Fig. 1From: Decreased heart rate variability responses during early postoperative mobilization – an observational studyTotal heart rate variability (HRV) and low to high frequency ratio (LF/HF) in THA patients during postural change before (pre), 6- and 24 h after surgery. Data represent geometric means with 95 % confidence intervals. # Different from preoperative evaluation (P < 0.05), *Different from supine (P < 0.05)Back to article page