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  Acute microcirculatory responses induced by skin-surface vibration stimulation at a frequency near the heart rate
 
 
Titel: Acute microcirculatory responses induced by skin-surface vibration stimulation at a frequency near the heart rate
Auteur: Hsiu, Hsin
Hsu, Wei-Chen
Hsu, Chia-Liang
Lin, Wei-Chung
Ho, Ming-Hung
Chen, Chao-Tsung
Hu, Hsiao-Feng
Verschenen in: Biorheology
Paginering: Jaargang 49 (2012) nr. 1 pagina's 15-25
Jaar: 2012-04-18
Inhoud: Objective: We aimed to elucidate the frequency-specific microcirculatory blood-flow (MBF) effect induced by weak vibration stimulation (VS) in healthy human subjects. Methods: VS was implemented by a rod (connected to a DC motor) hitting a water-filled bag. VS was applied to the left palm at frequencies near to the heart rate (HR) (n=35; Group A) and 50% higher than the HR (n=20; Group B), and laser-Doppler-flowmetry measurements were made on the back of the left hand (Site 1). A control group without applying VS was also used (n=21). Results: The mean MBF (MMBF), pulsatile MBF, and pulse width at Site 1 only increased significantly in Group A, and the coefficient of variance of the MMBF sequence increased significantly at Site 1 in Groups A and B. Conclusion: These results illustrate the VS-induced changes in the regulatory activities of arteriolar openings, and improvement of the MBF near the VS application site in Group A. The improvement in MBF depended on whether the VS frequency was near to, or higher than the HR. The present findings may be pertinent to amelioration of disease induced by an abnormal MBF.
Uitgever: IOS Press
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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