Clinical trial NCT03468894: Breaking up Sitting With a Treadmill Desk in Office Workers
Official title: Breaking up Prolonged Sitting Time in Office Workers With Light-intensity Walking: A Pilot Randomized Controlled Trial
Study type: INTERVENTIONAL
Overall status: WITHDRAWN
Phase: NA
Conditions: Cardiovascular Risk Factor
Type2 Diabetes
Sedentary Lifestyle
Keywords: prolonged sitting
sedentary behaviour
physical activity
office workplace
Lead sponsor: University of Bedfordshire
Sponsor class: OTHER
First posted: 2018-03-19
Enrollment: 0
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: Pilot RCT
Primary purpose: PREVENTION

Brief summary: Sitting for long uninterrupted periods of time can increase risk of heart disease, diabetes and early death, even if you take part in the United Kingdom government guidelines for physical activity of 21/2 hours per week of exercise. Effective interventions to reduce the risk of these diseases are therefore needed. The aim of this study is to examine the effects of regularly breaking up sitting time with light intensity treadmill desk walking among office workers on health markers, sitting time and physical activity. If using a treadmill desk leads to benefits in these disease risk markers then this could be an effective strategy to improve employee health in the workplace.

Participants will be randomly assigned to the intervention group or the control group. After baseline activity and health measures, they will take part in the study for 4 weeks.

Intervention group: Participants will have a treadmill desk placed in their office or a nearby location and will be asked to walk while working on the treadmill desk continuously for 20 minutes at a self-selected slow pace each hour for a minimum of 6 hours per shift. There will be one treadmill desk between 2-3 people.

Control group: Participants will be asked to work as usual at their regular workstation with no changes in their physical activity and dietary habits.

Sitting time and physical activity will be measured at baseline and during the last week f the intervention. A range of health and psychological measures will be taken at baseline and post-intervention.


Eligibility criteria: Inclusion Criteria:

* adults aged 18-65 years who work for shifts lasting ≥ 6 h and spend ≥ 75% of this time sitting at their desk
* work a minimum of 3 days per week

Exclusion Criteria:

* the presence of any known blood borne disease
* self-reported diagnosed diabetes
* physical activity contraindications
* pregnancy
* any major injury or illness, tobacco use, or any other health issue that my limit the participant in carrying out the required activity bouts.
* any planned absence from their office for more than one week during the 4 week study period.

Primary outcomes:
measure: Change in Workplace sitting time
timeFrame: Baseline and week 4 of intervention
Secondary outcomes:
measure: Change in Workplace stepping
timeFrame: Baseline and week 4 of intervention
measure: Change in Daily sitting time
timeFrame: Baseline and week 4 of intervention
measure: Change in Daily physical activity
timeFrame: Baseline and week 4 of intervention
measure: Change in Sleep quality and quantity
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in Mental-wellbeing
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in body mass index (kg/m2)
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in waist circumference (cm)
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in blood pressure (mmHg)
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in blood glucose (mmol/L)
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in triglycerides (mmol/L)
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in high-density lipoprotein cholesterol (mmol/L)
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in positive and negative affect
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in self-efficacy
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in job performance
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in work engagement
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in musculoskeletal symptoms
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in presenteeism
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in quality of life
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in perceived stress
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
measure: Change in perceived vigor
timeFrame: Baseline and post-intervention (within 1 week after intervention ends)
Other outcomes:
Locations:
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