Relationship between sedentary behaviour, physical activity, muscle quality and body composition in healthy older adults

Sebastien Francois Martin Chastin, Eduardo Ferriolli, Nathan A. Stephens, Ken C.H. Fearon, Carolyn Greig

Research output: Contribution to journalArticle

Abstract

SIR—Sedentary behaviour (SB), defined as time spent sitting or lying, has been shown to be a major modifiable risk factor for chronic disease, disablement and frailty [1] independently physical activity levels (PA) [2, 3]. Time spent sitting or lying affects muscle physiology [4], is thought to accelerate sarcopenia [5], and to be a determinant driver of the obesity epidemic [6]. These two effects of SB: obesity and low muscle strength appear to potentiate each other to increase risk of disablement and frailty in older adults [7].
Original languageEnglish
Pages (from-to)111-114
Number of pages4
JournalAge and Ageing
Volume41
Issue number1
DOIs
Publication statusPublished - Jan 2012

Keywords

  • sedentary behaviour
  • physical activity
  • healthy living

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