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Related Concept Videos

Lifestyle Factors and Health01:20

Lifestyle Factors and Health

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Lifestyle factors play a critical role in maintaining overall health and preventing chronic diseases. Key elements, such as regular physical activity, a nutritious diet, and abstinence from smoking, can significantly enhance physical, mental, and emotional well-being while reducing the risk of several life-threatening conditions.
Benefits of Physical Activity
Physical activity, whether through structured exercise or casual activities like walking, biking, or dancing, is a cornerstone of a...
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Objective Sedentary Time, Moderate-to-Vigorous Physical Activity, and Physical Capability in a British Cohort.

Victoria L Keevil1, Andrew J M Cooper, Katrien Wijndaele

  • 11Department of Public Health and Primary Care, Strangeways Research Laboratory, University of Cambridge, Cambridge, UNITED KINGDOM; and 2MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge, Addenbrookes Biomedical Campus, Cambridge, UNITED KINGDOM.

Medicine and Science in Sports and Exercise
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Summary

Higher moderate-to-vigorous physical activity (MVPA) is linked to better physical function. Sedentary time (ST) alone did not show independent associations with physical capability in older adults.

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Area of Science:

  • Gerontology
  • Public Health
  • Exercise Physiology

Background:

  • Sedentary time (ST) is a potential independent risk factor for adverse health outcomes.
  • Limited research has investigated the association between ST and physical functional health, independent of moderate-to-vigorous physical activity (MVPA).

Purpose of the Study:

  • To examine the associations between sedentary time (ST) and physical functional health.
  • To determine if these associations are independent of moderate-to-vigorous physical activity (MVPA).

Main Methods:

  • Community-based study of 8623 men and women (48-92 years) from the European Prospective Investigation of Cancer-Norfolk.
  • Objective measurements of physical capability: grip strength, usual walking speed (UWS), and timed chair stand speed (TCSS).
  • Accelerometer data from 4051 participants to estimate MVPA and ST; linear regression and fractional polynomial models were used for analysis.

Main Results:

  • Higher MVPA was significantly associated with greater grip strength, faster UWS, and faster TCSS in both men and women.
  • These associations between MVPA and physical capability remained significant after adjusting for ST.
  • While higher ST showed some association with lower physical capability, this effect was attenuated when MVPA was considered; no significant MVPA-ST interactions were found.

Conclusions:

  • Increased time spent in moderate-to-vigorous physical activity (MVPA) is positively associated with enhanced physical capability in older adults.
  • Sedentary time (ST) does not appear to have an independent association with physical functional health when MVPA is taken into account.