Effectiveness of a nurse-led mHealth approach in preventing obesity in adolescents: an intervention study.

Background: Obesity prevention in adolescents is a public health priority given its increasing prevalence and health impact of obesity.

Aim: To evaluate the effectiveness of an educational intervention in overweight and obesity using a mHealth app in improving nutritional and sports knowledge, adherence to the Mediterranean diet, physical activity and anthropometric measurements in adolescents.

Methods: A randomised controlled trial with parallel groups that included 305 adolescents.

Validation of the General and Sport Nutrition Knowledge Questionnaire (GeSNK) in Spanish Adolescents.

The General and Sport Nutrition Knowledge Questionnaire (GeSNK) is an instrument that has been developed and validated to assess the level of nutrition knowledge in adolescents and young adults. The aim of the present study was to validate the GeSNK questionnaire in a group of Spanish adolescents in the framework of a Nutrition Education Programme in Secondary Schools in Andalusia, Spain. This cross-sectional questionnaire validation study was developed in two phases: translation-cultural adaptation and validation.