A Method for Noninvasive Diagnostic Examination of the Tympanic Membrane Using Probing Polyharmonic Sound Signals

An innovative technology of an athlete’s organism functional reserves increase based on bioacoustical stimulation of the respiratory system

“…The method of bioacoustical stimulation of respiratory system is based on the effect of reserve alveoli opening and the area of cross section of alveolar ways and respiratory bronchial tubes increase, lung capacity increase [12,15]. In terms of high-intensity sounds of low-frequency influence at resonance low-frequency, where the resistance is minimal, pressure is in a decreasing wave with some decrease transfers according to air canals to the whole depth of air cavity.…”

“…For technical realization of the method we created hardware-software complex of respiratory system bioacoustical stimulation [7,10,12,14,18]. Acoustic impedance measurement helps to define individual resonance frequencies and the coefficients of sound absorption in a wide range of frequencies.…”

“…Acoustic impedance measurement helps to define individual resonance frequencies and the coefficients of sound absorption in a wide range of frequencies. Bioacoustical stimulation was realized by a scanning signal within the range of the frequencies 22-36 Hz on the level 3 dB from maximal value of absorption coefficient [7,8,12,15]. At the phase of the inhalation frequency decreased and at the phase of exhalation increased.…”

“…At the end of the procedure all information was registered and saved in a form of a file in the database. Most indicesacoustic characteristics of a respiratory channel include 6 indices [7,8,12,15,[22][23][24][25]26]:…”

“…Such technologies include the technologies based on the influence of low-frequency vibrations on a person's respiratory system [7][8][9][10]. Experimental works results analysis helps to suppose that respiratory system stimulation by low-frequency acoustic vibrations can lead to lung capacity increase, gaseous metabolism improvement and to endurance and working capacity increase [11][12][13][14][15].…”