Systems, devices, components and methods for triggering or inducing resonance or high amplitude oscillations in a cardiovascular system of a patient
Various embodiments of systems, devices, components, and methods for providing external therapeutic vibration stimulation to a patient are disclosed and described. Therapeutic vibration stimulation is provided to at least one location on or adjacent to a patient's skin (such as through clothing or a layer disposed next to the patient's skin), and is configured to trigger or induce resonance or high amplitude oscillations in a cardiovascular system of the patient. Inducing such resonance can aid in training autonomic reflexes and improve their functioning.
1. A method of providing vibration stimulation therapy to a patient, comprising:
determining, using a device that includes a processor and a vibration signal generator, an approximated resonance frequency corresponding to one of a plurality of resonance frequencies including one or more of heart rate, blood pressure, vascular tone, and stroke volume of a cardiovascular system associated with the patient;
determining, using the processor, parameters for at least one vibration stimulation signal based on the approximated resonance frequency of the cardiovascular system associated with the patient; and
vibrationally inducing the approximated resonance frequency in the cardiovascular system associated with the patient by repetitively delivering, by the vibration signal generator, a vibration stimulation signal having the determined parameters to at least one location on or adjacent to the patient.
2. The method of claim 1 , wherein the parameters include a first time period associated with a first type of vibration stimulation signal and a second time period associated with a second type of vibration stimulation signal and wherein a third period that is equivalent to a combination of the first time period and the second time period and that is also equivalent to the approximated resonance frequency of the cardiovascular system of the patient.
3. The method of claim 2 , wherein the vibration stimulation signal includes the first type of the vibration stimulation signal being successively delivered to the patient over the first time period and the second type of the vibration stimulation signal being delivered to the patient over the second time period, the second time period being interposed between instances of the first time period.
4. The method of claim 3 , wherein the first type of the vibration stimulation signal varies over the first time period.
5. The method of claim 3 , wherein the frequency of the vibration stimulation signal varies over the first time period.
6. The method of claim 3 , wherein the second type of the vibration stimulation signal varies over the second time period.
7. The method of claim 3 , wherein the frequency of the vibration stimulation signal varies over the second time period.
8. The method of claim 3 , wherein the first type of the vibration stimulation signal corresponds to an active mode in which the vibration stimulation signal is delivered to the patient over the first time period and wherein the second type of the vibration stimulation signal corresponds to an inactive mode in which the vibration stimulation signal is inhibited from being delivered to the patient over the second time period.
9. The method of claim 3 , wherein the first type of the vibration stimulation signal has an increasing frequency vibration that is delivered to the patient over the first time period and wherein the second type of the vibration stimulation signal has a decreasing frequency vibration that is delivered to the patient over the second time period.
10. The method of claim 3 , wherein the first time period is adjacent to the second time period.
11. The method of claim 2 , wherein the third time period is determined based on the approximated resonance frequency corresponding to a heart rate resonance frequency of the cardiovascular system associated with the patient.
12. The method of claim 1 , wherein the vibration signal generator is a vibration motor that provides external mechanical vibration stimulations to the patient.
13. The method of claim 1 , wherein the vibration signal generator is an audio source element that provides vibration stimulations to the patient.
14. The method of claim 1 , wherein the vibration signal generator is an electromagnetic transducer that provides vibration stimulations to the patient.
15. The method of claim 1 , wherein the vibration signal generator is a piezoelectric element that provides vibration stimulations to the patient.
16. The method of claim 1 , wherein the approximated resonance frequency of the cardiovascular system associated with the patient is determined based on a height and a gender of the patient.
17. The method of claim 1 , wherein the approximated resonance frequency is determined based on a power spectral density peak determined from power spectral density consecutive R-wave to R-wave interval data of the patient.
18. The method of claim 17 , wherein the approximated resonance frequency based on the power spectral density peak is between about 0.075 Hz and 0.125 Hz.
19. The method of claim 17 , wherein the approximated resonance frequency based on the power spectral density peak is between about 0.02 Hz and 0.04 Hz.