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'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake

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Diet and Physical Activity Apps: Perceived Effectiveness by App Users.

Qing Wang¹, Bjørg Egelandsdal, Gro V Amdam

¹Department of Chemistry, Biotechnology, and Food Science, Norwegian University of Life Sciences, Aas, Norway. qing.wang@nmbu.no.

JMIR Mhealth and Uhealth

|April 9, 2016

Summary

This summary is machine-generated.

Diet and physical activity apps positively influence user behavior, increasing health consciousness and self-education. Frequent and combined use of these health apps enhances effectiveness in maintaining healthy habits.

Keywords:

behavioral changes diet app perceived effectiveness physical activity app

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Area of Science:

Digital Health
Behavioral Science
Health Informatics

Background:

Health apps, including diet and physical activity (PA) trackers, aim to promote healthy eating and energy expenditure.
Previous research lacked clear evidence on the effectiveness of these apps in promoting healthy behaviors.

Purpose of the Study:

To investigate the impact of diet and PA apps on user behavior.
To determine if app usage is associated with changes in diet and PA.

Main Methods:

Semi-structured focus groups (15 users, 8 non-users) explored app usability, motivations, and experiences.
A questionnaire based on focus group findings was administered to 500 Norwegian adults (mean age 25.8 years).
Data collected included behavior changes, app usage patterns, perceived effectiveness, and usability opinions.

Main Results:

App users reported increased health consciousness, self-education in nutrition and PA, and integration of apps into their social lives.
Over half of users perceived apps as effective for healthy eating and increased exercise.
Frequent, long-term, and combined use of diet and PA apps demonstrated greater effectiveness.
App users showed better maintenance of diet and PA behaviors compared to non-users.
Young adults found apps engaging but desired personalized design.

Conclusions:

App usage significantly influences user actions, health awareness, and nutritional knowledge.
These digital tools facilitate sustained healthy dietary and exercise habits.
Future health apps should prioritize personalized design to maximize user engagement and effectiveness.