|LETTER TO EDITOR
|Year : 2015 | Volume
| Issue : 1 | Page : 108
Study of autonomic nervous system activity in postmenopausal women
Arunima Chaudhuri1, NG Borade2
1 Departmant of Physiology, Burdwan Medical College and Hospital, Burdwan, West Bengal, India
2 Departmant of Physiology, DY Patil Medical College, Pune, Maharashtra, India
|Date of Web Publication||19-Jan-2015|
Departmant of Physiology, Burdwan Medical College and Hospital, Burdwan, West Bengal
|How to cite this article:|
Chaudhuri A, Borade N G. Study of autonomic nervous system activity in postmenopausal women. Saudi J Sports Med 2015;15:108
Menopause is best defined as the absence of menses for 12 consecutive months. , There is a change in hormonal status with the progression of menopausal duration. There are also changes in functions of different organs of the body as well as autonomic nervous system responses with advancement of age and menopausal duration. , These changes may alter autonomic nervous system activity and increase the incidence of cardiovascular diseases. ,, To study these changes, 120 postmenopausal women without any gross systemic were divided into five groups according to menopausal duration. Pulse, blood pressures, body mass index (BMI), and waist/hip ratio were measured, lipid profile analyzed, and autonomic function tests carried out. Age, pulse rate, systolic blood pressure, BMI and waist/hip ratio, total cholesterol, and low density lipoprotein (LDL) were significantly increased and autonomic functions worsened with the progress of menopausal duration. Triglyceride values were significantly increased in subjects having abnormal autonomic functions. BMI and waist/hip ratio were positively correlated with the results of the Orthostatic Tolerance Test (OTT) and negatively correlated with other autonomic function tests. We designed another study to evaluate the relationship of gender and lipid profile with cardiac parasympathetic reactivity. Lipid profile showed significant increase in values of total cholesterol, LDL, and triglyceride values, and significant decrease in high density lipoprotein (HDL) values in younger males when compared with premenopausal females; no difference in these parameters were noticed when comparison was done between elderly males and females. Deep breath test and 30:15 R-R interval ratios showed significant decrease in values in younger males when compared with age-matched premenopausal females. Total cholesterol, triglyceride, and LDL values were negatively correlated with parasympathetic function tests; whereas HDL value was positively correlated with parasympathetic function tests.  We further decided to compare lipid profile and autonomic functions of postmenopausal women on vegetarian and non-vegetarian diet. One hundred and twenty postmenopausal women (menopausal duration and age-matched) were selected. BMI and waist/hip ratios calculated, lipid profile analyzed, and autonomic function tests were carried out. Significant increases in total cholesterol, triglyceride, LDL, and cholesterol/HDL ratio and worsening of autonomic function tests were noticed in women on non-vegetarian diet. Total cholesterol, triglyceride, and LDL values were negatively correlated with autonomic function tests except OTT, while HDL value was positively correlated with autonomic function tests except OTT.
Life style modification may alter the quality of life in postmenopausal women and decrease mortality and morbidity due to cardiovascular diseases. ,
| References|| |
Fu CH, Yang CC, Lin CL, Kuo TB. Alteration of cardiovascular autonomic functions by vegetarian diets in postmenopausal women is related to LDL cholesterol levels. Chin J Physiol 2008;51:100-5.
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