MedDataX Logo

An Intervention to Reduce Sitting Time at Work: Effects on Metabolic Health and Inactivity

NCT ID: NCT02609438

Last Updated: 2015-11-20

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

49 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-03-31

Study Completion Date

2015-06-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to determine whether varying the frequency and length of activity breaks during the workday will differentially impact sedentary behavior and health outcomes. Participants will be randomly assigned to take short, frequent breaks (i.e., 1 minute every half hour) or longer, planned breaks (i.e., two 15-minute walks) from sitting during the workday. They will be instructed to follow the assigned protocols for an 8-week intervention and the effects of their participation on sedentary behavior and a variety of health outcomes will be assessed. The investigators anticipate participants in both intervention arms will demonstrate significant reductions in daily sitting time, bit do not have an a priori hypothesis regarding the relative effectiveness of each approach.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The purpose of this study is to determine whether varying the frequency and length of activity breaks during the workday will differentially impact sedentary behavior and health outcomes. Women aged 25-50 who work full-time in sedentary jobs and participate in less than 60 minutes of overall physical activity per week will be recruited. At the beginning of the study participants will visit the laboratory to complete baseline health assessments and meet with a research assistant to outline their plan for reducing sitting time at work. At this time they will be randomly assigned to one of two groups: 1) Group A will be asked to take two 15-minute walks during each workday, or 2) Group B will be asked to stand up and move around for 1-2 minutes every half hour throughout the workday. The total duration of this program will be eight weeks. During this time participants will be asked to keep a brief daily log of their activity breaks during the workday. At the end of the 8-week program participants will return to the laboratory to repeat the health assessments.

ASSESSMENTS:

All participants will complete the following tests and procedures:

* Metabolic blood panel. Blood will be drawn from a quick finger stick to assess total cholesterol, triglycerides, LDL, HDL, and fasting glucose.
* DEXA scan. Participants will lie down on a body scanner for about 10 minutes to assess body composition.
* Body measurements. A trained research assistant will measure height, weight, and waist circumference.
* Blood pressure. A trained research assistant will measure blood pressure using an automated blood pressure cuff.

In addition, participants will complete the following assessments outside of the laboratory:

* Questionnaires: Participants will be asked to complete a series of questionnaires. This should take 15-20 minutes.
* Accelerometer: Participants will be asked to wear a motion sensor for a total of 21 days (three 7-day periods). This small apparatus is worn around the waist during the day. Participants will complete a log indicating when they were wearing the accelerometer each day.
* Food diary: Participants will be asked to record their food intake for a total of 9 days (three 3-day periods).

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Sedentary Lifestyle

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Short breaks

Participants instructed to stand/move for 1-2 minutes every half hour throughout the workday

Group Type ACTIVE_COMPARATOR

Short breaks

Intervention Type BEHAVIORAL

Following baseline testing, participants will attend a 30-minute individual orientation session, during which they will complete a planning worksheet with a research assistant. They will identify specific strategies they will use to accomplish the pre-specified goal (i.e., to take a 1-minute active break every 30 minutes during the workday). They will also identify potential barriers they will face and devise strategies for overcoming them. The intervention will officially start the Monday after the orientation session and will last for 8 weeks. Participants will receive a weekly email containing tips related to reducing sitting time at work. All participants will complete daily activity logs indicating the time and duration of all breaks from sitting across the 8-week intervention.

Long breaks

Participants instructed to take two 15-minute activity breaks during each workday

Group Type ACTIVE_COMPARATOR

Long breaks

Intervention Type BEHAVIORAL

Following baseline testing, participants will attend a 30-minute individual orientation session, during which they will complete a planning worksheet with a research assistant. They will identify specific strategies they will use to accomplish the pre-specified goal (i.e., to take two 15-minute activity breaks during each workday). They will also identify potential barriers they will face and devise strategies for overcoming them. The intervention will officially start the Monday after the orientation session and will last for 8 weeks. Participants will receive a weekly email containing tips related to reducing sitting time at work. All participants will complete daily activity logs indicating the time and duration of all breaks from sitting across the 8-week intervention.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Short breaks

Following baseline testing, participants will attend a 30-minute individual orientation session, during which they will complete a planning worksheet with a research assistant. They will identify specific strategies they will use to accomplish the pre-specified goal (i.e., to take a 1-minute active break every 30 minutes during the workday). They will also identify potential barriers they will face and devise strategies for overcoming them. The intervention will officially start the Monday after the orientation session and will last for 8 weeks. Participants will receive a weekly email containing tips related to reducing sitting time at work. All participants will complete daily activity logs indicating the time and duration of all breaks from sitting across the 8-week intervention.

Intervention Type BEHAVIORAL

Long breaks

Following baseline testing, participants will attend a 30-minute individual orientation session, during which they will complete a planning worksheet with a research assistant. They will identify specific strategies they will use to accomplish the pre-specified goal (i.e., to take two 15-minute activity breaks during each workday). They will also identify potential barriers they will face and devise strategies for overcoming them. The intervention will officially start the Monday after the orientation session and will last for 8 weeks. Participants will receive a weekly email containing tips related to reducing sitting time at work. All participants will complete daily activity logs indicating the time and duration of all breaks from sitting across the 8-week intervention.

Intervention Type BEHAVIORAL

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Up4Health - short breaks Up4Health - long breaks

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

1. Work at least 35 hours per week
2. Spend at least 80% of working hours sitting (self-reported)
3. Engage in less than 60 minutes per week of leisure-time exercise (self-reported)
4. Not pregnant or planning to become pregnant in the next 3 months
5. Not currently trying to change weight
6. Speak English
7. Able to attend assessments
8. Willing to wear accelerometer
9. No anticipated significant conflicts during 8-week intervention

Exclusion Criteria

1. Male
2. Working less than 35 hours per week
3. Spend \>25% of working hours standing or active
4. Engage in more than 60 minutes per week of leisure-time exercise
5. Pregnant
6. Actively dieting or attempting to change weight
Minimum Eligible Age

25 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Kansas State University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Emily Mailey

Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Emily L Mailey, PhD

Role: PRINCIPAL_INVESTIGATOR

Kansas State University

References

Explore related publications, articles, or registry entries linked to this study.

Casey K, Mailey EL, Rosenkranz RR, Swank A, Ablah E, Rosenkranz SK. Does dietary intake change during an intervention to reduce sedentary behavior and cardiovascular disease risk? A randomized comparative effectiveness trial. BMC Nutr. 2018 Apr 2;4:16. doi: 10.1186/s40795-018-0223-1. eCollection 2018.

Reference Type DERIVED
PMID: 32153880 (View on PubMed)

Mailey EL, Rosenkranz SK, Ablah E, Swank A, Casey K. Effects of an Intervention to Reduce Sitting at Work on Arousal, Fatigue, and Mood Among Sedentary Female Employees: A Parallel-Group Randomized Trial. J Occup Environ Med. 2017 Dec;59(12):1166-1171. doi: 10.1097/JOM.0000000000001131.

Reference Type DERIVED
PMID: 28816735 (View on PubMed)

Mailey EL, Rosenkranz SK, Casey K, Swank A. Comparing the effects of two different break strategies on occupational sedentary behavior in a real world setting: A randomized trial. Prev Med Rep. 2016 Aug 9;4:423-8. doi: 10.1016/j.pmedr.2016.08.010. eCollection 2016 Dec.

Reference Type DERIVED
PMID: 27583200 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

USRG-3046

Identifier Type: -

Identifier Source: org_study_id