A Study on the Effectiveness of Comprehensive Intervention Based on Specialized Physical Education Courses in the Prevention of Comorbidity Among Junior Middle School Students

November 18, 2025 updated by: Xiaoyan Wu

Junior high school students are in a critical period of physical and mental development, currently facing two major health challenges: first, persistently high rates of myopia with a noticeable trend toward younger onset; second, the overlapping occurrence of common conditions such as overweight/obesity, spinal deformities, and psychological anxiety.Traditional physical education classes, characterized by limited content and insufficient targeting, struggle to address these issues. Multimorbidity of common diseases in children and adolescents refers to the coexistence of two or more common diseases or chronic health problems in the same individual.

Therefore, this study innovatively designed a specialized physical education curriculum integrating "exercise + health education," aiming to fill the gap in comprehensive prevention and control of common adolescent health conditions through traditional physical interventions.

This study systematically investigated the effects of a specialized physical education intervention program on myopia prevention and control, as well as the simultaneous prevention of multiple common health conditions (overweight/obesity, abnormal blood pressure, insufficient cardiorespiratory fitness, abnormal spinal curvature, anxiety symptoms, and depression symptoms) among junior high school students in China. The program was designed and implemented for students at a Chinese secondary school, ultimately aiming to provide a replicable school-based physical education intervention model for adolescent health promotion. The study strictly adhered to a randomized controlled design, employing multidimensional evaluation, long-term follow-up, and rigorous quality control to ensure scientific validity and reliability of the findings.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

200

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Individuals who voluntarily participate in this study and whose parents or guardians voluntarily sign the informed consent form.
  • Individuals capable of cooperating to complete measurements of all indicators throughout the entire intervention cycle.

Exclusion Criteria:

  • Individuals with eye conditions such as glaucoma, strabismus, or anisometropia.
  • Wearers of orthokeratology lenses.
  • Individuals who have undergone refractive surgery.
  • Individuals who have taken weight-loss medications or undergone weight-loss surgery.
  • Individuals with obesity caused by endocrine disorders or medication side effects.
  • Individuals with mental health disorders.
  • Individuals currently taking medications for mental health disorders.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: The control group participated in regular physical education classes.
Experimental: The intervention group participated in specialized physical education courses.
Other: The intervention group participated in specialized physical education courses.
Intervention Measures for This Study: During school hours, a portion of regular physical education classes will be replaced with specialized physical education courses jointly developed by the research team and school physical education teachers. These specialized courses aim to enhance the enjoyment of physical education, increase student participation, and consequently boost physical activity levels. The specialized physical education curriculum comprises five courses: darts, frisbee, flag football, handball, and orienteering. Students have one physical education class daily during their five-day school week. Routine physical education classes proceed as normal during school hours, ensuring both study groups complete one daily physical education class except under special circumstances. On weekdays, the intervention group replaces routine physical education classes with specialized physical education classes three days per week. These specialized classes are taught by dedicated physi

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Prevalence of Multimorbidity of common diseases
Time Frame: baseline、"through study completion, an average of 1 year
baseline、"through study completion, an average of 1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Xiaoyan Wu

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

November 15, 2025

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

September 1, 2026

Study Registration Dates

First Submitted

November 15, 2025

First Submitted That Met QC Criteria

November 18, 2025

First Posted (Actual)

November 20, 2025

Study Record Updates

Last Update Posted (Actual)

November 20, 2025

Last Update Submitted That Met QC Criteria

November 18, 2025

Last Verified

November 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 20250813

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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