Correlations between HRV parameters and the PEDQOL domains “autonomy (AUT)” and “physical function (K)” for the age groups ≤11 years (N = 82) and >11 years (N = 78).

<p>**<0.01 one-tailed; *<0.05 one-tailed.</p

Correlations between HRV parameters and the PEDQOL domain “autonomy”; PC: Computer/Games.

<p>**<0.01 one-tailed; *<0.05 one-tailed.</p

From a group of 469 children (409 children with ECGs) both ECGs and evaluable questionnaires on quality of life were available for n = 160 (≥8 years).

<p>The table shows the distribution parameters of age, sex, BMI and use of PC/cell phone.</p

Correlations between HRV parameters and the PEDQOL domains “autonomy (AUT)” and “physical function (K)” for the female (N = 88) and male (N = 72) children and adolescents.

<p>**<0.01 one-tailed; *<0.05 one-tailed.</p

HRV parameters (mean ± sd) of the whole group calculated for the entire recording (24 h), daytime and nighttime.

<p>Note that the parameter ‘slope beta’ can only be calculated for the entire recording.</p

Distribution parameters of QoL domains.

<p>Physical function (K), emotional functioning (E), cognition (C), autonomy (Aut), social functioning family (Fam), social functioning friends (Fr) and body image (KB).</p

Examples of variations of HRV parameters with age.

<p>Age-related variations of the average RR interval (top) and the standard deviation of the distance between normal-to-normal heartbeats (bottom). The lines denote a polynomial fit of order 2 (dashed line) and the moving average (full line).</p

Correlations between HRV parameters and the PEDQOL domain “autonomy” taking into account the whole group of children and adolescents.

<p>**<0.01 one-tailed; *<0.05 one-tailed.</p

Relationship between the median maternal respiratory rate and the number of synchronization epochs (SE) found per data set.

<p>Data points are shown separately for the Control (+) and Exercise (O) data, the regression line shown is calculated over all data points.</p

Fetal and maternal mean RR interval duration, standard deviation (SDNN) and root mean square of successive differences (RMSSD) found in the subjects’ 18 min. data sets as well as in their synchronization epochs (SE).

<p>All values are given for the original data as well as the surrogate data, except for the 18 min. fetal data sets (only the maternal data sets were shuffled, see text). The values are compared between the Control and Exercise groups. <i>p</i>-values <0.05 in <b>bold type</b>.</p><p>n.a., not applicable.</p><p>Fetal and maternal mean RR interval duration, standard deviation (SDNN) and root mean square of successive differences (RMSSD) found in the subjects’ 18 min. data sets as well as in their synchronization epochs (SE).</p