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Evaluation of a Smartphone Intervention to Reduce Sedentary Behavior

NCT03094858 · Status: WITHDRAWN · Phase: NA · Type: INTERVENTIONAL

Last updated 2021-06-11

No results posted yet for this study

Summary

Participants (N = 300) will be randomly assigned to: 1) an equipment-only comparison group that receives a smartphone and an activity monitor wristband but does not receive smartphone intervention prompts, or 2) the intervention group who will receive an activity monitor wristband that works in conjunction with a smartphone to reduce sedentary time via smartphone prompts during prolonged sedentary bouts. All participants will be provided with a Fitbit® wristband activity monitor and an Android smartphone on the same day of the week (i.e., Mondays). Participants will complete a 1-week baseline accelerometer and EMA period prior to the start of the intervention. Participants will be followed for 26 weeks after the intervention begins with follow-up visits at 6, 13, and 26 weeks. The primary outcome will be accelerometer-measured time spent in sedentary activity. Sedentary breaks, total active time, and time spent in light, moderate, and vigorous activity will be additionally evaluated as outcomes. Contextual variables and potential treatment mechanisms will be assessed via traditional questionnaire measurement and daily random EMAs at baseline and all follow-up visits. Brief smartphone-based daily diary assessments will be completed daily for the duration of the study.

Conditions

  • Risk Reduction Behavior

Interventions

DEVICE

Smartphone with prompts

Smartphone will be used to prompt randomly selected participants in intervention group to be active

DEVICE

Wristband

Wristband will monitor activity of all participants

DEVICE

Smartphone

Smartphone will be used to monitor activity but prompts will not be given to randomly selected participants

Sponsors & Collaborators

  • University of Oklahoma

    lead OTHER

Principal Investigators

  • Darla Kendzor, PhD · University of Oklahoma

Study Design

Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
99 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-03-01
Primary Completion
2020-04-30
Completion
2020-04-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03094858 on ClinicalTrials.gov