2007 Fiscal Year Final Research Report Summary
Studies on Assessment of Psycho physiological Stress using Multipurpose Noninvasive Cardiovascular RegulationMonitoring Systems
| Project/Area Number |
17300149
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biomedical engineering/Biological material science
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| Research Institution | Kanazawa University |
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Principal Investigator |
YAMAKOSHI Ken-ichi Kanazawa University, Graduate School of Natural Science and Technology, Professor (40014310)
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| Co-Investigator(Kenkyū-buntansha) |
TANAKA Shinobu Kanazawa University, Graduate School of Natural Science and Technology, Professor (40242218)
NOGAWA Masamichi Kanazawa University, Graduate School of Natural Science and Technology, Professor (40292445)
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| Project Period (FY) |
2005 – 2007
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| Keywords | physiological stress / blood pressure / cardiac output / volume compensation method / impedance cardioaraphy / 呼吸療法 / ストレス評価 / ストレス緩和 |
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| Research Abstract |
Using a multipurpose noninvasive beat-by-beat cardiovascular monitoring system, stress-induced cardiovascular re activities and effectiveness of newly designed miniature slow-breathing guiding device as stress reduction method were evaluated within stressful tasks to quantify the degree of mental and physical stress conditions. The multipurpose noninvasive beat-by-beat cardiovascular monitoring system designed by head investigator could offer beat-by-beat blood pressure based on the volume compensation method, cardiac output based on the electric impedance/admittance cardiography and same physiological related parameters, such as respiration rate, pulse wave velocity and so on. The miniature slow-breathing guiding device was fabricated using a miniature vibration motor.
In the acute stressful tasks, arithmetic and cold pressor, the stress-induced cardiovascular reactivities were significantly reduced with the slow-breathing (6 rate/min) guiding device especially blood pressure and heat; rate (n=7, p<0.05). The prototype system combining the cardiovascular monitor with the breath controller appears to be useful and helpful in terms of self-monitoring of hemodynamic changes as well as self-care for the improvement of the cardiovascular function during daily living.
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