Television viewing time is associated with overweight/obesity among older adults, independent of meeting physical activity and health guidelines

Shigeru Inoue, Takemi Sugiyama, Tomoko Takamiya, Koichiro Oka, Neville Owen, Teruichi Shimomitsu

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

Background: Previous studies have shown associations of sedentary behavior with cardiovascular risk, independent of moderate-to-vigorous physical activity (MVPA). However, few studies have focused on older adults. This study examined the joint associations of television (TV) viewing time and MVPA with overweight/ obesity among Japanese older adults. Methods: A population-based, cross-sectional mail survey was used to collect self-reported height, weight, time spent in TV viewing, and MVPA from 1806 older adults (age: 65-74 years, men: 51.1%). Participants were classified into 4 categories according to TV viewing time (dichotomized into high and low around the median) and MVPA level (dichotomized into sufficient and insufficient by the physical activity guideline level of ≥150 minutes/week). Odds ratios (ORs) for overweight/obesity (body mass index ≥25 kg/m 2) were calculated according to the 4 TV/MVPA categories, adjusting for potential confounders. Results: Of all participants, 20.1% were overweight/obese. The median TV viewing time (25th, 75th percentile) was 840 (420, 1400) minutes/week. As compared with the reference category (high TV/insufficient MVPA), the adjusted ORs (95% CI) of overweight/obesity were 0.93 (0.65, 1.34) for high TV/sufficient MVPA, 0.58 (0.37, 0.90) for low TV/insufficient MVPA, and 0.67 (0.47, 0.97) for low TV/sufficient MVPA. Conclusions: In this sample of older adults, spending less time watching TV, a predominant sedentary behavior, was associated with lower risk of being overweight or obese, independent of meeting physical activity guidelines. Further studies using prospective and/or intervention designs are warranted to confirm the presently observed effects of sedentary behavior, independent of physical activity, on the health of older adults.

Original languageEnglish
Pages (from-to)50-56
Number of pages7
JournalJournal of epidemiology
Volume22
Issue number1
DOIs
Publication statusPublished - 2012 Jan 12

Keywords

  • Cardiovascular risk factor
  • Obesity
  • Sedentary behavior

ASJC Scopus subject areas

  • Epidemiology

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