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Not yet recruitingNCT06619925Updated Oct 1, 2024

The Role of After-school Exercise Services in Promoting Myopia and Physical and Mental Health in Children

An observational study in Common Diseases, Joint Prevention and Students, sponsored by Fangbiao Tao. Not yet recruiting. Open to participants aged 5 Years to 14 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-10-01.

Sponsored by Fangbiao Tao · Observational

From the registry’s dates

  • Primary completion was expected by Dec 2025, 9 months ago, but the record still lists the study as not yet recruiting.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
2,000
Ages
5 Years to 14 Years
Sex
All
01

Study summary

This project is a prospective cohort study to evaluate the impact of after-school extended physical education services on the visual health, physical health indicators, and mental health of children and adolescents participating in these services over a one-year period. The study collected data on the participation rate, duration, activity content, and organisational form of the after-school extended hours service through a questionnaire; the demographic characteristics, sleeping habits, and dietary habits of the participants through a self-administered questionnaire on the multidisease behaviour of children and adolescents; the intensity of the activities of the students who participated in the after-school extended hours service was investigated through an accelerometer and a physical activity questionnaire; and data on students\' visual acuity, body mass index, and mental health status were collected through a medical check-up. Students' visual acuity data, body mass index, maximum oxygen uptake, and other indicators of physical health and mental health were collected through physical examination, and data on changes in one year were collected through half-yearly/follow-up visits to establish a cohort to evaluate the effects of after-school extended hours services on students' myopia rates, physical health and mental health levels by different types, intensity and duration of exercise.

Read the detailed description

Students in grades 1-6 of several primary schools were selected as the study subjects. According to the baseline survey, the study subjects were divided into after-school extended physical education service group and non-after-school extended physical education service group, and their behavioural habits as well as the contents of the after-school extended physical education service, visual acuity, BMI, cardiorespiratory fitness, spinal curvature abnormality, and mental health were investigated by means of questionnaires and other tools, so as to analyse the relationship between after-school extended physical education service and the physical and mental health of the students.

02

Conditions studied

  • Common Diseases
  • Joint Prevention
  • Students
  • After-school Extended Sports Service

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Keywords

  • common diseases
  • joint prevention
  • after-school extended sports service
03

In context

Myopia

984 studies on the registry are indexed under Myopia; 210 are open to participants now.

This study's planned enrollment of 2,000 is above the median of 150 across 173 observational studies indexed under Myopia.

Browse Myopia studies →

Lead sponsor

Fangbiao Tao is the lead sponsor of 10 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
5 Years to 14 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Students in grades 1-6 in a number of primary schools in a city were selected for the study

Inclusion criteria

  • ① Those who voluntarily participate in the after-school extended hours service;

    • Those who voluntarily participate in this study and sign the informed consent; ③ Basic reading, writing and comprehension skills to understand the questionnaire and be able to answer it;

Exclusion criteria

Exclusion Criteria:

  • ① Unfit to participate in sports activities for health or physical reasons; ② Suffering from glaucoma, glaucoma and other diseases.

    • Those who suffer from glaucoma, strabismus, refractive error and other eye diseases that affect vision;
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
2,000 participants (estimated)
Patient registry
No

Groups and cohorts

  • after-school extended sports service

    Impact of voluntary participation in different types (e.g. outdoor physical activities, indoor physical activities, ball games, calisthenics, etc.), intensity and duration of after-school extended physical education services on children's myopia and other physical and psychological well-being

    Behavioral: after-school extended sports service

  • non-after school extended sports service

    Students in the same grade as the exposure group but participating in after-school non-physical education extended services (e.g., homework help, static activities such as calligraphy, chess, etc.) served as a control group, aiming to maximise the control of the influence of potential factors other than physical activity on the results of the study.

    Behavioral: non-after school extended sports service

Interventions

  • Behavioralafter-school extended sports service

    Impact of voluntary participation in different types (e.g. outdoor physical activities, indoor physical activities, ball games, calisthenics, etc.), intensity and duration of after-school extended physical education services on children\'s myopia and other physical and psychological well-being

  • Behavioralnon-after school extended sports service

    Students in the same grade as the exposure group but participating in after-school non-physical education extended services (e.g., homework help, static activities such as calligraphy, chess, etc.) served as a control group, aiming to maximise the control of the influence of potential factors other than physical activity on the results of the study.

06

What researchers measure

Primary outcomes

  1. body mass index

    Among school-age children (5-9 years) and adolescents (10-19 years), BMI to determine whether they are obese or underweight depends on age and gender. Referring to the 2014 National Physical Fitness Standards for Students cut-off values were classified as normal, low weight, overweight, and obese.

    Time frame: At baseline, month 6 and month 12

  2. cardiorespiratory fitness

    Cardiorespiratory endurance in children and adolescents was measured using the 20 m shutle run test.Extrapolated maximal oxygen uptake in children and adolescents using a 20 m round trip run = 62.103 + (0.302\*Number of 20 mSRTs) - (0.877\*BMI) - (4.874\*Sex) - (0.465\*Age) (M=0, F=1)

    Time frame: At baseline, month 6 and month 12

  3. Spinal curvature abnormalities

    Referring to the standard 'Primary screening of spinal curvature abnormalities in children and adolescents' (GB/T 16133-2014), the visual inspection method, the forward bending test (FBT), and the angle of trunk rotation measurement (ATR), and the combination of the three methods were used to carry out the screening of spinal curvature abnormalities in children and adolescents. The type of scoliosis was assessed according to the combination of the three tests, and was classified as no scoliosis, scoliosis I degree, scoliosis II degree, and scoliosis III degree.

    Time frame: At baseline, month 6 and month 12

  4. mental health

    Mental health status was measured using the Strengths and Difficulties Questionnaire (SDQ) (Chinese version) , which consists of 25 questions with five dimensions: emotional problems, peer relationships, conduct problems, hyperactivity/attention problems and pro-social behaviour. Each question was assigned a score of 0-2 according to 'does not meet', 'somewhat meets' and 'fully meets', with some of the entries reversed; the total score for all questions was calculated, with a range of 0-40, with higher scores representing closer to abnormality.

    Time frame: At baseline, month 6 and month 12

  5. myopic

    Screening myopia was defined as SE≤-0.50D determined by computerised optometry under non-ciliary muscle paralysis when children and adolescents aged 6 years or older had a UCVA \< 5.0; mild myopia: -3.00D\< SE≤-0.50D; moderate myopia: -6.00D \<SE≤﹣3.00D; high myopia: SE ≤ -6.00 D. Myopia progression was defined as myopia progression if the study subjects baseline myopia progressed to more severe myopia at follow-up.

    Time frame: At baseline, month 6 and month 12

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 1, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06619925
Lead sponsor
Fangbiao Tao
Responsible party
Fangbiao Tao (Professor, Anhui Medical University) — Sponsor-investigator
First posted
Oct 1, 2024
Start date
Oct 1, 2024 (estimated)
Primary completion
Dec 30, 2025 (estimated)
Completion
Dec 30, 2025 (estimated)
Last update
Oct 1, 2024

Study contacts

Tao Fang biao professor
Contact
taofangbiao@126.com
13856986775
Cao Cai yun
principal investigator · Anhui Medical University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2024. You cannot join it, but the record below documents what was studied.

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