NCT02609438

Brief Summary

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.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
49

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2014

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2014

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2015

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

November 16, 2015

Completed
4 days until next milestone

First Posted

Study publicly available on registry

November 20, 2015

Completed
Last Updated

November 20, 2015

Status Verified

November 1, 2015

Enrollment Period

1.3 years

First QC Date

November 16, 2015

Last Update Submit

November 17, 2015

Conditions

Sedentary Lifestyle

Keywords

worksiteinterventionsitting

Outcome Measures

Primary Outcomes (1)

  • Change in sedentary behavior during the workday

    Measured by GT3X accelerometer

    Baseline - week 8

Secondary Outcomes (16)

  • Change in weight

    Baseline - week 9

  • Change in blood pressure

    Baseline - week 9

  • Change in resting heart rate

    Baseline - week 9

  • Change in total cholesterol, HDL cholesterol, LDL cholesterol

    Baseline - week 9

  • Change in triglycerides

    Baseline - week 9

  • +11 more secondary outcomes

Study Arms (2)

Short breaks

ACTIVE COMPARATOR

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

Behavioral: Short breaks

Long breaks

ACTIVE COMPARATOR

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

Behavioral: Long breaks

Interventions

Short breaksBEHAVIORAL

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.

Also known as: Up4Health - short breaks
Short breaks
Long breaksBEHAVIORAL

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.

Also known as: Up4Health - long breaks
Long breaks

Eligibility Criteria

Age25 Years - 50 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

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

You may not qualify if:

  • Male
  • Working less than 35 hours per week
  • Spend \>25% of working hours standing or active
  • Engage in more than 60 minutes per week of leisure-time exercise
  • Pregnant
  • Actively dieting or attempting to change weight

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (3)

  • 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.

    PMID: 32153880DERIVED

  • 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.

    PMID: 28816735DERIVED

  • 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.

    PMID: 27583200DERIVED

MeSH Terms

Conditions

Sedentary Behavior

Condition Hierarchy (Ancestors)

Behavior

Study Officials

  • Emily L Mailey, PhD

    Kansas State University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

November 16, 2015

First Posted

November 20, 2015

Study Start

March 1, 2014

Primary Completion

June 1, 2015

Study Completion

June 1, 2015

Last Updated

November 20, 2015

Record last verified: 2015-11