Table 1.
Mean (SD) of the demographic and morphometric characteristics, and p-values.
Fig 1.
The picture of the position for the passive hip external rotation (HER) measurement.
Fig 2.
Presentation of classical ballet positions and electrode placement.
First classical ballet position (CP1): both feet are turned in opposite directions, heels touch, the longitudinal axes of the feet form a single straight line. Second classical ballet position (CP2): position of the feet is the same as in CP1 but there is a distance of one foot between the heels. Third classical ballet position (CP3) with forward setting: both feet are turned in opposite directions, right foot is in front with heel touching the middle of the left foot. Third classical ballet position (CP3) with backward setting: position is the same as previous but the left foot is in front.
Fig 3.
Presentation of classical ballet positions and electrode placement.
Fourth classical ballet position (CP4) with forward setting: both feet are turned in opposite directions, right foot is in front with heel at the level of the middle of the left foot with a one-foot distance in anterior-posterior direction between the feet. Fourth classical ballet position (CP4) with backward setting: position is the same as previous but the left foot is in front. Fifth classical ballet position (CP5) with forward setting: both feet are turned in opposite directions, right foot is in front toes of each foot touch the heel of the other. Fifth classical ballet position (CP5) with backward setting: position is the same as previous but the left foot is in front.
Table 2.
Mean (SD) of the angles and bioelectrical activity in the first classical position (CP1) and the second classical position (CP2), and p-values.
Table 3.
Mean (SD) of the angles and bioelectrical activity in the third classical position (CP3), and p value, F statistic, effect size estimates and observed power of the repeated-measures ANOVA for group and setting factors.
Table 4.
Mean (SD) of the angles and bioelectrical activity in the fourth classical position (CP4), and p value, F statistic, effect size estimates and observed power of the repeated-measures ANOVA for group and setting factors.
Table 5.
Mean (SD) of the angles and bioelectrical activity in the fifth classical position (CP5), and p value, F statistic, effect size estimates and observed power of the repeated-measures ANOVA for group and setting factors.
Table 6.
P-values for comparisons between the groups and between the settings in the third classical position (CP3), the fourth classical position (CP4) and fifth classical position (CP5).