An interventional study of Prompt sent in Sedentary Behavior, sponsored by Arizona State University. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-10-31.
Sponsored by Arizona State University · Not applicable, Interventional, and Prevention
A two phase trial to understand the personal, behavioral, environmental, and contextual factors that underpin sedentary behavior and to systematically test a series of contextual prompt characteristics that may lead to subsequent change in sedentary behavior.
Phase 1: This is an observational study that will utilized Ecological Momentary Assessment, to determine which personal (e.g. fatigue, mood, and stress level), behavioral (e.g. watching TV, working at desk, and eating meals), environmental (e.g. being at home or work, time of the day, and weather) and contextual factors were associated with sedentary behavior. Three EMAs per day will be sent randomly sent to participants on weekdays (Monday to Friday), for four consecutive weeks (total of 20 days). During these days, participants will also wear an activPAL device to objectively measure sedentary behavior. The purpose of the study is to identify the combination of factors most likely to precede and proceed short (\<30 min) and long (≥30 min) bouts of sedentary behavior.
Phase 2: A micro-randomized trial will be used to evaluate the efficacy of an email-based prompt to elicit a proximal effect (e.g., a postural response defined as a transition from seated to standing or seated to moving within 5 minutes to interrupt prolonged sitting) compared to a no prompt condition. A secondary aim of this study is to determine whether prompts that encourage standing are more likely to elicit a response than those that encourage moving. An exploratory aim is to examine whether varying the content of the stand or move prompt to include combinations of short term goals and employer approval, influence the magnitude of response.
1,273 studies on the registry are indexed under Sedentary Behavior; 300 are open to participants now.
This study's enrollment of 17 is below the median of 60 across 1,076 interventional studies indexed under Sedentary Behavior.
Browse Sedentary Behavior studies →Arizona State University is the lead sponsor of 238 studies on the registry; 42 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
An email based prompt was sent- containing either a stand or move message. Exploratory variations of the prompt were designed to include the addition of a goal e.g., stand for the next 5-minutes, and/or employer support e.g., PTS says "stand for the next 5 minutes".
Behavioral: Prompt sent
Prompt delivery was sequentially randomized to be sent (ST) or not sent (NST) to all participants (probability of 0.5), at eight decision points per day (between 9am and 5pm), to achieve a total of 3200 randomizations across participants (160 per participant). Therefore 50% of the time, no prompt was sent.
Minutes of sitting behavior (minutes/8h workday)
Objectively measured minutes of sitting, standardized to an 8h workday.
Time frame: 40 days
Minutes of standing behavior (minutes/8h workday)
Objectively measured minutes of standing, standardized to an 8h workday.
Time frame: 40 days
Minutes of light-intensity physical activity (minutes/8h workday)
Objectively measured minutes of light-intensity physical activity, standardized to an 8h workday.
Time frame: 40 days
Minutes of moderate-vigorous physical activity (minutes/8h workday)
Objectively measured minutes of moderate-vigorous physical activity, standardized to an 8h workday.
Time frame: 40 days
Momentary affective state (4-item Likert Scales)
Affective states will be assessed using an ecological momentary survey based on the Positive and Negative Affect Scale (4-point Likert scale ranging from "not at all" to "extremely") (Range: 1-4) questionnaire. The ecological momentary assessment questions were designed to assess a range of contextual information (i.e., current office location, posture, social interaction) and physical and emotional feeling states (i.e., calmness, energy, happiness, stress, sadness, pain level, productivity, and willingness to stand/move). Each of these questions will be evaluated individually andaveraged to evaluate positive (i.e., calmness, energy, happiness) and negative (i.e., sadness and stress) affective states. An open-source app (Personal Analytic Companion App) will be used to deliver EMA questions randomly throughout a participant's workday. This will allow us to measure self-reported levels of positive or negative affect.
Time frame: 20 days
PDFs hosted by the registry, ClinicalTrials.gov.
Plan to share: No
Ran from Oct 2016 to primary completion in Feb 2017, 4 months.
Of 733 non-industry interventional studies with no phase under Sedentary Behavior, half reached primary completion within 14 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 31. This study's 4 months is below that.
Counting every sponsor, half of 741 studies reached it within 14 months; a quarter within 6 and three quarters within 31.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Oct 2019. You cannot join it, but the record below documents what was studied.
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