Interventions with potential to reduce sedentary time in adults: systematic review and meta-analysis

Martin, Anne; Fitzsimons, Claire; Jepson, Ruth; Saunders, David H.; Ploeg, Hidde P. van der; Teixeira, Pedro J.; Gray, Cindy M.; Mutrie, Nanette

doi:10.1136/bjsports-2014-094524

Cited by 270 publications

(236 citation statements)

References 79 publications

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“…Therefore, reducing the sitting time may improve glycaemic control and insulin sensitivity in type 2 diabetes. Strategies to reduce sitting time are generally considered to be less demanding than structured exercise programmes and hence are more likely to have long-term compliance [28]. In this study, we observed that the Sit Less regimen improved insulin sensitivity, mean 24 h glucose levels, 24 h glucose excursions, duration of hyperglycaemia (blood glucose ≥10 mmol/l) and fasting triacylglycerol levels.…”

Section: Discussionsupporting

confidence: 57%

Breaking sitting with light activities vs structured exercise: a randomised crossover study demonstrating benefits for glycaemic control and insulin sensitivity in type 2 diabetes

et al. 2016

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Aims/hypothesis We aimed to examine the effects of breaking sitting with standing and light-intensity walking vs an energy-matched bout of structured exercise on 24 h glucose levels and insulin resistance in patients with type 2 diabetes. Methods In a randomised crossover study, 19 patients with type 2 diabetes (13 men/6 women, 63 ± 9 years old) who were not using insulin each followed three regimens under free-living conditions, each lasting 4 days: (1) Sitting: 4415 steps/day with 14 h sitting/day; (2) Exercise: 4823 steps/day with 1.1 h/day of sitting replaced by moderate-to vigorous-intensity cycling (at an intensity of 5.9 metabolic equivalents [METs]); and (3) Sit Less: 17,502 steps/day with 4.7 h/day of sitting replaced by standing and light-intensity walking (an additional 2.5 h and 2.2 h, respectively, compared with the hours spent doing these activities in the Sitting regimen). Blocked randomisation was performed using a block size of six regimen orders using sealed, non-translucent envelopes. Individuals who assessed the outcomes were blinded to group assignment. Meals were standardised during each intervention. Physical activity and glucose levels were assessed for 24 h/day by accelerometry (activPAL) and a glucose monitor (iPro2), respectively. The incremental AUC (iAUC) for 24 h glucose (primary outcome) and insulin resistance (HOMA2-IR) were assessed on days 4 and 5, respectively. Results The iAUC for 24 h glucose (mean ± SEM) was significantly lower during the Sit Less intervention than in Sitting (1263 ± 189 min × mmol/l vs 1974 ± 324 min × mmol/l; p = 0.002), and was similar between Sit Less and Exercise (Exercise: 1383 ± 194 min × mmol/l; p = 0.499). Exercise failed to improve HOMA2-IR compared with Sitting (2.06 ± 0.28 vs 2.16 ± 0.26; p = 0.177). In contrast, Sit Less (1.89 ± 0.26) significantly reduced HOMA2-IR compared with Exercise (p = 0.015) as well as Sitting (p = 0.001). Conclusions/interpretation Breaking sitting with standing and light-intensity walking effectively improved 24 h glucose levels and improved insulin sensitivity in individuals with type 2 diabetes to a greater extent than structured exercise. Thus, our results suggest that breaking sitting with standing and light-intensity walking may be an alternative to structured exercise to promote glycaemic control in patients type 2 diabetes.

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Section: Discussionsupporting

confidence: 57%

Breaking sitting with light activities vs structured exercise: a randomised crossover study demonstrating benefits for glycaemic control and insulin sensitivity in type 2 diabetes

et al. 2016

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“…15 Nevertheless, effective interventions for individuals and groups within this cluster are scarce. 32 Only by improving the quality and consistency of theory-driven interventions, 39 combined with improvements in measurement and understanding will we begin to control and improve behaviour. Effective policy and intervention may seek control exposure to inactivity and sedentary behaviour.…”

Section: Discussionmentioning

confidence: 99%

“…31 Nevertheless, research surrounding effective intervention and policy to achieve this end is not well developed. 3,32 The latest evidence indicates that interventions aiming to increase MVPA, or combine increases in MVPA with reductions in sedentary behaviour are not effective for reducing sedentary time. 32 Better Public Health may hinge on our understanding of how these behaviours displace one…”

mentioning

confidence: 99%

Physical Activity and Sedentary Behavior Clustering: Segmentation to Optimize Active Lifestyles

Zwolinsky¹,

McKenna²,

Pringle³

et al. 2016

Journal of Physical Activity and Health

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“…Sitting time is associated with adverse health conditions such as type 2 diabetes (Grøntved and Hu 2011;Hu et al 2003), cardiovascular disease (Kim et al 2013;Dunstan, Thorp, and Healy 2011), cancer (Gierach et al 2009) and obesity (Hu et al 2003). Sedentary time, of which sitting is a large part, has been shown to have a negative effect on health independent of physical activity (Proper et al 2011;Martin et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Physical activity strategies in the workplace are recommended to adopt a long-term 'ecological' model to account for individual, organisational and environmental factors (Pronk and Kottke 2009). 'Sit less' initiatives also require attentiveness to ecological factors but few studies have examined such initiatives independent of broader PA interventions (Martin et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Using organisational cultural theory to understand workplace interventions to reduce sedentary time

Such

Mutrie

2016

International Journal of Health Promotion and Education

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Interventions with potential to reduce sedentary time in adults: systematic review and meta-analysis

Cited by 270 publications

References 79 publications

Breaking sitting with light activities vs structured exercise: a randomised crossover study demonstrating benefits for glycaemic control and insulin sensitivity in type 2 diabetes

Breaking sitting with light activities vs structured exercise: a randomised crossover study demonstrating benefits for glycaemic control and insulin sensitivity in type 2 diabetes

Physical Activity and Sedentary Behavior Clustering: Segmentation to Optimize Active Lifestyles

Using organisational cultural theory to understand workplace interventions to reduce sedentary time

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