The independent roles of cardiorespiratory fitness and sedentary time on chronic conditions and Body Mass Index in older adults

J Sports Med Phys Fitness. 2015 Oct;55(10):1200-6. Epub 2014 Nov 20.

Abstract

Aim: The aim of this paper was to examine the independent influence of cardiorespiratory fitness and sedentary behavior on chronic disease incidence and body composition in older adults.

Methods: A sample of 292 community dwelling men and women (mean 69.3±8.1 years) underwent maximal treadmill testing and completed questionnaires relating to their leisure-time physical activity, sedentary time, and health.

Results: The average V O2 of the sample was approximately 21 ml.kg(-1).min(-1) with the average sedentary time being over 3 hours per day. Cardiorespiratory fitness was found to be a stronger predictor of number of chronic conditions and BMI than total physical activity and sedentary. Those with a higher cardiorespiratory fitness had fewer chronic conditions and a lower BMI. No such associations were seen for either total physical activity levels or sedentary time.

Conclusion: Cardiorespiratory fitness is a stronger predictor of health among older adults and further highlights the importance of promoting public health guidelines for cardiorespiratory fitness.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Body Composition
  • Body Mass Index*
  • Cardiovascular Physiological Phenomena*
  • Chronic Disease / epidemiology*
  • Cross-Sectional Studies
  • Exercise / physiology*
  • Exercise Test
  • Female
  • Humans
  • Incidence
  • Male
  • Middle Aged
  • Physical Fitness / physiology*
  • Prevalence
  • Sedentary Behavior*
  • Surveys and Questionnaires