Objectively-Assessed Patterns and Reported Domains of Sedentary Behavior Among Japanese Older Adults

Ai Shibata, Koichiro Oka, Kaori Ishii, Rina Miyawaki, Shigeru Inoue, Takemi Sugiyama, Neville Owen

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Abstract

BACKGROUND: Prolonged periods of sitting time can be adversely associated with older adults' well-being and functional capacities. Understanding patterns and contexts of sedentary behaviors (SB) can inform approaches to prevention. This study examined Japanese older adults' objectively-assessed patterns and reported domains of SB and their interrelationships. METHODS: Participants (n = 297; aged 65-84 years) of this cross-sectional study wore an accelerometer for 7 days and completed a survey. Five measures related to SB patterns were identified from the accelerometer data. SB from six domains, socio-demographics, and chronic conditions were identified from the survey data. Relative contributions of six domains to objectively-measured prolonged sedentary time (≥30 minutes) and the number of breaks were examined in a series of multivariate linear regressions. Covariates were socio-demographics, chronic conditions, and accelerometer wear time. RESULTS: On average, participants spent 8.8 hours a day sedentary (58% of accelerometer wear time), with 7.6 breaks per sedentary hour, and 3.7 hours a day through prolonged sedentary bouts (4.4 time/day). The proportions of time in the SB domains were 9.4% for car, 4.0% for public transport, 6.1% for work, 45.5% for television (TV) viewing, 9.8% for computer use, and 25.1% for other leisure. Domains of SB that contributed significantly to longer sedentary time through prolonged bouts were TV viewing and computer use. TV viewing was also associated with a lesser number of breaks. CONCLUSIONS: For Japanese older adults, initiatives to address SB could focus on breaking-up prolonged periods of SB by encouraging more frequent breaks, especially during TV viewing.

Original languageEnglish
Pages (from-to)334-339
Number of pages6
JournalJournal of epidemiology
Volume29
Issue number9
DOIs
Publication statusPublished - 2019 Sep 5

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Television
Demography
Leisure Activities
Linear Models
Cross-Sectional Studies
Surveys and Questionnaires

Keywords

  • accelerometer
  • breaks
  • elderly
  • prolonged sitting

ASJC Scopus subject areas

  • Epidemiology

Cite this

Objectively-Assessed Patterns and Reported Domains of Sedentary Behavior Among Japanese Older Adults. / Shibata, Ai; Oka, Koichiro; Ishii, Kaori; Miyawaki, Rina; Inoue, Shigeru; Sugiyama, Takemi; Owen, Neville.

In: Journal of epidemiology, Vol. 29, No. 9, 05.09.2019, p. 334-339.

Research output: Contribution to journalArticle

Shibata, Ai ; Oka, Koichiro ; Ishii, Kaori ; Miyawaki, Rina ; Inoue, Shigeru ; Sugiyama, Takemi ; Owen, Neville. / Objectively-Assessed Patterns and Reported Domains of Sedentary Behavior Among Japanese Older Adults. In: Journal of epidemiology. 2019 ; Vol. 29, No. 9. pp. 334-339.
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