Take a Stand! - an Intervention to Reduce Occupational Sitting Time

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

337 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-11-30

Study Completion Date

2014-06-30

Brief Summary

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The purpose of the study is to test an intervention aiming to reduce sitting time during work hours among office workers.

Expectations according to outcome measures: Sitting time reduced by 1 hour pr. day (primary). Number of prolonged periods reduced by 1 pr. day (primary). Number of breaks increased by 3 pr. day (primary). 20 % of participants report a reduction of musculoskeletal pain (secondary). A reduction in waist circumference of 1 cm (secondary). A reduction of 0.5 % in bodyfat (secondary).

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Detailed Description

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Background and aim: Sedentary behaviour has substantial impact on wellbeing and health, e.g. on the risk of cardiovascular disease and premature death. These associations seem to apply as well to people who carry out the recommended 30 minutes of physical activity per day. However, studies indicate that the harmful effects can be reduced through breaking prolonged periods of sitting by intervals of standing or walking.

In total 46 % of Danes are working in occupations which are primarily sedentary and the workplace is thus a relevant setting to intervene against sedentary behaviour.

The aim of the study is to test an intervention towards sitting time among office workers. The intervention will target both total sitting time, breaks from sitting and prolonged periods of sitting.

Design: Cluster-randomized control study led at four different workplaces in Denmark and Greenland. Each workplace should consist of four independent sections (clusters) of about 25 people. Those four sections are randomized to intervention or control. A cluster design is used because the intervention will target the workplace setting as a whole, thus individuals within the same office has to be randomized to the same arm of the intervention.

Participants: 400 adults with sedentary office-based work. Subjects should understand Danish and be without disabilities or diseases affecting their ability to stand or walk.

Intervention: Participating clusters are randomized to

1. Intervention: The intervention consists of four parts: Information, local adaptions, structural changes and individual support.
2. Control: The control group will receive the intervention after the last follow-up (about 3 months later).

Methods: Data on sedentary behaviour is collected objectively using ActiGraph. Waist circumference and body fat percentage is measured. Questionnaire data will be collected on background variables, physical activity level, workplace conditions and well-being.

Data will be collected at baseline, and after 1 and 3 months.

Analysis will be carried out following the intention-to-treat principle comparing the intervention and control group. We will use several outcomes and include baseline values as a covariate (ANCOVA). In addition we will use multilevel models to account for the hierarchical structure of data (workplace, cluster and participant).

Process evaluation will be conducted by the use of qualitative interviews and questionnaire data and concern both adoptions, implementation and sustainability of the intervention.

Conditions

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Sedentary Lifestyle

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Intervention group

Group Type EXPERIMENTAL

Intervention group

Intervention Type BEHAVIORAL

The intervention consists of four components, which as described below:

1. Information about sedentary behaviour and health: Delivered at the kick-off workshop, in a leaflet and the project website.
2. Local adaptation: Participants adapt the intervention to their personal and local environment setting individual and common goals. Local ambassadors are chosen and support from the management is emphasised.
3. Structural changes: Facilities for standing meetings, both formal and informal. Routes for walking meetings should be defined.
4. Individual support: At the kick-off workshop participants set individual goals. The individual can choose to receive e-mails and text messages (SMS)from the project. The individual receives a post-it block and a postcard to remind them of the project.

Intervention control

Control group

Group Type PLACEBO_COMPARATOR

Control group

Intervention Type BEHAVIORAL

The control group receives the intervention after the last follow-up, the exact time will be settled together with each workplace in the control group.

Interventions

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Intervention group

The intervention consists of four components, which as described below:

1. Information about sedentary behaviour and health: Delivered at the kick-off workshop, in a leaflet and the project website.
2. Local adaptation: Participants adapt the intervention to their personal and local environment setting individual and common goals. Local ambassadors are chosen and support from the management is emphasised.
3. Structural changes: Facilities for standing meetings, both formal and informal. Routes for walking meetings should be defined.
4. Individual support: At the kick-off workshop participants set individual goals. The individual can choose to receive e-mails and text messages (SMS)from the project. The individual receives a post-it block and a postcard to remind them of the project.

Intervention Type BEHAVIORAL

Control group

The control group receives the intervention after the last follow-up, the exact time will be settled together with each workplace in the control group.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

1. Workplaces should be:

* Office-based with sedentary workers
* Able to include four sections of about equal size (about 25 people) and which could be separated to minimize spill-over effects (e.g. four different addresses, buildings or floors).
* Have a management willing to collaborate about the project by participating at meetings and at kick-off.
* Should have at least some financial resources to make structural changes at the work place.
2. Individuals should be:

* Adults \>18 years
* Sedentary office-based work-
* Understanding of Danish
* Without sickness or disabilities affecting their ability to stand or walk
* Not pregnant
* Working more than 4 days a week (\>30 h)