Measurement of Adults' Sedentary Time in Population-Based Studies

Healy, Geneviève N.; Clark, Bronwyn; Winkler, Elisabeth; Gardiner, Paul A.; Brown, Wendy J.; Matthews, Charles E.

doi:10.1016/j.amepre.2011.05.005

Cited by 529 publications

(566 citation statements)

References 69 publications

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“…While the ST question was similar to that included in the validated International Physical Activity Questionnaire (Craig et al, 2003), single item questions typically underestimate ST (Healy et al, 2011) so estimates of ST are likely to be low. If any underestimation is consistent over time, then changes in ST are likely to be unaffected; however, precise effects of any error and bias cannot be estimated.…”

Section: Strengths and Limitationsmentioning

confidence: 99%

Nine year changes in sitting time in young and mid-aged Australian women: Findings from the Australian Longitudinal Study for Women's Health

Clark

Peeters

Gomersall

et al. 2014

Preventive Medicine

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Word count abstract: 200 Word count main text: 2 769 Highlights• Over nine years sitting time (ST) decreased in young women and increased in midaged women.• Decreased ST was associated with having a baby, beginning work and decreased income in young women.• Decreased ST was associated with retirement and decreased income in mid-aged women. 2• Increased ST was associated with returning to study and job loss in young women.• Increased ST was associated with changes at work in mid-aged women. Results Against a background of complex changes there was an overall decrease in ST in young women(median change -0.48 hrs/day, interquartile range [IQR] =-2.54, 1.50) and an increase in ST in mid-aged women (median change 0.43 hrs/day; IQR =-1.29, 2.0) over nine years. In young women, returning to study and job loss were associated with increased ST, while having a baby, beginning work and decreased income were associated with decreased ST. In mid-aged women, changes at work were associated with increased ST, while retiring and decreased income were associated with decreased ST. ConclusionsST changed over nine years in young and mid-aged Australian women. The life events they experienced, particularly events related to work and family, were associated with these changes.

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Section: Strengths and Limitationsmentioning

confidence: 99%

Nine year changes in sitting time in young and mid-aged Australian women: Findings from the Australian Longitudinal Study for Women's Health

Clark

Peeters

Gomersall

et al. 2014

Preventive Medicine

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“…However, they cannot distinguish between sitting and standing still. [13][14][15] In order to report accurately on the relationship between occupational sitting patterns and health outcomes, objective measures that measure postural change are needed.…”

Section: Introductionmentioning

confidence: 99%

Desk-Based Occupational Sitting Patterns

Ryde

Brown

Peeters

et al. 2013

American Journal of Preventive Medicine

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Background: Prolonged, uninterrupted sitting time is associated with poor health outcomes.As most sitting time occurs at work, accurate, objective measurement of occupational sitting patterns is required to fully understand its effects on employee health. Purpose:The purpose of this study was to examine associations between desk-based sitting patterns, waist circumference (WC) and body mass index (BMI).Methods: Participants were full-time, office-based employees (N=105; mean age 40.9±11.5 years; BMI 26.1±3.9, 65% women). Sitting patterns (total desk-based sitting time and number of times employees got up from their desk) were assessed for five days using an objective measure of desk-based sitting, the sitting pad. WC, height and weight were measured, and BMI calculated (weight/height 2 ). Associations between sitting patterns, WC and BMI were tested using logistic regression models. Data were collected and analysed between 2011/12.Results: Those with high sitting time at their desk were 2.7 times (95% CI: 1.3 to 6.3) more likely to have WC ≥94 cm (men) or ≥80cm (women), and 9.0 times (95% CI: 1.9 to 41.9) more likely to have BMI ≥30 than those with lower sitting time. There were no significant associations between the number of times employees got up from sitting at their desk and WC or BMI. Conclusion:High desk-based sitting time was associated with increased likelihood of weight related health outcomes whereas frequency of getting up from sitting at the desk was not.3

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“…behavioural trends and assessing emerging relationships between sitting and health, they may not be sufficiently sensitive for detecting changes in sitting time 3) .…”

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confidence: 99%