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Age‐related circulatory responses to whole body cooling: observations by heart rate variability

Alametsä, Jarmo; Kuklane, Kalev LU ; Smolander, Juhani LU ; Vanggaard, Leif; Halder, Amitava LU ; Lundgren Kownacki, Karin LU ; Gao, Chuansi LU and Viik, Jari (2015) In Finnish Journal of eHealth and eWelfare 7(2-3). p.57-64
Abstract
The purpose was to study potential age ‐ related changes in the circulatory system via heart rate variability (HRV) by gradually lowering ambient temperature (0.2°C/min) from thermoneutral (32 C°) towards cold (18 C°). ECG was recorded from a young (31 years) and from an older subject (78 years), both males. During the tests, brachium blood pressure (BP) was recorded.

During the cooling, BP increased in both subjects (young from 95/69 to 132/75 mmHg, old from 125/68 to 176/101 mmHg), the latter exhibiting a prominent rise in diastolic values after cooling. HRV parameters increased in both subjects during the cold exposure being modest in the younger subject as compared to the older one. Also, recovery from the cold in terms of HRV... (More)
The purpose was to study potential age ‐ related changes in the circulatory system via heart rate variability (HRV) by gradually lowering ambient temperature (0.2°C/min) from thermoneutral (32 C°) towards cold (18 C°). ECG was recorded from a young (31 years) and from an older subject (78 years), both males. During the tests, brachium blood pressure (BP) was recorded.

During the cooling, BP increased in both subjects (young from 95/69 to 132/75 mmHg, old from 125/68 to 176/101 mmHg), the latter exhibiting a prominent rise in diastolic values after cooling. HRV parameters increased in both subjects during the cold exposure being modest in the younger subject as compared to the older one. Also, recovery from the cold in terms of HRV was faster in the younger subject. The present preliminary observations indicate that older age is coupled with altered HRV response to a mild whole‐body skin cooling. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
keywords
ECG heart rate variability elderly thermal balance mild whole‐body cooling blood pressure
in
Finnish Journal of eHealth and eWelfare
volume
7
issue
2-3
pages
57 - 64
ISSN
1798-0798
language
English
LU publication?
yes
id
515485a8-2d5a-4180-a812-2dc8d7adbef7 (old id 5410111)
alternative location
http://ojs.tsv.fi/index.php/stty/article/view/50892
date added to LUP
2015-05-21 14:15:51
date last changed
2016-04-16 07:00:46
@article{515485a8-2d5a-4180-a812-2dc8d7adbef7,
  abstract     = {The purpose was to study potential age ‐ related changes in the circulatory system via heart rate variability (HRV) by gradually lowering ambient temperature (0.2°C/min) from thermoneutral (32 C°) towards cold (18 C°). ECG was recorded from a young (31 years) and from an older subject (78 years), both males. During the tests, brachium blood pressure (BP) was recorded.<br/><br>
During the cooling, BP increased in both subjects (young from 95/69 to 132/75 mmHg, old from 125/68 to 176/101 mmHg), the latter exhibiting a prominent rise in diastolic values after cooling. HRV parameters increased in both subjects during the cold exposure being modest in the younger subject as compared to the older one. Also, recovery from the cold in terms of HRV was faster in the younger subject. The present preliminary observations indicate that older age is coupled with altered HRV response to a mild whole‐body skin cooling.},
  author       = {Alametsä, Jarmo and Kuklane, Kalev and Smolander, Juhani and Vanggaard, Leif and Halder, Amitava and Lundgren Kownacki, Karin and Gao, Chuansi and Viik, Jari},
  issn         = {1798-0798},
  keyword      = {ECG heart rate variability elderly thermal balance mild whole‐body cooling blood pressure},
  language     = {eng},
  number       = {2-3},
  pages        = {57--64},
  series       = {Finnish Journal of eHealth and eWelfare},
  title        = {Age‐related circulatory responses to whole body cooling: observations by heart rate variability},
  volume       = {7},
  year         = {2015},
}