Relaxation or Regulation: The Acute Effect of Mind-Body Exercise on Heart Rate Variability and Subjective State in Experienced Qi Gong Practitioners

Figure 3

Changes in parasympathetic modulation over rest and Qi Gong in the overall and the two national subsamples. Estimated means of parasympathetic modulation (lnHF; natural logarithm of power in the high-frequency band) during initial rest (RS0), first Qi Gong (QG1), 2nd Qi Gong (QG2), and 2nd rest (RS1). Displayed are the means for the overall sample, the Chinese sample (CN), and the German sample (GER).