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CompletedNCT05470556Updated Nov 16, 2022

Investigation of Peak Expiratory Flow and Physically Fitness in Obese and Overweight Adolescents

An observational study in Overweight and Obesity, sponsored by Biruni University. Completed at 1 site in Turkey. Open to participants aged 10 Years to 13 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-11-16.

Sponsored by Biruni University · Observational

Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
60
Ages
10 Years to 13 Years
Sex
All
01

Study summary

Due to the increasing prevalence of childhood obesity and overweight, health problems may begin to appear at an early age. The aim of this study is to examine physical activity level, core performance, anthropometric measurements and peak expiratory flow in overweight and obese adolescents compared to normal weight adolescents.

Read the detailed description

Due to the increasing prevalence of childhood obesity and overweight, health problems may begin to appear at an early age. Overweight and obese people are at risk for medical conditions that can lead to greater morbidity and mortality. Lack of physical activity is a well-known risk factor for obesity and the relationship between them has been supported by many studies. It has also been reported by studies that obesity affects respiratory parameters. In overweight and obese adolescents, a relationship is likely between the affected respiratory parameters and the weakened core region. There are not enough studies on this subject in the literature. Therefore, the aim of the study is to examine the physical activity level, core performance, anthropometric measurements and peak expiratory flow in overweight and obese adolescents in comparison with normal weight adolescents.

02

Conditions studied

  • Overweight and Obesity

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Keywords

  • peak expiratory flow
  • core muscle strength
  • physical activity
03

In context

Overweight

3,670 studies on the registry are indexed under Overweight; 849 are open to participants now.

This study's enrollment of 60 is below the median of 150 across 436 observational studies indexed under Overweight.

Browse Overweight studies →

Lead sponsor

Biruni University is the lead sponsor of 172 studies on the registry; 43 are open to participants now.

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

04

Who can participate

Ages eligible
10 Years to 13 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

The study will consist of 60 volunteer adolescents who are obese, overweight and normal weight studying in the 5th, 6th and 7th grades of secondary school.

  • Inclusion Criteria for the Obese and Overweight Group:
  • BMI percentile value is 85.-95. between and above the 95th,
  • Do not have any chronic disease,
  • Do not have orthopedic problems that would prevent them from participating in the study,
  • Secondary school students who are willing to participate in the study and whose parents' consent has been obtained will be included.

Inclusion criteria

  • BMI percentile value is 5th-85th. between,
  • Do not have any chronic disease,
  • Having no orthopedic and neurological problems that would prevent them from participating in the study,
  • Secondary school students who are willing to participate in the study and whose parents' consent has been obtained will be included.

Exclusion criteria

  • BMI percentile value below the 5th,
  • With chronic cardiac and pulmonary disease,
  • Having a diagnosis of neurological or other disease affecting cognitive functions,
  • Individuals receiving medical treatment that will affect attention and concentration will not be included.
05

Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
60 participants (actual)
Patient registry
No

Groups and cohorts

  • Overweight adolescents

    This group will consist of 20 overweight adolescents (Body mass index (BMI) percentile value is 85.-95)

  • Obese adolescents

    This group will consist of 20 obese adolescents (BMI percentile value is above the 95th)

  • normal weight

    This group will consist of 20 normal-weight adolescents (BMI percentile value is 5th-85th.)

06

What researchers measure

Primary outcomes

  1. Peak Expiratory Flow (PEF)

    Peak expiratory flow will be measured with a peak expiratory flow meter. The measurement is taken while the person is standing. After taking a deep breath, exhale as hard and as fast as you can. 3 measurements will be made and the best value will be recorded as peak expiratory flow-PEF (L/min).

    Time frame: baseline

Secondary outcomes

  1. Core Muscle Strength

    A modified push-up and sit-up test will be used to evaluate the strength of the core muscles. Measurements will be made using a stopwatch and the number of repetitions in 30 seconds will be recorded.

    Time frame: baseline

  2. Child Physical Activity Questionnaire

    Only 9 of the 10 items that make up the scale are used to calculate activity scores. Evaluates the activities done for 7 days. It consists of 5 stages of scoring. 1 indicates the lowest, 5 the highest level of physical activity. The average of the total score indicates the summary score. A higher score indicates a higher level of physical activity.

    Time frame: baseline

  3. Neck circumference

    Neck circumference will be measured from the lower border of the laryngeal protrusion with a tape measure.

    Time frame: baseline

  4. Waist circumference

    Waist circumference will be measured with a tape measure in the standing position, by determining the midpoint between the lowest rib and the iliac crest from the exposed waist circumference.

    Time frame: baseline

07

Study locations

1 site
  • Biruni University
    Istanbul, Turkey
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 Nov 16, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05470556
Lead sponsor
Biruni University
Responsible party
Buket AKINCI (Assoc. Prof., Biruni University) — Principal investigator
First posted
Jul 22, 2022
Start date
Jun 30, 2022
Primary completion
Oct 15, 2022
Completion
Nov 15, 2022
Last update
Nov 16, 2022

Study contacts

Buket AKINCI, PT, PhD
study chair · Biruni 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 completed, as verified in Nov 2022. You cannot join it, but the record below documents what was studied.

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