A new view on the quality of Jacik's test

  • Cuberek R
  • Jakubec A
  • Hulka K
  • et al.
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Background: A self-assessment of physical fi tness requires a search for motor tests which do not make high material, spatial and skill demands necessary for tests' realization. In this manner, Jacík's test (JT) appears to be an appropriate one. Nevertheless, existing information about the test quality is not complete. Based on the motion content of this test, the test performance can be considered to be determined by the level of aerobic fi tness. Objective: The aim of this study is to assess the reliability of JT and to determine degree of infl uence of aerobic fi tness on JT performance. Methods: Eighty four PE university students completed the study - 43 female (participated in the validity study; 22.2 ± 2.0 year; BMI = 23.2 ± 2.5 kg/m 2 ; JT performance = 79.1 ± 9.2 points; VO 2 max = 44.6 ± 4.7 ml/kg/min.) and 41 males (participated in the reliability study; 21.5 ± 1.2 year; BMI = 25.2 ± 1.6 kg/m 2 ; JT performance = 83.9 ± 8.2 points in the fi rst trial and 87.5 ± 9.1 points in the second trial respectively). The degree of infl uence of aerobic fi tness on the performance in JT is expressed as association between the performance in JT and VO 2 max estimation (measured by Maximal exercise test realized on a treadmill). The objectivity and the relative reliability of JT are expressed by ICC. Characteristics SEM and Bland-Altman's 95% limits of agreement were computed to assess absolute reliability of JT. Results: A little of shared variability of JT and VO 2 max respectively was found out (only 13.3%). ICC inter-raters = 0.997 indicates a high degree of objectivity (inter-rater reliability). The result of ICC inter-trials = 0.790 points to a "questionable" relative reliability. The systematic error of measurement equals to 3.54 points. Both SEM (3.96 points) and Bland-Altman's 95% limits of agreement (-9.2, 16.3) point out to the unsatisfactory degree of absolute reliability. Conclusion: Mainly due to the low degree of the test's reliability (both relative and absolute), JT is not an accurate tool for assessing physical fi tness in PE university students. The interpretation of testing results could be misleading.




Cuberek, R., Jakubec, A., Hulka, K., & Botek, M. (2015). A new view on the quality of Jacik’s test. Acta Gymnica, 42(2), 33–40. https://doi.org/10.5507/ag.2012.010

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