Figure 2 | Scientific Reports

Figure 2

From: Standardized massage interventions as protocols for the induction of psychophysiological relaxation in the laboratory: a block randomized, controlled trial

Figure 2

Changes in high frequency heart rate variability [ln(HF-HRV) in ln(ms2)] across the experiment in the three different experimental conditions vagus nerve massage (VNM; n = 19), soft shoulder massage (SSM; n = 22) and resting control group (RCG; n = 19). The intervention interval is shaded. Values are depicted as means ± SE. Time3 × Touch Effect represents the interaction between the cubic effect of time and Touch Effect (a dummy variable indicating resting control group = 0, soft shoulder massage = 1, vagus nerve massage = 1). Time3 × Vagus Effect represents the interaction between the cubic effect of time and Vagus Effect (a dummy variable indicating soft shoulder massage = 0, vagus nerve massage = 1).

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