Background: Emerging evidence shows sedentary behaviour may be associated with mental health outcomes. Yet, the strength of the evidence linking sedentary behaviour and stress is still unclear. This study aimed to synthesise evidence regarding associations between time spent in sedentary behaviour and stress in adults. Methods: A systematic search was conducted (January 1990 – September 2019). Following PRISMA guidelines, an evaluation of methodological quality, and best-evidence synthesis of associations between time in sedentary behaviour (including sitting time, TV viewing, computer use) and stress were presented. Twenty-six studies reporting on data from n=72,795 people (age 18-98y, 62.7% women) were included. Results: Across the studies (n=2 strong-, n=10 moderate- and n=14 weak-quality), there was insufficient evidence that overall time spent in sedentary behaviour and sitting time were associated with stress, particularly when using self-report measures of sedentary behaviour or stress. There was strong evidence of no association between TV viewing, or computer use and stress. Amongst studies using objective measures of sedentary behaviour and/or stress there was also strong evidence of no association. Conclusion: Although previous research suggested sedentary behaviour may be linked to mental health outcomes such as depression and anxiety, the evidence for an association between various types of sedentary behaviour and stress is limited in quality, and associations are either inconsistent or null. High-quality longitudinal/interventional research is required to confirm findings and determine the direction of associations between different contexts (i.e. purpose) and domains (i.e. leisure, occupational, transport) of sedentary behaviour and stress.
Keywords: sedentary behaviour; sitting time; television viewing; stress; mental health; adults

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Posted 04 Oct, 2019
On 18 Nov, 2019
On 30 Sep, 2019
On 27 Sep, 2019
On 20 Sep, 2019
On 19 Sep, 2019
On 19 Sep, 2019
On 25 Aug, 2019
Received 20 Aug, 2019
Received 20 Aug, 2019
On 06 Aug, 2019
On 05 Aug, 2019
Received 01 Aug, 2019
On 22 Jul, 2019
Invitations sent on 20 Jul, 2019
On 17 Jun, 2019
On 06 Jun, 2019
On 06 Jun, 2019
On 04 Jun, 2019
Posted 04 Oct, 2019
On 18 Nov, 2019
On 30 Sep, 2019
On 27 Sep, 2019
On 20 Sep, 2019
On 19 Sep, 2019
On 19 Sep, 2019
On 25 Aug, 2019
Received 20 Aug, 2019
Received 20 Aug, 2019
On 06 Aug, 2019
On 05 Aug, 2019
Received 01 Aug, 2019
On 22 Jul, 2019
Invitations sent on 20 Jul, 2019
On 17 Jun, 2019
On 06 Jun, 2019
On 06 Jun, 2019
On 04 Jun, 2019
Background: Emerging evidence shows sedentary behaviour may be associated with mental health outcomes. Yet, the strength of the evidence linking sedentary behaviour and stress is still unclear. This study aimed to synthesise evidence regarding associations between time spent in sedentary behaviour and stress in adults. Methods: A systematic search was conducted (January 1990 – September 2019). Following PRISMA guidelines, an evaluation of methodological quality, and best-evidence synthesis of associations between time in sedentary behaviour (including sitting time, TV viewing, computer use) and stress were presented. Twenty-six studies reporting on data from n=72,795 people (age 18-98y, 62.7% women) were included. Results: Across the studies (n=2 strong-, n=10 moderate- and n=14 weak-quality), there was insufficient evidence that overall time spent in sedentary behaviour and sitting time were associated with stress, particularly when using self-report measures of sedentary behaviour or stress. There was strong evidence of no association between TV viewing, or computer use and stress. Amongst studies using objective measures of sedentary behaviour and/or stress there was also strong evidence of no association. Conclusion: Although previous research suggested sedentary behaviour may be linked to mental health outcomes such as depression and anxiety, the evidence for an association between various types of sedentary behaviour and stress is limited in quality, and associations are either inconsistent or null. High-quality longitudinal/interventional research is required to confirm findings and determine the direction of associations between different contexts (i.e. purpose) and domains (i.e. leisure, occupational, transport) of sedentary behaviour and stress.
Keywords: sedentary behaviour; sitting time; television viewing; stress; mental health; adults

Figure 1

Figure 2
This is a list of supplementary files associated with this preprint. Click to download.
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