Figure 1.

Variation of heart rate variability parameters significantly affected by Ramadan fasting. Graph showing variation of heart rate variability parameters during and after Ramadan, which have been significantly affected in fasting condition: (a) R-R interval (ms), (b) SDNN (ms), (c) pNN50 (%), (d) SD2 (ms), (e) relative power of LF band (%), and (f) stress index (pts). ^∗Statistically different compared to morning period of the same day, ^#statistically different to afternoon period of the same day, ^≠significantly different compared to same period of non-fasting day.