Figure 1From: Body mass index contributes to sympathovagal imbalance in prehypertensives Low frequency (LF) and high frequency (HF) powers as mean percentage of total power (TP) of heart rate variability (HRV) spectrum. Group 1: Normotensives having normal BMI; Group 2: Prehypertensives having normal BMI; Group 3: Prehypertensives having higher BMI.Back to article page