Heart rate variability, but not heart rate, is associated with handgrip strength and mortality in older Africans at very low cardiovascular risk: A population-based study

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Heart rate variability, but not heart rate, is associated with handgrip strength and mortality in older Africans at very low cardiovascular risk: A population-based study

Type: Article
Title: Heart rate variability, but not heart rate, is associated with handgrip strength and mortality in older Africans at very low cardiovascular risk: A population-based study
Author: Koopman Jacob J.E.; Bodegom David van; Maan Arie C.; Li Zhao; Ziem Juventus B.; Westendorp Rudi G.J.; Jukema J.Wouter
Start Page: 559
End Page: 561
Publisher: Elsevier
Issue Date: 2015
Keywords: Heart rate
Heart rate variability
Handgrip strength
Mortality
Ageing
Abstract: A high heart rate and a low heart rate variability at rest are established predictors of various forms of functional impairment, morbidity, and mortality [1–6]. Two explanations can be given for these associations. On one hand, a high heart rate and a low heart rate variability are thought to reflect dysfunction of the flexible autonomic regulation of the heart rate in particular and of the body's functioning in general that arises during ageing [3–5]. On the other hand, a high heart rate and a low heart rate variability are brought about by cardiovascular risk factors, such as obesity, hyperlipidaemia, diabetes, hypertension, and physical inactivity [2,3,7–9]. Since research on heart rate and heart rate variability has almost exclusively been conducted in western populations with an affluent sedentary lifestyle and high prevalences of these risk factors, it has been difficult to determine whether or not heart rate and heart rate variability are associated with functional impairment, morbidity, and mortality independently of cardiovascular risk factors.
Series/Report no.: International Journal of Cardiology;187 (2015) 559–561
Handle: http://hdl.handle.net/1887/50953
 

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