| Data^{a} | Differences^{b} | Relative reliability^{c} | Absolute reliability |
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T1 Median (Q1, Q3) | T2 Median (Q1, Q3) | GRAND Median (Q1, Q3) | T1 vs. T2 p-value | Spearman (r) *p*-value | ICC (3.1) (95% CI) | SEM^{d} | SDC^{e} | Mean difference between T2 and T1 with 95% confidence interval (95% CI)^{f} |
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**Left knee up** (*n* = 64) | −6.34 (−16.93, 6.26) | 0.66 (−8.40, 10.63) | −2.53 (−11.53, 9.20) | **0.013*** | 0.53 (0.002) | 0.50 (0.17 to 0 .72) | 10.66 | 29.55 | **6.89 (1.98 to 11.81) *** |

**Left knee down (**n = 64) | 1.07 (−6.50, 19.42) | 0.80 (−9.50, 13.42) | 1.07 (−6.76, 15.48) | 0.5496 | 0.68 (< 0.001) | 0.69 (0.45 to 0.83) | 9.85 | 27.30 | −2.15 (−7.19 to 2.89) |

**Right knee up** (*n* = 61) | −6.48 (−16.59, 7.09) | −1.95 (−10.35, 7.87) | −3.20 (−12.06, 7.09) | 0.2059 | 0.61 (< 0.001) | 0.69 (0.45 to 0.84) | 9.04 | 25.06 | 2.83 (−1.91 to 7.56) |

**Right knee down (***n* = 62) | 0.59 (−11.71, 13.52) | 2.75 (−10.04, 12.59) | 2.27 (−10.04, 12.81) | 0.5967 | 0.61 (< 0.001) | 0.64 (0.38 to 0.81) | 9.09 | 25.20 | 1.24 (−3.53 to 6.00) |

*****Denotes a statistically significant change; *n* = denotes the number of measurements done by Qinematic™ for each variable; A negative value (−) denotes a medial displacement for the left knee and a lateral displacement for the right knee, contrariwise a positive value (+) denotes a medial displacement of the right knee and a lateral displacement for the left knee^{a} Test occasion 1 = T1, Test occasion 2 = T2, Q1: 1st quartile (25%), Q3: 3rd (75%). Grand Median = median of all measures from test occasion 1 and 2. All data are in degrees^{b} Wilcoxon signed-rank test (paired test). A *p*-value of *p* < 0.05 was considered to be statistically significant and marked with*^{c} Reliability based on a two-way mixed effect model, calculating the absolute agreement, based on single ratings. ICC (3.1):\( {ICC}_{agreement}=\frac{\sigma_p^2}{\sigma_p^2+{\sigma}_o^2+{\sigma}_{residual}^2},{\sigma}_{error}^2={\sigma}_o^2+{\sigma}_{residual}^2 \)^{d} SEM: Standard error of the measurement: \( {SEM}_{agreement}=\surd \left({\sigma}_o^2+{\sigma}_{residual}^2\right) \)^{e} SDC: Smallest detectable change: *SDC* = ± 1.96 ∗ √ 2 ∗ *SEM*_{agreement.}^{f} Mean difference between the two-test occasion was calculated together with the 95% confidence interval (95% CI). *A 95% CI that does not include zero indicates a systematic change in the mean between T1 and T2.