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

Figure 1

Study procedure and sequence of measurements. Measurement points to fill out self-report measures of subjective vitality (SV) and other subjective state variables before first rest (t0), after first rest (t1), after the first Qi Gong exercise (t2), after the second Qi Gong exercise (t3), and after second rest (t4). HRV parameters were calculated from the recorded electrocardiogram (ECG) for the periods of initial resting state in supine position (RS0), the first Qi Gong exercise (Qi1), the second Qi Gong exercise (Qi2), and the second resting state in supine position (RS1).