent validity of the Gyko inertial sensor system for the assessment of vertical jump height compared to a Kistler force-plate and the Optojump device

From: Concurrent validity of the Gyko inertial sensor system for the assessment of vertical jump height in female sub-elite youth soccer players

  Gyko vs. Kistler force-plate Gyko vs. Optojump
Countermovement Jump
 ANOVA p = 0.002 (d = 1.41) p = 0.041 (d = 0.94)
 ICC; 2.1 (95 % CI) 0.87 (0.77–0.92) 0.86 (0.77–0.91)
 systematic bias [cm] −0.66 0.55
 random bias (95 % CI) [cm] ±3.2 (−3.9–2.6) ±3.3 (−2.8–3.9)
 SEM [cm] 0.59 0.64
Squat jump
 ANOVA p = 0.001 (d = 1.69) p = 0.163 (d = 0.33)
 ICC; 2.1 (95 % CI) 0.81 (0.66–0.89) 0.82 (0.72–0.89)
 systematic bias [cm] −0.91 0.39
 random bias (95 % CI) [cm] ±4.0 (−4.9–3.1) ±4.2 (−3.8–4.6)
 SEM [cm] 0.89 0.91
  1. ANOVA = Analysis of Variance (Bonferroni post hoc test) and effect size (i.e., Cohen’s d) in brackets; ICC; 2.1 = Intraclass Correlation Coefficient; SEM = Standard Error of Measurement; 95 % CI = 95 % Confidence Interval