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Completed

NCT Number: NCT06549192

Autonomic Responses of Amateur Child Athletes to Aerobic Exercise Test

The aim of our study was to investigate the relationship between aerobic capacity, which will be revealed by aerobic exercise test, and HRV, blood pressure, heart rate and pulmonary function parameters in healthy children interested in different sports branches (boxing, weightlifting, taekwando, swimming). The main questions it aims to answer are:

* Is there any relationship between aerobic capacity demonstrated by 20 m shuttle test and heart rate variability, blood pressure, heart rate and respiratory parameters in different sports branches? * Is there a relationship between the month/year that children/adolescents are involved in sports and HRV, blood pressure and respiratory parameters?

Participants:

* Before the exercise test, ECG, blood pressure, heart rate and pulmonary function test will be performed. * A 20 meter shuttle run test will be performed. * Measurements will be repeated after the exercise test.

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Key information

Conditions

Heart Rate Variability Sport

Age range

6 year–18 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Sivas Cumhuriyet University

Sivas, 58140, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • 6-18 years old, registered to a club in boxing, weightlifting, taekwando and swimming (4 groups), children and adolescents who have been actively participating in their training for at least 3 months

Exclusion criteria

  • People with neurological, orthopedic, cardiovascular diseases, those with any acute or chronic illness, smokers or drug users, elite level athletes

Treatment and study plan

20 meter shuttle run test

Other

20 Meter Shuttle Run Test: Subjects run distance of 20 meters round trip. Running speed is monitored at certain intervals with help of a tape recorder that gives a signal. Subjects start running when they hear first beep and must reach other line(one foot must cross the line) by second beep. When they hear second signal, they return to starting line. The speed, which is slow at beginning, gradually increases every 10 seconds. The subject adjusts his/her pace so that he/she is on the other line at the second signal. If subject misses one signal and catches second signal, test continues. If subject misses two signals in row and doesn't reach line at other signal, test is terminated. At end of test, aerobic power values are calculated from VO2max estimation table in ml/kg/min according to number of sit-ups run. At end of test, marks obtained by athlete are calculated and VO2max value of subject is calculated in ml/kg/min from evaluation table.

Primary outcomes

  1. FVC

    Time frame: 1 hours

    A portable spirometer device will be used for the measurement of pulmonary function. During the test, the child will be placed in an upright sitting position with the pelvis in the most neutral position. Before the test, the child will be trained, demonstrated and explained what to do during the test. A different mouthpiece will be used for each child. The nose will be closed with the help of a clothespin and the measurement will be repeated 3 times and the best result will be taken into consideration. During the test, first inhale and exhale into the spirometer mouthpiece at normal tidal volume. Then a deep breath is taken and a rapid deep exhalation is requested. The exhalation period should last at least 6 s without interruption.

  2. FEV1

    Time frame: 1 hours

    A portable spirometer device will be used for the measurement of pulmonary function. During the test, the child will be placed in an upright sitting position with the pelvis in the most neutral position. Before the test, the child will be trained, demonstrated and explained what to do during the test. A different mouthpiece will be used for each child. The nose will be closed with the help of a clothespin and the measurement will be repeated 3 times and the best result will be taken into consideration. During the test, first inhale and exhale into the spirometer mouthpiece at normal tidal volume. Then a deep breath is taken and a rapid deep exhalation is requested. The exhalation period should last at least 6 s without interruption.

  3. FEV1/FVC

    Time frame: 1 hours

    A portable spirometer device will be used for the measurement of pulmonary function. During the test, the child will be placed in an upright sitting position with the pelvis in the most neutral position. Before the test, the child will be trained, demonstrated and explained what to do during the test. A different mouthpiece will be used for each child. The nose will be closed with the help of a clothespin and the measurement will be repeated 3 times and the best result will be taken into consideration. During the test, first inhale and exhale into the spirometer mouthpiece at normal tidal volume. Then a deep breath is taken and a rapid deep exhalation is requested. The exhalation period should last at least 6 s without interruption.

  4. FEF25

    Time frame: 1 hours

    A portable spirometer device will be used for the measurement of pulmonary function. During the test, the child will be placed in an upright sitting position with the pelvis in the most neutral position. Before the test, the child will be trained, demonstrated and explained what to do during the test. A different mouthpiece will be used for each child. The nose will be closed with the help of a clothespin and the measurement will be repeated 3 times and the best result will be taken into consideration. During the test, first inhale and exhale into the spirometer mouthpiece at normal tidal volume. Then a deep breath is taken and a rapid deep exhalation is requested. The exhalation period should last at least 6 s without interruption.

  5. FEF75

    Time frame: 1 hours

    A portable spirometer device will be used for the measurement of pulmonary function. During the test, the child will be placed in an upright sitting position with the pelvis in the most neutral position. Before the test, the child will be trained, demonstrated and explained what to do during the test. A different mouthpiece will be used for each child. The nose will be closed with the help of a clothespin and the measurement will be repeated 3 times and the best result will be taken into consideration. During the test, first inhale and exhale into the spirometer mouthpiece at normal tidal volume. Then a deep breath is taken and a rapid deep exhalation is requested. The exhalation period should last at least 6 s without interruption.

  6. FEF2575

    Time frame: 1 hours

    A portable spirometer device will be used for the measurement of pulmonary function. During the test, the child will be placed in an upright sitting position with the pelvis in the most neutral position. Before the test, the child will be trained, demonstrated and explained what to do during the test. A different mouthpiece will be used for each child. The nose will be closed with the help of a clothespin and the measurement will be repeated 3 times and the best result will be taken into consideration. During the test, first inhale and exhale into the spirometer mouthpiece at normal tidal volume. Then a deep breath is taken and a rapid deep exhalation is requested. The exhalation period should last at least 6 s without interruption.

  7. PEF

    Time frame: 1 hours

    A portable spirometer device will be used for the measurement of pulmonary function. During the test, the child will be placed in an upright sitting position with the pelvis in the most neutral position. Before the test, the child will be trained, demonstrated and explained what to do during the test. A different mouthpiece will be used for each child. The nose will be closed with the help of a clothespin and the measurement will be repeated 3 times and the best result will be taken into consideration. During the test, first inhale and exhale into the spirometer mouthpiece at normal tidal volume. Then a deep breath is taken and a rapid deep exhalation is requested. The exhalation period should last at least 6 s without interruption.

  8. SDNN (msn)

    Time frame: 1 hours

    HRV obtained by electrocardiography (ECG) recording is a method that provides information about sympatho-vagal balance, calculated on the basis of the variability of the intervals between heart beats. Recordings will be taken in a quiet and calm room in the supine position. A 3-way bipolar limb lead with remote bluetooth connection (poly-spectrum-8/ex) will be used for ECG recording. Electrodes will be appropriately attached to the wrists and ankles. Participants will be asked to remove any metal objects (coins, belts, watches, bracelets, phones, etc.) that may interfere with the ECG. Participants will be pre-informed not to move, talk, breathe normally and remain in a supine position during the recording. After 5 minutes of ECG recordings are taken, data on HRV parameters will be obtained with device-specific software.

  9. RMSSD (msn)

    Time frame: 1 hours

    HRV obtained by electrocardiography (ECG) recording is a method that provides information about sympatho-vagal balance, calculated on the basis of the variability of the intervals between heart beats. Recordings will be taken in a quiet and calm room in the supine position. A 3-way bipolar limb lead with remote bluetooth connection (poly-spectrum-8/ex) will be used for ECG recording. Electrodes will be appropriately attached to the wrists and ankles. Participants will be asked to remove any metal objects (coins, belts, watches, bracelets, phones, etc.) that may interfere with the ECG. Participants will be pre-informed not to move, talk, breathe normally and remain in a supine position during the recording. After 5 minutes of ECG recordings are taken, data on HRV parameters will be obtained with device-specific software.

  10. pNN50 (%)

    Time frame: 1 hours

    HRV obtained by electrocardiography (ECG) recording is a method that provides information about sympatho-vagal balance, calculated on the basis of the variability of the intervals between heart beats. Recordings will be taken in a quiet and calm room in the supine position. A 3-way bipolar limb lead with remote bluetooth connection (poly-spectrum-8/ex) will be used for ECG recording. Electrodes will be appropriately attached to the wrists and ankles. Participants will be asked to remove any metal objects (coins, belts, watches, bracelets, phones, etc.) that may interfere with the ECG. Participants will be pre-informed not to move, talk, breathe normally and remain in a supine position during the recording. After 5 minutes of ECG recordings are taken, data on HRV parameters will be obtained with device-specific software.

  11. TP (msn²)

    Time frame: 1 hours

    HRV obtained by electrocardiography (ECG) recording is a method that provides information about sympatho-vagal balance, calculated on the basis of the variability of the intervals between heart beats. Recordings will be taken in a quiet and calm room in the supine position. A 3-way bipolar limb lead with remote bluetooth connection (poly-spectrum-8/ex) will be used for ECG recording. Electrodes will be appropriately attached to the wrists and ankles. Participants will be asked to remove any metal objects (coins, belts, watches, bracelets, phones, etc.) that may interfere with the ECG. Participants will be pre-informed not to move, talk, breathe normally and remain in a supine position during the recording. After 5 minutes of ECG recordings are taken, data on HRV parameters will be obtained with device-specific software.

  12. LF (msn²), %LF, LFnorm

    Time frame: 1 hours

    HRV obtained by electrocardiography (ECG) recording is a method that provides information about sympatho-vagal balance, calculated on the basis of the variability of the intervals between heart beats. Recordings will be taken in a quiet and calm room in the supine position. A 3-way bipolar limb lead with remote bluetooth connection (poly-spectrum-8/ex) will be used for ECG recording. Electrodes will be appropriately attached to the wrists and ankles. Participants will be asked to remove any metal objects (coins, belts, watches, bracelets, phones, etc.) that may interfere with the ECG. Participants will be pre-informed not to move, talk, breathe normally and remain in a supine position during the recording. After 5 minutes of ECG recordings are taken, data on HRV parameters will be obtained with device-specific software.

  13. HF (msn²), %HF, HFnorm

    Time frame: 1 hours

    HRV obtained by electrocardiography (ECG) recording is a method that provides information about sympatho-vagal balance, calculated on the basis of the variability of the intervals between heart beats. Recordings will be taken in a quiet and calm room in the supine position. A 3-way bipolar limb lead with remote bluetooth connection (poly-spectrum-8/ex) will be used for ECG recording. Electrodes will be appropriately attached to the wrists and ankles. Participants will be asked to remove any metal objects (coins, belts, watches, bracelets, phones, etc.) that may interfere with the ECG. Participants will be pre-informed not to move, talk, breathe normally and remain in a supine position during the recording. After 5 minutes of ECG recordings are taken, data on HRV parameters will be obtained with device-specific software.

  14. LF/HF (msn²)

    Time frame: 1 hours

    HRV obtained by electrocardiography (ECG) recording is a method that provides information about sympatho-vagal balance, calculated on the basis of the variability of the intervals between heart beats. Recordings will be taken in a quiet and calm room in the supine position. A 3-way bipolar limb lead with remote bluetooth connection (poly-spectrum-8/ex) will be used for ECG recording. Electrodes will be appropriately attached to the wrists and ankles. Participants will be asked to remove any metal objects (coins, belts, watches, bracelets, phones, etc.) that may interfere with the ECG. Participants will be pre-informed not to move, talk, breathe normally and remain in a supine position during the recording. After 5 minutes of ECG recordings are taken, data on HRV parameters will be obtained with device-specific software.

  15. Systolic blood pressure

    Time frame: 1 hours

    Care will be taken to ensure that the person being measured is not cold, not in pain, not anxious, and not urinating or having a large bowel movement before the measurement. After the brachial artery is felt by hand, the cuff will be placed 2-3 cm above the antecubital fossa so that it is not too loose or tight. Care will be taken to ensure that the skin is not pinched, the palms are open and facing upwards. They will be warned not to make a fist. The cuff will be placed in the middle of the arm at the level of the heart so that the arm and heart are in the same horizontal plane. Blood pressure measurement is started with an automatic measuring device (F.Bosch, Germany). The device inflates the cuff enough to stop arterial blood flow. As the cuff deflates, it measures oscillations in the blood flow and then calculates the blood pressure using device-specific algorithms. The device also provides the heart rate in beats per minute.

  16. Diastolic blood pressure

    Time frame: 1 hours

    Care will be taken to ensure that the person being measured is not cold, not in pain, not anxious, and not urinating or having a large bowel movement before the measurement. After the brachial artery is felt by hand, the cuff will be placed 2-3 cm above the antecubital fossa so that it is not too loose or tight. Care will be taken to ensure that the skin is not pinched, the palms are open and facing upwards. They will be warned not to make a fist. The cuff will be placed in the middle of the arm at the level of the heart so that the arm and heart are in the same horizontal plane. Blood pressure measurement is started with an automatic measuring device (F.Bosch, Germany). The device inflates the cuff enough to stop arterial blood flow. As the cuff deflates, it measures oscillations in the blood flow and then calculates the blood pressure using device-specific algorithms. The device also provides the heart rate in beats per minute.

  17. Heart rate per minute

    Time frame: 1 hours

    Care will be taken to ensure that the person being measured is not cold, not in pain, not anxious, and not urinating or having a large bowel movement before the measurement. After the brachial artery is felt by hand, the cuff will be placed 2-3 cm above the antecubital fossa so that it is not too loose or tight. Care will be taken to ensure that the skin is not pinched, the palms are open and facing upwards. They will be warned not to make a fist. The cuff will be placed in the middle of the arm at the level of the heart so that the arm and heart are in the same horizontal plane. Blood pressure measurement is started with an automatic measuring device (F.Bosch, Germany). The device inflates the cuff enough to stop arterial blood flow. As the cuff deflates, it measures oscillations in the blood flow and then calculates the blood pressure using device-specific algorithms. The device also provides the heart rate in beats per minute.

Sponsors and collaborators

Lead sponsor

Inonu University

Other

Registry information

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Aug 12, 2024
Registry last updated
Jul 17, 2025

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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