Closing the Gap Between Self-reported and Accelerometer-based Physical Activity (GAP)

January 3, 2019 updated by: University Medicine Greifswald

Effect of an Intensity Level Video Demonstration on the Gap Between Self-reported and Accelerometer-measured Physical Activity in Individuals Aged 40 to 75 Years

This study examines the effect of a video-based intensity level demonstration on self-reported physical activity in individuals aged between 40 and 75 years. Aim of the video demonstration is to achieve a better concordance of physical activity reports with accelerometer-based measurements.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This study examines whether the demonstration of different intensity levels of physical activity by video in the context of a tablet PC (personal computer)-based survey can achieve a higher degree of concordance between self-reported and accelerometer-measured physical activity compared to an assessment without video demonstration. The recruitment of the study participants in the age range between 40 and 75 years takes place in a shopping center in the city Greifswald in Germany.

Informed consent consists of: (i) activity recording over 7 days using an accelerometer, (ii) completion of standardized questionnaires, (iii) participation in a standardized measurement of weight and height as well as waist and hip circumference.

Participants are asked to wear an accelerometer during the day for a period of 7 days. Subsequently, a questionnaire about the frequency, duration and intensity of physical activity in the last 7 days will be answered in the DZHK (Deutsches Zentrum für Herz-Kreislauf-Forschung)- examination center. Prior to the physical activity assessment the study participants are randomly assigned to the study conditions "Video" or "No Video" (ratio 1:1). Optionally, participants may receive feedback on their physical activity measured by accelerometer upon completion of the study.

Study Type

Interventional

Enrollment (Actual)

379

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Germany
      • Greifswald, Germany
        • Institute of Social Medicine and Prevention, University Medicine Greifswald

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

-

Exclusion Criteria:

  • cognitive impairment
  • inadequate language skills

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Screening
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: "Video"-group
Video group: Individuals in this group receive the intervention "Video demonstration of physical activity intensity levels". They watch a 3-minute-video explaining and visualizing light-, moderate-, and vigorous-intensity levels of physical activity before completing a tablet PC-supported physical activity assessment at the DZHK-examination center.The video can not be skipped.
Other: Video demonstration of physical activity intensity levels
In the video demonstration, an approximately 50 year old male explains 1) light-intensity, 2) moderate-intensity, and 3) vigorous-intensity physical activity referring to differences in heart rate, breathing frequency and capability to talk normally. Simultaneously, on a treadmill he demonstrates the body signs of the three intensity levels. He gives examples and points out that there are individual differences in the intensity evaluation of comparable activities.
No Intervention: "No video"-group
No video group: Individuals in this group do not receive the intervention "Video demonstration of physical activity intensity levels". They complete a tablet PC-supported physical activity assessment at the DZHK-examination center without receiving a 3-minute-video explaining and visualizing the different intensity levels of physical activity.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Difference between physical activity measured by self-report and by accelerometry
Time Frame: The accelerometer is worn for 7 days and then the IPAQ-SF is retrospectively answered for these 7 days.
Measures: assessement via tablet PC (International Physical Activity Questionnaire-Short Form, IPAQ-SF) and objective measurement by accelerometry
The accelerometer is worn for 7 days and then the IPAQ-SF is retrospectively answered for these 7 days.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Medicine Greifswald

Collaborators

Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK)

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 23, 2018

Primary Completion (Actual)

November 28, 2018

Study Completion (Actual)

November 28, 2018

Study Registration Dates

First Submitted

May 15, 2018

First Submitted That Met QC Criteria

May 15, 2018

First Posted (Actual)

May 29, 2018

Study Record Updates

Last Update Posted (Actual)

January 4, 2019

Last Update Submitted That Met QC Criteria

January 3, 2019

Last Verified

January 1, 2019

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • GAP05/18

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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