Ecological Momentary Determinants of Sedentary Behavior

NCT03399916 | Completed DMC

• 1 other identifier: STUDY00004349
• Study Type: interventional
• Target: 17
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Sedentary Behavior

Outcome Measures

Primary Outcomes (4)

• Minutes of sitting behavior (minutes/8h workday)

  Objectively measured minutes of sitting, standardized to an 8h workday.

  40 days

• Minutes of standing behavior (minutes/8h workday)

  Objectively measured minutes of standing, standardized to an 8h workday.

  40 days

• Minutes of light-intensity physical activity (minutes/8h workday)

  Objectively measured minutes of light-intensity physical activity, standardized to an 8h workday.

  40 days

• Minutes of moderate-vigorous physical activity (minutes/8h workday)

  Objectively measured minutes of moderate-vigorous physical activity, standardized to an 8h workday.

  40 days

Secondary Outcomes (1)

• Momentary affective state (4-item Likert Scales)

  20 days

Study Arms (2)

Prompt

EXPERIMENTAL

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

No Prompt

NO INTERVENTION

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.

Interventions

Prompt sent BEHAVIORAL

Prompt

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Full-time employees
• Males or females
• Ages 18-65
• Sedentary working habits (as indicated by \>7 hrs/day of sedentary time at work in the Sedentary Behavior Questionnaire)
• Willing to engage in the study assessment and intervention for 10 weeks.

You may not qualify if:

• Non-ambulatory, pregnant
• Non-English speaking
• Diagnosis of psychiatric problems or taking psychiatric medications
• Medical history that prohibits prolonged standing.

Sponsors & Collaborators

• Arizona State University: lead
• American College of Sports Medicine: collaborator

Study Sites (1)

Arizona State University

Phoenix, Arizona, 85004, United States

Location

MeSH Terms

Conditions

Sedentary Behavior

Condition Hierarchy (Ancestors)

Behavior

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: FACTORIAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Model Details: PART B: A three-factor design with two-levels yielded eight experimental conditions, half of which encouraged standing more (stand; n prompt types = 80, n total prompts =800) and the other half encouraged moving more (move; n prompt types = 80, n total prompts =800).

Study Record Dates

• First Submitted: December 22, 2017
• First Posted: January 17, 2018
• Study Start: October 1, 2016
• Primary Completion: February 1, 2017
• Study Completion: February 1, 2017
• Last Updated: October 31, 2019

Record last verified: 2019-10

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)