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Table 1 The characteristics of the study participants

From: Can we hit prenatal depression and anxiety through HIIT? The effectiveness of online high intensity interval training in pregnant women during the COVID-19 pandemic: a randomized controlled trial

Variable

Group

HIIT

EDU

Statistics1

p-value

Effect size2

n = 34, M ± SD

n = 20, M ± SD

Age (years)

31 ± 4

32 ± 4

Z =  − 0.675

0.500

0.185

BMI (height/weight2)

24.4 ± 2.8

25.4 ± 3.2

t =  − 1.141

0.259

0.322

Week of gestation

20 ± 4

24 ± 4

Z =  − 2.741

0.006

0.780

Initial VO2max (kg/ml/min)

25.6 ± 4.4

23.7 ± 3.6

Z =  − 1.505

0.132

0.417

Initial weekly PA (METs)

2625.3 ± 1823.2

2266.0 ± 1816.5

Z =  − 0.752

0.452

0.206

  1. 1In case of variables with the distribution close to normal distribution we used parametric testing with Student t test and in case of variables with a distribution significantly different from the normal distribution we used non-parametric testing with Mann–Whitney U test
  2. 2In case of variables with the distribution close to normal distribution we used Cohen’s d for the evaluation of effect sizes and in case of variables with a distribution significantly different from the normal distribution we used rank-biserial correlation
  3. Bold type indicates significant difference in the outcome variable