Table 4 Comparisons of HRV metrics for 5-minute pre- and post-exercise (∆values = mean values post-exercise – mean pre-exercise; n = 13).

From: Heart rate variability response of intensity-matched strength training dependent on body position in females: a pilot randomized crossover study

 

SM

50% 3-RM

LP

50% 3-RM

 

Effect size

∆ HRV metrics

  

p value

η²p

RRI in ms

∆ pre-post

-58.22 ± 5.30

-15.12 ± 21.98

0.008

0.458

RMSSD in ms

∆ pre-post

-4.98 ± 5.61

-10.68 ± 33.37

0.893

-

DFAa1

∆ pre-post

-0.02 ± 0.09

-0.03 ± 0.05

0.679

0.015

LF/HF

∆ pre-post

-2.31 ± 3.59

-0.06 ± 0.61

0.049

0.290

  1. The values are presented as the means and standard deviations, paired Student’s t-test, η2p = partial eta square, or Wilcoxon matched-pairs rank test, ∆ pre-post = mean value last post-exercise period (5-min.) – mean value pre-exercise (5-min); RRI = RR intervals, RMSSD = Root-Mean-Square-of-Successive-Differences, DFAa1: short-term scaling exponent alpha1 of Detrended Fluctuation Analysis, LF/HF = ratio of low frequency and high frequencies.
  2. Significant values are in bold.
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