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OpenTrials
Completed

NCT Number: NCT02544867

Optimizing Sedentary Behavior Interventions to Affect Acute Physiological Changes

An emerging body of epidemiological evidence suggests that various forms of sedentary behavior, including TV viewing, occupational sitting, and total daily sitting, may be associated with all-cause and cardiovascular mortality, overweight and obesity, type 2 diabetes, depression and psychological well-being. Importantly, many of these associations were independent of participation in moderate to vigorous intensity physical activity. We propose a pilot study to assess the feasibility, acceptability and preliminary efficacy of two interventions targeting sedentary behavior. Since it is currently unknown what component of sedentary behavior exposure presents the greatest risk to health, we propose separate interventions to reduce overall sedentary time and to promote breaks in sedentary time.

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Key information

Conditions

Sedentary Behavior Behavior

Age range

50 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of California, San Diego

La Jolla, California, 92093, United States

About this study

Primary aim: To determine the acceptability and feasibility of selected personal, social and environmental strategies to reduce overall sitting time and increase the number of times participants stand up in a day.

Secondary aim: To assess whether existing and new measurement approaches can detect specific changes in sedentary behavior.

Exploratory aim: To establish whether specified intervention strategies were efficacious in reducing sedentary behavior and whether intervention effects were specific to the targeted sedentary behavior construct (e.g. decreased overall sitting time or increased number of breaks in sitting).

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Males or females 50 -70 years of age
  • Able to attend 4 measurement visits with study staff in 3 consecutive weeks
  • Spend at least 8 hours per day sitting
  • Willing and able to wear study device for 21 days
  • Able to read and write in English
  • Able to provide written informed consent

Exclusion criteria

  • Do not sit for at least 8 hours per day
  • Unable to attend 4 visits
  • Diagnosis of serious chronic condition that would limit the ability to stand

Treatment and study plan

Sedentary Behavior

Behavioral

Participants were randomized to either reduce their total sitting time or increase sit-to-stand transitions. Information was provided in person, through written materials and by emails and phone calls in both conditions. Both groups received written educational materials on the dangers of excessive sitting and reviewed a generic day to illustrate how many sitting opportunities individuals face each day. During each session, the health educator also discussed the benefits of sitting less or increasing sit-to-stand transitions (depending on study condition) and brainstormed potential barriers to implementing the new behavior as well as strategies to overcome these barriers.

Primary outcomes

  1. Acceptability and feasibility

    Time frame: 3 weeks

    To determine the acceptability and feasibility of selected personal, social and environmental strategies to reduce overall sitting time and increase the number of times participants stand up in a day

Secondary outcomes

  1. Measurement

    Time frame: 3 weeks

    To assess whether existing and new measurement approaches can detect specific changes in sedentary behavior.

  2. Sedentary behavior

    Time frame: 3 weeks

    To establish whether specified intervention strategies were efficacious in reducing sedentary behavior and whether intervention effects were specific to the targeted sedentary behavior construct (e.g. decreased overall sitting time or increased number of breaks in sitting).

Sponsors and collaborators

Lead sponsor

University of California, San Diego

Other

Registry information

Official study title

Optimizing Sedentary Behavior Interventions to Affect Acute Physiological

Important dates

Study start
2013
Primary completion
2014
Study completion
2014
First posted
Sep 9, 2015
Registry last updated
Sep 9, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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