Modeling resonance effects of the electromagnetic radiations on the cardiovascular system

摘要

The Cardiovascular system (CVS) consists of the heart and blood vessels. The activities of heart and lung are responsible for pumping and return path of the blood through a closed circuit of elastic vessels. Time-frequency analysis of signals derived from blood flow revealed the existence of five almost periodic frequency components having average frequencies of 1.0, 0.2, 0.1, 0.03 and 0.01Hz due to heartbeat, respiration, myogenic activity of smooth muscles, neurogenic and endothelial activity respectively. These subsystems were modeled as coupled non linear oscillators having linear coupling in presence of noise. We have demonstrated that due to resonance effects of the electromagnetic radiations (EMRs) on the CVS, the power spectrum of blood flow changes thereby we have concluded that the blood flow is influenced by resonance effects and safety standards can be derived based on this model.