Application of Smart Devices in Adolescent Weight Control

According to the definition of Health Literacy, health literacy means that a person can apply his or her reading, writing, and computing abilities to health-related information and activities. WHO consider Health Literacy is the cognitive and social skills which determine the motivation and ability of individuals to gain access, to understand and use information.

The purposes of this study will to understand the relationship between health literacy, weight control behavior and weight control health outcome.

According to the purpose, the study will be multi wave longitudinal panel study. The study will apply mobile phone applications and smart watches to understand the relationship between weight control behaviors and weight control health outcome in adolescent.

There are two blocks in the mobile phone applications: questionnaire block and Weight status block will be design for the study. Questionnaire block include demography, and health literacy scales and diet diary. Weight status block include height, weight, waist circumference, and hip circumference. After the participant key-in the height and weight, the system will automatically calculate the BMI, also show the results of the BMI. The standard for BMI interpretation was by Dr. Chang's research about New Growth Charts for Taiwanese Adolescents.

The data of smart watches will be upload into the NTUH health cloud system (named NTU MED GOD). This is the NTUH health cloud, different kinds of medical materials and data could be sent to the system, such as mobile phone and smart watches data.

Inclusion criteria

• 13-19 years old adolescents;
• Could use their mobile phones to upload diet records and fill out the questionnaire;
• Adolescents and their parents agree to involve in the study and sign the consent form.

Exclusion criteria

• Severe diseases;
• Participate in other weight control program.