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

University Medicine Greifswald

Status: Completed

Conditions: Physical Activity

Treatments: Other: Video demonstration of physical activity intensity levels

Study type: Interventional

Funder types: Other

Identifiers

NCT03539237

GAP05/18

Details and patient eligibility

About

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.

Full 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.

Enrollment: 379 patients

Sex: All

Ages: 40 to 75 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

Exclusion criteria

• cognitive impairment
• inadequate language skills

Trial design

Primary purpose: Screening

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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379 participants in 2 patient groups

"Video"-group

Experimental group

Description:

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.

Treatment:

Other: Video demonstration of physical activity intensity levels

"No video"-group

No Intervention group

Description:

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.