Page 126 - Petelin Ana. Ur. 2022. Zdravje otrok in mladostnikov / Health of children and adolescents. Proceedings. Koper: Založba Univerze na Primorskem/University of Primorska Press
P. 126
avje otrok in mladostnikov | health of children and adolescents 126 within the group with respect to time. Wilcoxon signed rank test was used for
non-normal distributions. R-value was used to determine the effect size. Values
> 0.3 represented a medium effect size and values > 0.5 a large effect size (Field,
2009). The level of statistical risk was determined at a value of p < 0.05.
Results
The results of Wilcoxon signed rank test show that the intervention had a sta-
tistically significant effect, with a large effect size (Z = –2.934, p = 0.003; r =
–0.626), on the result (11,5%) in maximal inspiratory power in the intervention
group (Figure 1). Statistically significant differences (14%) were also found in
control group (Z = –2.023, p = 0.043; r = 0.640). Results of the same test show a
statistically significant influence of the intervention with a large effect size (Z =
–3.413, p = 0.001, r = 0.588) on the result (9,0%) of the intervention group in the
maximum inspiratory flow parameter (Figure 2). After ten days the results (10,9
%) also improved in control group (Z = –2,023; p = 0, 043, r = –0,649). Time and
group factors could not be calculated in non-parametric tests.
Figure 1: Graphic representation of the box with whiskers for the values
of the variable maximal inspiratory power (cmH2O)
Figure 2: Graphic representation of the box with whiskers for the values
of the variable maximal inspiratory flow (l/s)
non-normal distributions. R-value was used to determine the effect size. Values
> 0.3 represented a medium effect size and values > 0.5 a large effect size (Field,
2009). The level of statistical risk was determined at a value of p < 0.05.
Results
The results of Wilcoxon signed rank test show that the intervention had a sta-
tistically significant effect, with a large effect size (Z = –2.934, p = 0.003; r =
–0.626), on the result (11,5%) in maximal inspiratory power in the intervention
group (Figure 1). Statistically significant differences (14%) were also found in
control group (Z = –2.023, p = 0.043; r = 0.640). Results of the same test show a
statistically significant influence of the intervention with a large effect size (Z =
–3.413, p = 0.001, r = 0.588) on the result (9,0%) of the intervention group in the
maximum inspiratory flow parameter (Figure 2). After ten days the results (10,9
%) also improved in control group (Z = –2,023; p = 0, 043, r = –0,649). Time and
group factors could not be calculated in non-parametric tests.
Figure 1: Graphic representation of the box with whiskers for the values
of the variable maximal inspiratory power (cmH2O)
Figure 2: Graphic representation of the box with whiskers for the values
of the variable maximal inspiratory flow (l/s)
