RCT Computer-tailored Intervention on Workplace Sitting

Not Applicable

Completed

• Conditions: Sedentary Lifestyle
• Interventions: Behavioral: generic advice; Behavioral: Start to stand

• Registration Number: NCT02672215
• Lead Sponsor: University Ghent

Brief Summary

A theory-driven, web-based, computer-tailored advice to influence sitting at work was developed. The study investigated the effects of this computer-tailored intervention to influence workplace sitting on behavioural measures.

Detailed Description

The study investigated the effects of the theory-driven, web-based, computer-tailored intervention to influence workplace sitting on objectively measured sitting time, standing time and breaks from sitting, as well as self-reported context-specific sitting. The computer-tailored advice was compared to a generic advice and a 'no-advice' control at 1-month and 3-months follow-up. The 'tailored' group received a web-based computer-tailored intervention including personalized feedback and tips on how to reduce and/or interrupt workplace sitting. The 'generic' group received a web-based intervention containing generic information and tips to reduce and/or interrupt workplace sitting. The control group was a waitlist control condition and received the generic intervention after completing all measurements. Participants were recruited from a convenience sample of two companies (university and environmental agency) in Flanders (i.e. northern Dutch-speaking part of Belgium), mainly employing desk-based workers, having more than 100 staff members and each having at least three different worksite locations.

Study Timeline

• Study Start: 2014-09-30
• Primary Completion: 2015-03-31
• Study First Submitted: 2016-01-20
• Study First Submitted QC: 2016-01-31
• Study First Posted: 2016-02-03
• Study Completion: 2017-10-31
• Status Verified: 2021-12
• Last Update Submitted: 2021-12-03
• Last Update Posted: 2021-12-06

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 1061

Inclusion Criteria

• being employed

Exclusion Criteria

• not being able to stand

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: FACTORIAL

Arm && Interventions

Group	Intervention	Description
generic group	generic advice	Received a web-based intervention containing generic information and tips to reduce and/or interrupt workplace sitting.
tailored group	Start to stand	Received a web-based computer-tailored intervention including personalized feedback and tips on how to reduce and/or interrupt workplace sitting.

Primary Outcome Measures

Name	Time	Method
standing time	one week	objectively measured standing time with ActivPAL
sitting time	one week	objectively measured sitting time with ActivPAL
self-reported context-specific sitting time	one week	self-reported context-specific sitting time with WSQ questionnaire
breaks from sitting	one week	objectively measured breaks from sitting with ActivPAL

Secondary Outcome Measures

Name	Time	Method
psychosocial correlates of sitting	one week	psychosocial correlates of sitting with questionnaire