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

NCT ID: NCT03539237

Last Updated: 2019-01-04

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 379 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2018-05-23
• Study Completion Date: 2018-11-28

Brief Summary

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.

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.

Conditions

Physical Activity

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: SCREENING
• Blinding Strategy: SINGLE

Study Groups

"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.

Group Type: EXPERIMENTAL

Video demonstration of physical activity intensity levels

Intervention Type: OTHER

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 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.

Group Type: NO_INTERVENTION

No interventions assigned to this group

Interventions

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.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

-

Exclusion Criteria

• cognitive impairment
• inadequate language skills

• Minimum Eligible Age: 40 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK)

OTHER

Sponsor Role: collaborator

University Medicine Greifswald

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

Institute of Social Medicine and Prevention, University Medicine Greifswald

Greifswald, , Germany

Countries

Germany

References

Voigt L, Ullrich A, Gross S, Guertler D, Jaeschke L, Dorr M, van den Berg N, John U, Ulbricht S. Associations of accelerometer-based sedentary bouts with adiposity markers among German adults - results from a cross-sectional study. BMC Public Health. 2023 Mar 10;23(1):469. doi: 10.1186/s12889-023-15304-8.

Reference Type: DERIVED

PMID: 36899317 (View on PubMed)

Other Identifiers

GAP05/18

Identifier Type: -

Identifier Source: org_study_id