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NCT Number: NCT07428850

Effect of Aerobic Exercises Versus Low Interval Training on Cardiorespiratory Fitness in School Going Chlidren.

Cardiorespiratory fitness (CRF), which is a key marker of heart and lung health, can be improved through regular physical activity, particularly aerobic exercises. This project aims to evaluate the effects of aerobic exercises combined with low-intensity interval training (LIIT) on the cardiorespiratory fitness of school-going children. The increasing sedentary lifestyle among children has contributed to a decline in overall physical fitness and a rise in health-related issues.Cardiorespiratory fitness is crucial for overall health and can help reduce the risk of chronic diseases from a young age.

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Key information

Conditions

Children, Only

Age range

6 year–12 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

About this study

Cardiorespiratory fitness (CRF), which is a key marker of heart and lung health, can be improved through regular physical activity, particularly aerobic exercises. This project aims to evaluate the effects of aerobic exercises combined with low-intensity interval training (LIIT) on the cardiorespiratory fitness of school-going children. The increasing sedentary lifestyle among children has contributed to a decline in overall physical fitness and a rise in health-related issues.Cardiorespiratory fitness is crucial for overall health and can help reduce the risk of chronic diseases from a young age. The project will involve a structured program where children participate in either aerobic exercises, such as jogging or cycling, or low-intensity interval training, such as brisk walking with short breaks. Baseline measurements of heart rate, VO₂ max, 20 metter shuttle run test and endurance will be taken to assess each child's initial cardiorespiratory fitness level. The children will then undergo a 8 week training period, engaging in their assigned exercise regimen three times per week. Post intervention measurements will be recorded and compared to the baseline. This study will help determine if one type of training is more effective than the other in improving fitness levels among school-aged children, potentially guiding physical education curriculum and promoting healthier lifestyle habits from an early age.

The findings could contribute valuable insights into the role of exercise type on health outcomes, helping schools, parents, and health professionals make informed choices for children's physical activities to support optimal growth and long-term health improve heart rate , oxygen level , reduce cardio related disease.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Age 6-12
  • School going children
  • Healthy children without chronic illness
  • Cognitive skills

Exclusion criteria

  • Cardiovascular disease,
  • asthma,
  • musculoskeleton disorders
  • Children with any Physical disability
  • Behavioural issue
  • prior athletic training.

Treatment and study plan

Aerobic Exercise

Other

Experimental Group A Aerobic exercises Running or Jogging - Great for endurance and can be done in short sprints or long distances.

Time 4min

Jump Rope - A fun way to build stamina and improve coordination. Time 2min Cycling - Strengthens the heart and lungs and is often enjoyable for kids. Time 5min

Dancing and Aerobic Games:

Time. 2min Circuit Training- performed. Time. 3min Rest. 1min Stair climbing Time. 2 min These exercises performed 3 days a week. Experimental Group B:Low interval training exercises

1)Brisk Walking and Arm Swings Time: 3 minutes of brisk walking Duration: 12 minutes total 2. Step-Ups on a Low Platform or Bench Time: 2 minutes of step-ups (alternating legs) Duration: 9 minutes total 3)Low-Intensity Jump Rope Time: 1 minute of slow-paced jumping (or skipping in place if no rope is available) 4. Side-to-Side Steps Time: 2 minutes of lateral steps (side-to-side motion with a slight squat) Rest: 1 minute

Other names: Low interval training exercises

Primary outcomes

  1. 20 metter shuttle run test

    Time frame: For one individual usaually lasts between 9-12 minutes

    The 20-meter shuttle run test, also known as the beep test or PACER test. in schools to measure cardiovascular endurance in children. Here's how it's performed and measured:

    Starting the Test:

    Students line up at one end of the 20-meter track. An audio track, which plays a beep sound at set intervals, is used to signal when students should start running and reach the other line.

    Running Pattern:

    Students begin running at the sound of the first beep. They must reach the opposite line before the next beep sounds.Incease intensity faster.End test.

Secondary outcomes

  1. VO2 max

    Time frame: For one individual around 3-4 minutes required for performed

    tests can be difficult to administer and are not suitable for all fitness levels. The quickest and easiest way to measure your VO2 max is to use a basic calculation or a walking/jogging test.

    Determine your resting heart rate. Many fitness trackers and watches come with a heart rate monitor. If you have one of these, record your heart rate while at rest (sitting down, doing little-to-no physical activity). The best time to measure your 25 years old, your HRmax = 220 -25 = 195 beats per minute (bpm). There is some research that suggests this formula oversimplifies the calculation. You can also estimate your max heart rate with the formula HRmax = 205.8 - (0.685 x age) Define the simple VO2 max formula. The simplest formula to calculate VO2 max is VO2 max = 15 x (HRmax/HRrest). This method is considered to compare well with other common formulas. The units for VO2 max are milliliters of oxygen per kilogram of body weight per minute (mL/kg/min)

Study contacts

Contact information is provided by the study sponsor or research team.

IMRAN AMJAD, PhD

CONTACT

[email protected]

9233224390125

MUHAMMAD ASIF JAVED, MS-PT

CONTACT

[email protected]

923224209422

Sponsors and collaborators

Lead sponsor

Riphah International University

Other

Registry information

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Feb 24, 2026
Registry last updated
Feb 24, 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.

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