This in vivo study was conducted to show that respiratory sinus arrhythmia corresponds with the perception of psychosomatic complaints and can be modulated by the exposure to extremely low frequency magnetic fields.
Two groups of menopausal women (aged between 45-55 years), each consisting of 85 subjects, were compared, one of which exhibiting typical menopausal symptoms like difficulties with falling asleep, frequent awakening at night, sweating and weakness during the day and the other being asymptomatic.
The relevant physiological parameters were recorded before and 5, 30, and 60 minutes after the exposure.
Exposure duration: 12 min
The respiratory sinus arrhythmia, heart and breathing rates were substantially greater in women with psychosomatic complaints than in asymptomatic women. In both groups, the respiratory sinus arrhythmia was marginally enhanced following exposure to extremely low frequency magnetic fields.