A STUDY ON ADAPTION PROCESS CAROTID BAROREFLEX IN ISOMETRIC & DYNAMIC EXERCISE

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CHANGIZI ASHTIANI S.; KHAMENEH SAEID; SALIMI KHALIGH H.

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Journal: ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ) Year:2000 | Volume:3 | Issue:2 (11) Page(s): 13-17

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Title

A STUDY ON ADAPTION PROCESS CAROTID BAROREFLEX IN ISOMETRIC & DYNAMIC EXERCISE

Author(s)

CHANGIZI ASHTIANI S. | KHAMENEH SAEID | SALIMI KHALIGH H. | Issue Writer Certificate

Keywords

CAROTID BOROREJLEXQ3

ISOMETRIC EXERCISEDYNAMIC EXERCISEQ4

HUMANSQ4

Abstract

Arterial baroreflexes are the most important mechanism of cardiovascular system that can respond to rapid blood pressure changes during everyday activities. In this study we have assessed adaptive responses of carotid baroreflexes during isometric & dynamic exercise and compared the results with acute response during rest. The applied work loud in dynamic exercise was 100 watts and in isometric exercise it was 50% of calculated maximum force .Experiments were performed on 12 young male healthy sedentary volunteers aged between 21-28. This study was done in three exercises. In all three protoc1es, adaptation process during stimulation was assessed by studying of beat to beat R-R interval of ECG. In order to stimulate the carotid baroreceptors neck suction device Eckberg model was used and duration of stimulation was 10 seconds. ECG was taken carefully. Examination of adaptative process during stimulation showed maximal response achieved in resting state is statistically significant compared with that of isometric and dynamic exercise respectively (P<0.038, P<0.007). where as, comparison of adaptive response of rest state with isometric exercise and dynamic exercise was not statistically significant. There is no significant relation between maximal and adaptative response in dynamic and isometric exercises, although in general adaptative process in resting state compared with isometric and dynamic exercise was more pronounced. This observation confirmed that Vagal withdrawal with alimited degree of sympathic stimulation are challenged in this phenomenon. In other words the SA response to vagal stimulation is retarded by sympathic stimulation.

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APA: Copy

CHANGIZI ASHTIANI, S., KHAMENEH, SAEID, & SALIMI KHALIGH, H.. (2000). A STUDY ON ADAPTION PROCESS CAROTID BAROREFLEX IN ISOMETRIC & DYNAMIC EXERCISE. ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ), 3(2 (11)), 13-17. SID. https://sid.ir/paper/69756/en

Vancouver: Copy

CHANGIZI ASHTIANI S., KHAMENEH SAEID, SALIMI KHALIGH H.. A STUDY ON ADAPTION PROCESS CAROTID BAROREFLEX IN ISOMETRIC & DYNAMIC EXERCISE. ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ)[Internet]. 2000;3(2 (11)):13-17. Available from: https://sid.ir/paper/69756/en

IEEE: Copy

S. CHANGIZI ASHTIANI, SAEID KHAMENEH, and H. SALIMI KHALIGH, “A STUDY ON ADAPTION PROCESS CAROTID BAROREFLEX IN ISOMETRIC & DYNAMIC EXERCISE,” ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ), vol. 3, no. 2 (11), pp. 13–17, 2000, [Online]. Available: https://sid.ir/paper/69756/en

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