NCT05790837

Workplace Intervention to Reduce Sitting Time: a Randomized Clinical Trial.

Workplace Intervention to Reduce Sitting Time, Decrease Musculoskeletal Symptoms, and Improve Cardiometabolic Markers in Sedentary Office Workers: a Randomized Clinical Trial.

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 106 (actual)
• Sponsor: Universidad del Desarrollo · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

The goal of this randomized clinical trial is to determine the effect of the computer prompt to break sitting time in office workers. The main question is: What is the effect of the computer prompt "Stand Up for Your Health®" plus education on sitting time, musculoskeletal symptoms, cardiometabolic markers, and physical activity in office workers compared with only education? In addition, to determine the level of adherence to the intervention program by identifying barriers and facilitators referred by the participants. The participants will be divided into two groups, the experimental and the control group. The participants in the experimental group will use the computer prompt on their desktop and receive information about sedentary behaviour, and the control group will receive only information. All participants will wear accelerometers for one week. The musculoskeletal symptoms and cardiometabolic markers will be measured at baseline, 3rd and 6th month.

Detailed description

Sedentary behaviour and physical inactivity are risk factors for noncommunicable diseases related to the work environment. The accumulation of sitting time during the workday is related to musculoskeletal symptoms and worse cardiometabolic indicators. The purpose of this study is to determine the effect of the "Stand up for your Health®" computer app on sitting time, musculoskeletal symptoms, cardiometabolic markers, and physical activity in office workers. Also, to determine the adherence to the intervention program by identifying barriers and facilitators referred by the participants. In this 2-arm randomized controlled trial, both groups will be recruited from educational establishments and will be measured at baseline, 3rd, and 6th months. The experimental group will be implementing the "Stand Up for Your Health®" computer app plus educational information, while the control group will only receive educational information. The same measurements will be completed in both groups during a 6 months follow-up period: sedentary behaviour using the Actigraph accelerometers and the Occupational Sitting and Physical Activity Questionnaire (OSPAQ); musculoskeletal symptoms will be assessed by a pressure pain algometer and the Standardized Nordic Questionnaire of Perception of musculoskeletal Symptoms; and cardiometabolic markers and anthropometric measurements will also be assessed according to protocol.

Conditions

• Sedentary Behavior
• Office Workers

Interventions

Type	Name	Description
BEHAVIORAL	Computer prompt "Stand up for your Health®"	The intervention group consists on the implementation of a desktop application "Stand up for your Health®" computer prompt following the model proposed by the Guide to Physical Activity at Work (34). This app works by showing reminders and asking users to pause their work activity and take an active break. Pauses can be customized and programmed according to the user's preference, allowing control of the time of each pause, between pauses, and the possibility of delaying or interrupting the pause. In this study, the "Stand up for your Health®" app will be scheduled to appear every 60 minutes on the workers' computers and each break will last for 2 minutes. During this resting period, the worker will see a notice or reminder on their screen with a countdown clock. The application allows you to postpone or interrupt directions.

Timeline

• Start date: 2023-09-16
• Primary completion: 2024-06-19
• Completion: 2024-06-28
• First posted: 2023-03-30
• Last updated: 2025-05-15

Locations

1 site across 1 country: Chile