Skip to main content
OpenTrials
Completed

NCT Number: NCT07244796

Promoting Healthy Lifestyle Behaviors in High School Students

Adolescence (ages 10-19) is a critical developmental stage in which individuals undergo significant physical, psychological, and social changes. Health behaviors acquired during this period often persist into adulthood, directly influencing both individual and public health. Adolescents' lifestyles are shaped by factors such as family, school, peers, and socio-cultural environment. A healthy lifestyle includes habits such as regular physical activity, balanced nutrition, adequate sleep, and limited screen time, all of which are key determinants of quality of life.

The aim of this study is to evaluate the effectiveness of an educational program designed to improve high school students' hygiene, screen use, nutrition, physical activity, and sleep habits. It is hypothesized that the program will increase students' healthy lifestyle beliefs and hygiene behaviors, while reducing screen addiction and insomnia levels.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Healthy Lifestyle Behaviors in High School Students Behavior Motor Activity

Age range

10 year–18 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Erzurum Technical University

Erzurum, Turkey (Türkiye)

About this study

Adolescence, defined by the World Health Organization as the period between 10 and 19 years of age, represents a transitional stage from childhood to adulthood characterized by profound physiological, cognitive, psychological, and social changes. These transformations significantly influence adolescents' health-related quality of life, which is a multidimensional construct encompassing physical, psychological, and social well-being. Health behaviors acquired during this developmental stage tend to persist into adulthood and therefore play a critical role in the prevention of chronic diseases and the promotion of lifelong health. For instance, unhealthy dietary patterns, sedentary lifestyles, excessive screen use, and irregular sleep habits established during adolescence may increase the risk of obesity, cardiometabolic disorders, and psychological problems in later life. Conversely, adopting positive health practices such as balanced nutrition, regular physical activity, proper sleep hygiene, and limited screen time during this period can enhance quality of life and support healthy growth and development.

Adolescents' health behaviors are influenced by multiple environmental factors, including family, peers, school, socioeconomic status, and cultural context. Thus, interventions aimed at promoting healthy lifestyles in this age group require a holistic and multifactorial approach. Education programs focusing on health-related knowledge and practices have been shown to play a key role in shaping positive behaviors and raising awareness about health protection and disease prevention.

The present study aims to evaluate the effectiveness of an educational program designed for high school students, addressing five key domains: hygiene, screen dependency, nutrition, physical activity, and sleep habits. The program seeks not only to increase adolescents' knowledge in these areas but also to instill sustainable health-promoting behaviors. Four hypotheses were established: (1) students in the intervention group will report higher scores on the Healthy Lifestyle Beliefs Scale compared to the control group; (2) their Screen Dependency Scale scores will decrease; (3) their Hygiene Behaviors Scale scores will increase; and (4) their Bergen Insomnia Scale scores will decrease following the program.

This research emphasizes the importance of implementing structured, school-based educational interventions to promote healthier lifestyles among adolescents. By targeting multiple dimensions of health simultaneously, such interventions may contribute to reducing long-term health risks, improving well-being, and fostering healthier future generations.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Being a 9th, 10th, or 11th-grade student
  • Not having any illness that could cause communication problems
  • Volunteering to participate in the study

Exclusion criteria

-Students who did not meet the inclusion criteria were excluded from the study.

Treatment and study plan

provide training

Behavioral

Face-to-face training on hygiene practices, screen addiction, nutrition, physical activity, and sleep habits

Primary outcomes

  1. Healthy Lifestyle Belief Scale for Adolescents

    Time frame: Week 1 = Data collection from all participants. Weeks 2, 3, 4, 5, and 6 = Training provided to the Training Group. Week 7 = Post-test data collection from all participants. Weeks 8, 9, 10, 11, and 12 = Training provided to the Control Group.

    The Healthy Lifestyle Belief Scale for Adolescents was developed by Kelly et al. (2011), and its Turkish validity and reliability study was conducted by Kudubeş and Bektas (2020). The scale highlights beliefs related to various aspects of maintaining a healthy lifestyle. The scale has a total of 16 items and three subscales.The scale, prepared according to a five-point Likert system, is answered on a scale of "1 = Strongly Disagree" to "5 = Strongly Agree." A minimum of 16 and a maximum of 80 points can be obtained on the entire scale. An increase in the score obtained on the scale indicates an increase in adolescents' belief in healthy living. The Cronbach's alpha coefficient of the scale is 0.90.

  2. Screen Addiction Scale

    Time frame: Week 1 = Data collection from all participants. Weeks 2, 3, 4, 5, and 6 = Training provided to the Training Group. Week 7 = Post-test data collection from all participants. Weeks 8, 9, 10, 11, and 12 = Training provided to the Control Group.

    The SAS is a comprehensive measurement tool that covers any screen rather than focusing on specific screen-based devices. The scale can be defined as a synthesis of screen-based addictions such as internet, smartphone, television, social media, computer, and video game addiction. It has been found that the EBÖ has a structure consisting of 21 items and 4 factors. A valid and reliable scale was obtained, validated by a first-order multifactor model and a second-order multifactor model. The scale, prepared according to a five-point Likert system, is answered as "1=Strongly Disagree, 5=Strongly Agree." The scale can yield a minimum score of 21 and a maximum score of 105. High scores on the scale indicate high screen dependency, while low scores indicate low screen dependency. The Cronbach's alpha value, which is the internal consistency coefficient of the scale, is reported to be 0.925.

Secondary outcomes

  1. Hygiene Behavior Assessment Scale

    Time frame: 4 Week 1 = Data collection from all participants. Weeks 2, 3, 4, 5, and 6 = Training provided to the Training Group. Week 7 = Post-test data collection from all participants. Weeks 8, 9, 10, 11, and 12 = Training provided to the Control Group.

    The HBAS, developed by Gül and Özay Köse (2020), has been reported to be a valid and reliable measurement tool for assessing hygiene behaviors among secondary school students. The HBAS consists of a total of 27 items, all prepared on a 5-point Likert scale, and comprises two factors. The statements in the scale are scored using the following scale: 1: Never, 2: Rarely, 3: Sometimes, 4: Very often, 5: Always. Thus, the lowest possible score on the HDÖ is 27, and the highest possible score is 135. The Cronbach Alpha internal consistency coefficient for the scale as a whole is reported as .902.

  2. Bergen Insomnia Scale (BIS) in Adolescents

    Time frame: Week 1 = Data collection from all participants. Weeks 2, 3, 4, 5, and 6 = Training provided to the Training Group. Week 7 = Post-test data collection from all participants. Weeks 8, 9, 10, 11, and 12 = Training provided to the Control Group.

    The scale developed by Pallesen et al. (2008) was validated and tested for reliability in Turkish by Bay and Ergun (2018). The Bergen Insomnia Scale reliability and validity study indicated that it can be used to measure insomnia in adolescents in Turkish society. The scale consists of six questions with two factors. The scale, which tests different symptoms of insomnia, is an 8-point Likert scale. The lowest possible score on the scale is 0, and the highest possible score is 42. Within the scope of reliability analyses, it was stated that the Cronbach's alpha reliability coefficient of the scale was 0.79 for the daytime symptoms subscale, 0.63 for the nighttime symptoms subscale, and 0.72 for the total BIS

Sponsors and collaborators

Lead sponsor

Erzurum Technical University

Other

Registry information

Official study title

Developing Healthy Lifestyle Behaviors in High School Students: An Experimental Education Model

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Nov 24, 2025
Registry last updated
Jul 1, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.