Physical PerformanceNCT04456374
Performance Testing in Young Soccer Players
An observational study of Physical Performance, run by University of Thessaly at 1 site in Greece.
Trial summary
The aim of this study is to investigate physiological characteristics, body composition and performance indicators among youth soccer players of four age categories (U-12, U-14, U-16, and U-18). Read more about this study
- Who is it for?
- Ages 11 to 18 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Physical Performance
- What is being tested?
- Performance testing
- How many people
- 120 participants
- Where
- 1 siteGreece
- Study dates
- 5 Aug 2020to 10 Sep 2020
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 11 to 18 years
- Men only
- Healthy volunteers accepted
- Child, Adult
Study population: Youth soccer players (aged 11-18 years) participating in regular soccer practice and competition with a training age of ≥ 3 years.
Who may be able to join
- Aged between 11 and 12 years
- Active soccer players participating in regular soccer practice and competition
- Training age ≥ 3 years
- Free of chronic diseases
- Free of musculoskeletal injury
Who cannot join
- Musculoskeletal injury
- Chronic disease
- Training age ≤ 2 years
Trial locations and contacts
1 site in 1 country.
Greece1 site
University of Thessaly, School of Physical Education and Sports Science
Trikala, 42100
Athanasios Z Jamurtas, Prof, +302431047054, ajamurt@pe.uth.gr
Ioannis G Fatouros, Prof, +302431047047, ifatouros@pe.uth.gr
About this study
Official title: Evaluation of Soccer-specific Performance and Body Composition in Youth Soccer Players of Different Age Groups
The aim of this study is to investigate physiological characteristics, body composition and performance indicators among youth soccer players of four age categories (U-12, U-14, U-16, and U-18). Participants will undergo assessment of their body weight, body height and percent of body fat as well as performance testing including flexibility, strength, vertical jump, speed, repeated sprint ability, agility, dribbling and endurance.
Read the detailed description
This study aims at investigating anthropometric, body composition and performance indicators among male youth soccer players. The study will be conducted prior to the preparation period. Initially, participants and their parents (for those under 18 years) will be informed about the benefits, risks and discomforts associated with the study and will provide a written consent. Participants will be instructed to refrain from strenuous exercise for at least 48 hours prior to testing and they will be also asked to consume their normal diet. Prior to testing all participants will be familiarized with testing procedures and specific test. Body weight will be measured on a seca beam balance. Participants' height will be measured by using a fixed stadiometer and the percent body fat will be calculated with bioelectrical impedance analysis. Flexibility will be assessed by using the sit and reach test and the lower body explosive strength will be determined through vertical jump testing (squat jump and counter movement jump without arm swing). Knee flexor and extensor strength will be assessed on an isokinetic dynamometer. Sprint performance will be assessed from a standing start over by infrared photocells with participants running 10m and 30m as fast as they can. The repeated sprint ability will be tested by using linear sprint test including 5 maximum sprints of 30 meters with a 25-second recovery period in-between. Maximal oxygen consumption (VO2max) will be determined by open-circuit spirometry via breath-by-breath analysis during a graded exercise test to exhaustion on a treadmill. Furthermore, participants will be evaluated in agility by using the short dribbling test and the ability to recover after repeated intense exercise through the YO-YO Intermittent Recovery test 1 (only for u-16 and U-18 groups).
- Conditions
- Physical Performance
- Being tested
- Performance testing
- Keywords
- soccer, performance, youth
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Performance testingOther
Soccer-specific performance will be evaluated by measuring flexibility, jumping ability, maximum speed, repeated spring ability, agility and endurance.
| Study group | Role | What they receive |
|---|---|---|
| Under-12 (U12) players | Not described Receives: Other: Performance testing | |
| Under-14 (U14) players | Not described Receives: Other: Performance testing | |
| Under-16 (U16) players | Not described Receives: Other: Performance testing | |
| Under-18 (U18) players | Not described Receives: Other: Performance testing |
What is being measured
The primary outcome is the main question the study is designed to answer.
Flexibility
Flexibility will be assessed by using the sit-and-reach test
Measured: At baseline
Jumping ability
Jumping ability will be assessed by measuring the vertical jumping performance using two different techniques: i) countermovement and ii) squat jump.
Measured: At baseline
Maximum speed
Maximum speed will be assessed over 10 m and 30 m by using light cells
Measured: At baseline
Repeated sprint ability
Repeated sprint ability will be assessed by performing five 30-m sprints with 25 seconds recovery period in-between, and using light cells.
Measured: At baseline
Agility
The ability to change direction while dribbling the ball (termed agility) will be assessed by using the short dribbling test (performed according to standard procedures).
Measured: At baseline
Endurance
Endurance will be assessed by using the Yo-Yo Intermittent Recovery test level 1
Measured: At baseline
Maximal oxygen consumption (VO2max)
Maximal oxygen consumption will be measured by open-circuit spirometry via breath-by-breath analysis during a graded exercise test to exhaustion on a treadmill, using automated pulmonary gas exchange system.
Measured: At baseline
Knee flexor and extensor strength
Concentric and eccentric peak torque of knee flexors and extensors in both limbs (dominant and non-dominant) will be assessed on an isokinetic dynamometer
Measured: At baseline
Secondary outcomes (3)
Body height
Body height will be measured on a beam balance with stadiometer.
Measured: At baseline
Body weight
Body weight will be measured on a beam balance with stadiometer.
Measured: At baseline
Body composition
Body fat and fat-free mass will be estimated by using bioelectrical impedance.
Measured: At baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Jul 2020
- Study start5 Aug 2020 (estimated)
- Primary completion30 Aug 2020 (estimated)
- Study completion10 Sep 2020 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Physical PerformanceStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 120 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Thessaly
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ioannis G. Fatouros, University of Thessaly
- Investigators
- Athanasios Poulios, PhD, Principal investigator, University of Thessaly
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04456374
- Sponsor's protocol ID
- YOUTH SOCCER STUDY-UTH-2020
- Status last verified
- Jun 2020
- First submitted
- 24 Jun 2020
- Last updated
- 2 Jul 2020
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 2 Jul 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Soccer-specific Performance and Body Composition in Youth Soccer Players of Different Age Groups
- ClinicalTrials.gov ID
- NCT04456374
- Acronym / sponsor ID
- YOUTH SOCCER STUDY-UTH-2020
- Conditions
- Physical Performance
- Keywords
- soccer, performance, youth
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 120 participants (estimated)
- Lead sponsor
- University of ThessalyUniversity, hospital or other
- Study start
- 5 Aug 2020 (estimated)
- Primary completion
- 30 Aug 2020 (estimated)
- Study completion
- 10 Sep 2020 (estimated)
- First posted
- 2 Jul 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study is to investigate physiological characteristics, body composition and performance indicators among youth soccer players of four age categories (U-12, U-14, U-16, and U-18). Participants will undergo assessment of their body weight, body height and percent of body fat as well as performance testing including flexibility, strength, vertical jump, speed, repeated sprint ability, agility, dribbling and endurance.
Detailed description
This study aims at investigating anthropometric, body composition and performance indicators among male youth soccer players. The study will be conducted prior to the preparation period. Initially, participants and their parents (for those under 18 years) will be informed about the benefits, risks and discomforts associated with the study and will provide a written consent. Participants will be instructed to refrain from strenuous exercise for at least 48 hours prior to testing and they will be also asked to consume their normal diet. Prior to testing all participants will be familiarized with testing procedures and specific test. Body weight will be measured on a seca beam balance. Participants' height will be measured by using a fixed stadiometer and the percent body fat will be calculated with bioelectrical impedance analysis. Flexibility will be assessed by using the sit and reach test and the lower body explosive strength will be determined through vertical jump testing (squat jump and counter movement jump without arm swing). Knee flexor and extensor strength will be assessed on an isokinetic dynamometer. Sprint performance will be assessed from a standing start over by infrared photocells with participants running 10m and 30m as fast as they can. The repeated sprint ability will be tested by using linear sprint test including 5 maximum sprints of 30 meters with a 25-second recovery period in-between. Maximal oxygen consumption (VO2max) will be determined by open-circuit spirometry via breath-by-breath analysis during a graded exercise test to exhaustion on a treadmill. Furthermore, participants will be evaluated in agility by using the short dribbling test and the ability to recover after repeated intense exercise through the YO-YO Intermittent Recovery test 1 (only for u-16 and U-18 groups).
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Under-12 (U12) players | – | Other: Performance testing |
| Under-14 (U14) players | – | Other: Performance testing |
| Under-16 (U16) players | – | Other: Performance testing |
| Under-18 (U18) players | – | Other: Performance testing |
Who may qualify
- Ages
- 11 to 18 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- Youth soccer players (aged 11-18 years) participating in regular soccer practice and competition with a training age of ≥ 3 years.
Key inclusion criteria (5 listed)
- Aged between 11 and 12 years
- Active soccer players participating in regular soccer practice and competition
- Training age ≥ 3 years
- Free of chronic diseases
- Free of musculoskeletal injury
Key exclusion criteria (3 listed)
- Musculoskeletal injury
- Chronic disease
- Training age ≤ 2 years
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Performance testingSoccer-specific performance will be evaluated by measuring flexibility, jumping ability, maximum speed, repeated spring ability, agility and endurance. | Other | Under-12 (U12) players, Under-14 (U14) players, Under-16 (U16) players, Under-18 (U18) players |
Primary outcome
Flexibility
Time frame: At baseline
Flexibility will be assessed by using the sit-and-reach test
Jumping ability
Time frame: At baseline
Jumping ability will be assessed by measuring the vertical jumping performance using two different techniques: i) countermovement and ii) squat jump.
Maximum speed
Time frame: At baseline
Maximum speed will be assessed over 10 m and 30 m by using light cells
Repeated sprint ability
Time frame: At baseline
Repeated sprint ability will be assessed by performing five 30-m sprints with 25 seconds recovery period in-between, and using light cells.
Agility
Time frame: At baseline
The ability to change direction while dribbling the ball (termed agility) will be assessed by using the short dribbling test (performed according to standard procedures).
Endurance
Time frame: At baseline
Endurance will be assessed by using the Yo-Yo Intermittent Recovery test level 1
Maximal oxygen consumption (VO2max)
Time frame: At baseline
Maximal oxygen consumption will be measured by open-circuit spirometry via breath-by-breath analysis during a graded exercise test to exhaustion on a treadmill, using automated pulmonary gas exchange system.
Knee flexor and extensor strength
Time frame: At baseline
Concentric and eccentric peak torque of knee flexors and extensors in both limbs (dominant and non-dominant) will be assessed on an isokinetic dynamometer
3 secondary outcomes
Body height
Time frame: At baseline
Body weight
Time frame: At baseline
Body composition
Time frame: At baseline
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Jul 2020.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Athanasios Poulios, PhD principal investigator
University of Thessaly
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Physical Performance, run by University of Thessaly at 1 site in Greece.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 2 Jul 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Greece. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Ioannis G Fatouros, Prof (+30 24310 47047, ifatouros@pe.uth.gr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Flexibility (time frame: At baseline). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jul 2020.