The use of extremely low frequencies (ELF) in pulsed form (PELF) for therapeutic use: a pilot study

Following a previous Investigation on the therapeutic effects of Extremely Low Frequency in pulsed form - Pulsed Extremely Low Frequency (PELF) - this research explores the possibility of detecting the effects of PELF on the biological system by the use of the Heart Rate Variability (HRV) analysis. It is concluded that there is no overall change in HRV in presence of very weak - less than 25 /spl mu/T - PELF. However when the HRV is considered together with Heart Rate (HR) and Blood Pressure (BP) some interrelation can be detected.