Coupled fluctuations of blood pressure and heart rate time series
The human cardiovascular system governs the heart rate and blood pressure. A neural sensor called the baroreceptor is controlled by the the blood pressure; the sensitivity of its reflex is important in determining the cause of hypertension. This sensitivity may be obtained from the coupled fluctua...
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| Format: | Thesis |
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University of Oxford;Mathematical Institute
1995
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| _version_ | 1826312198925844480 |
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| author | Gilmour, I |
| author_facet | Gilmour, I |
| author_sort | Gilmour, I |
| collection | OXFORD |
| description | The human cardiovascular system governs the heart rate and blood pressure. A neural sensor called the baroreceptor is controlled by the the blood pressure; the sensitivity of its reflex is important in determining the cause of hypertension. This sensitivity may be obtained from the coupled fluctuations of blood pressure and heart rate time series. However, the current method used assumes locally linear coupling of the heart rate and blood pressure, which has been shown to be nonlinear. In this dissertation we apply this current method to sample data, investigate improvements and, having gained further insight into the cardiovascular system from models of the system, offer an alternative method of measuring the baroreceptor relex sensitivity. |
| first_indexed | 2024-03-07T08:25:28Z |
| format | Thesis |
| id | oxford-uuid:f273979e-cd7b-42a4-8c0b-4823344405bc |
| institution | University of Oxford |
| last_indexed | 2024-03-07T08:25:28Z |
| publishDate | 1995 |
| publisher | University of Oxford;Mathematical Institute |
| record_format | dspace |
| spelling | oxford-uuid:f273979e-cd7b-42a4-8c0b-4823344405bc2024-02-12T11:32:37ZCoupled fluctuations of blood pressure and heart rate time seriesThesishttp://purl.org/coar/resource_type/c_db06uuid:f273979e-cd7b-42a4-8c0b-4823344405bcMathematical Institute - ePrintsUniversity of Oxford;Mathematical Institute1995Gilmour, IThe human cardiovascular system governs the heart rate and blood pressure. A neural sensor called the baroreceptor is controlled by the the blood pressure; the sensitivity of its reflex is important in determining the cause of hypertension. This sensitivity may be obtained from the coupled fluctuations of blood pressure and heart rate time series. However, the current method used assumes locally linear coupling of the heart rate and blood pressure, which has been shown to be nonlinear. In this dissertation we apply this current method to sample data, investigate improvements and, having gained further insight into the cardiovascular system from models of the system, offer an alternative method of measuring the baroreceptor relex sensitivity. |
| spellingShingle | Gilmour, I Coupled fluctuations of blood pressure and heart rate time series |
| title | Coupled fluctuations of blood pressure and heart rate time series |
| title_full | Coupled fluctuations of blood pressure and heart rate time series |
| title_fullStr | Coupled fluctuations of blood pressure and heart rate time series |
| title_full_unstemmed | Coupled fluctuations of blood pressure and heart rate time series |
| title_short | Coupled fluctuations of blood pressure and heart rate time series |
| title_sort | coupled fluctuations of blood pressure and heart rate time series |
| work_keys_str_mv | AT gilmouri coupledfluctuationsofbloodpressureandheartratetimeseries |