Psychological, Hormonal, and Physical Performance Profiles in Adolescent Male Football Players: An Exploratory Cross-Sectional Study

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 15 years
• Men only
• No healthy volunteers
• Child

Study population: The study population consisted of adolescent male football players aged 12-14 years who actively played for a single U-14 football team in Bingöl, Türkiye, and participated in regular football training. Twenty-one players voluntarily participated in the study.

Trial locations and contacts

1 site in 1 country.

About this study

Official title: PSYCHOLOGİCAL, HORMONAL, AND PHYSİCAL PERFORMANCE PROFİLES İN ADOLESCENT MALE FOOTBALL PLAYERS: AN EXPLORATORY CROSS-SECTİONAL STUDY

Conditions

Adolescence, Body Composition, Physical Performance, Mental Toughness

Keywords

anaerobic performance, football experience, hormon, well-being

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

What is being measured

The primary outcome is the main question the study is designed to answer.

1. Hormonal Markers, Psychological Scores, Physical Performance, and Body Composition

   Serum total testosterone, free triiodothyronine (FT3), and free thyroxine (FT4) were measured by immunoassay in a 5 mL venous blood sample collected after at least 12 hours of fasting. Psychological well-being was assessed using a 23-item scale (23-115 points), and mental toughness using an eight-item index (mean score: 1-7); higher scores indicate better well-being or toughness. Countermovement jump height was measured using a jump mat, standing long jump distance using a tape, 10 and 20 m sprint and T-test times using electronic timing, and kick speed using radar. The best of two trials was retained; higher jump and kick speed values and shorter times indicate better performance. Body weight, BMI, body fat percentage, and skeletal muscle percentage were assessed using bioelectrical impedance, and height using a stadiometer.

   Measured: Assessed once per participant across four assessment sessions spaced 48 hours apart, over approximately 6 days from the first to the final session.

2. - Total testosterone, FT3, and FT4 levels - Psychological well-being in sport and mental toughness scores - Jump, sprint, change-of-direction, and kick speed performance - Body composition measures used in the analysis

   Serum total testosterone, free triiodothyronine (FT3), and free thyroxine (FT4) were measured by immunoassay in a 5 mL venous blood sample collected after at least 12 hours of fasting. Psychological well-being was assessed using a 23-item scale (23-115 points), and mental toughness using an eight-item index (mean score: 1-7); higher scores indicate better well-being or toughness. Countermovement jump height was measured using a jump mat, standing long jump distance using a tape, 10 and 20 m sprint and T-test times using electronic timing, and kick speed using radar. The best of two trials was retained; higher jump and kick speed values and shorter times indicate better performance. Body weight, BMI, body fat percentage, and skeletal muscle percentage were assessed using bioelectrical impedance, and height using a stadiometer.

   Measured: Assessed once per participant across four assessment sessions spaced 48 hours apart, over approximately 6 days from the first to the final session.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

1. First posted23 Oct 2026
2. Study start5 Mar 2026
3. Primary completion9 Jun 2026
4. Study completion9 Jul 2026

Resources

• Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
• Other trials for AdolescenceStudies 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.