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Estrogen Attenuates the Pressor Response Mediated by the Group III Mechanoreflex
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Seung-Ae Park, Jong-Kyung Kim
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J Korean Acad Nurs 2011;41(2):191-196. Published online April 30, 2011
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DOI: https://doi.org/10.4040/jkan.2011.41.2.191
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Abstract
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Purpose
We investigated the effects of group III mechanoreceptors to cardiovascular responses in both pre-menopausal woman and post-menopausal woman during passive ankle dorsiflexion (PAD).
Methods
Twenty healthy volunteers (10 post-menopausal women and 10 pre-menopausal women) were recruited for this study. Stroke volume (SV), heart rate (HR), cardiac output (CO), and total vascular conductances (TVC) were measured continuously throughout the experiment. To stimulate the group III mechanoreceptors, PAD was performed for one minute.
Results
The results showed that mean arterial pressure (MAP) mediated by the mechanoreflex activation was significantly increased in both groups. However, this pressor response was significantly higher in post-menopausal women. This reflex significantly increased both SV and CO in pre-menopausal women, while there were no differences in post-menopausal women. There was no difference in HR in either group. The mechanoreflex significantly decreased TVC in post-menopausal woman, while there was no difference in pre-menopausal woman.
Conclusion
The results indicate that the excessive pressor response mediated by the mechanoreflex occurs due to overactivity of group III mechanorecptors and the mechanism is produced mainly via peripheral vasoconstriction in post-menopausal women.
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Citations
Citations to this article as recorded by 
- Age-related alterations in the cardiovascular responses to acute exercise in males and females: role of the exercise pressor reflex
A. K. Grotle, J. V. Langlo, E. Holsbrekken, A. J. Stone, H. Tanaka, P. J. Fadel Frontiers in Physiology.2023;[Epub] CrossRef - Influence of Age and Estradiol on Sympathetic Nerve Activity Responses to Exercise in Women
MEGAN M. WENNER, JODY L. GREANEY, EVAN L. MATTHEWS, SHANE MCGINTY, JASDEEP KAUR, WANPEN VONGPATANASIN, PAUL J. FADEL Medicine & Science in Sports & Exercise.2022; 54(3): 408. CrossRef - Oral contraceptives and menstrual cycle influence autonomic reflex function
Elnaz Assadpour, Ilana Ivry, Sara Wasef, Baithat Adeyinka, Kevin R. Murray, Heather Edgell Physiological Reports.2020;[Epub] CrossRef - Skeletal muscle metaboreflex is enhanced in postmenopausal women
Hyun-Min Choi, Charles L. Stebbins, Hosung Nho, Kyung-Ae Kim, Chanho Kim, Jong-Kyung Kim European Journal of Applied Physiology.2012; 112(7): 2671. CrossRef
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The Role Adaptation Process of The Executive Director of Nursing Department
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Sung-Ye Kang, Kwang-Ok Park, Jong-Kyung Kim
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J Korean Acad Nurs 2010;40(6):785-798. Published online December 31, 2010
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DOI: https://doi.org/10.4040/jkan.2010.40.6.785
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Abstract
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Purpose
The purpose of this study was to identify the role adaptation process experienced by executive directors of nursing department of general hospitals.
Methods
Data were collected from 9 executive nursing directors though in-depth interviews about their experiences. The main question was "How do you describe your experience of the process of role adaptation as an executive nursing director?" Qualitative data from field and transcribed notes were analyzed using Strauss & Corbin's grounded theory methodology.
Results
The core category of experience of the process of role adaptation as an executive nursing director was identified as "entering the center with pushing and pulling". The participants used five interactional strategies; 'maintaining modest attitudes', 'inquiring about trends of popular feeling', 'making each person a faithful follower', 'collecting & displaying power', 'leading with initiative'. The consequences of role adaptation in executive nursing directors were 'coexisting with others', 'immersing in one's new role with dedication', and 'having capacity for high tolerance'. The types of role adaptations of executive directors in nursing department were friendly type, propulsive type, accommodating type.
Conclusion
The results of this study produced useful information for executive nursing directors on designing a self-managerial program to enhance role adaptation based on interactional strategies.
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Citations
Citations to this article as recorded by 
- Experience of Hospital Administrative Nurses' Work Adjustment
Hyun-Ju Lee, Jae-Hyun Ha, Yun-Seo Jung, Jungmi Yun Journal of Korean Academy of Nursing Administration.2019; 25(5): 424. CrossRef - Turnover Experience of Male Nurses
Hyunsu Kim, Jeongseop Lee Journal of Korean Academy of Nursing.2017; 47(1): 25. CrossRef - Experience of Role Adaptation from Nurse to Member of the Nursing Faculty
Kwang-Ok Park, Jong Kyung Kim, Mi Yu Journal of Korean Academy of Nursing.2016; 46(2): 168. CrossRef - Relationship among Nurses' Attitude on Job Rotation, Job Stress and Organizational Commitment
Eun Young Lee, Na Hyun Kim Korean Journal of Occupational Health Nursing.2012; 21(2): 154. CrossRef - A Model on Turnover Intention of Chief Nurse Officers
Kwang-Ok Park, Jong Kyung Kim, Se Young Kim, Sunju Chang Journal of Korean Academy of Nursing.2012; 42(1): 9. CrossRef
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