Sedentary Behavior
Conditions
Brief summary
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.
Detailed description
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).
Interventions
BEHAVIORALSedentary behavior
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.
Sponsors
University of California, San Diego
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
50 Years to 70 Years
Healthy volunteers
Yes
Inclusion criteria
1. Males or females 50 -70 years of age 2. Able to attend 4 measurement visits with study staff in 3 consecutive weeks 3. Spend at least 8 hours per day sitting 4. Willing and able to wear study device for 21 days 5. Able to read and write in English 6. Able to provide written informed consent
Exclusion criteria
1. Do not sit for at least 8 hours per day 2. Unable to attend 4 visits 3. Diagnosis of serious chronic condition that would limit the ability to stand
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Acceptability and feasibility | 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
| Measure | Time frame | Description |
|---|---|---|
| Measurement | 3 weeks | To assess whether existing and new measurement approaches can detect specific changes in sedentary behavior. |
| Sedentary behavior | 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). |
Countries
United States
Outcome results
None listed