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Completed

NCT Number: NCT07702370

Functional Movement, Balance, and Strength in Professional and Amateur Soccer Players

This observational comparative study aims to evaluate differences in functional movement quality, dynamic balance, lower extremity muscle strength, and jumping performance between professional and amateur male soccer players. A total of 144 licensed soccer players (72 professional and 72 amateur) will undergo standardized assessments, including the Functional Movement Screen (FMS), Y-Balance Test (YBT), countermovement jump (CMJ), vertical jump (VJ), one-repetition maximum (1RM) strength tests, and eccentric hamstring strength assessment using the NordBord system. The findings are expected to improve understanding of how competitive level influences physical performance characteristics and may contribute to the development of evidence-based training, injury prevention, and athlete development strategies.

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Key information

Conditions

Athletic Performance Functional Movement Muscle Strength

Age range

18 year–35 year

Sex eligibility

Male

Study type

Observational

Primary location

Istanbul Gelisim University

Istanbul, 34720, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Male licensed soccer players.
  • Professional or amateur soccer players actively competing during the study period.
  • Regular participation in team training (4-5 sessions per week) and official competitions.
  • Ability to complete all physical performance assessments.
  • Provided written informed consent before participation.

Exclusion criteria

  • Current musculoskeletal injury or pain affecting performance.
  • History of lower-extremity injury preventing full participation in testing.
  • Neurological, cardiovascular, or other medical conditions limiting physical performance.
  • Inability or unwillingness to complete all assessment procedures.
  • Withdrawal of informed consent.

Treatment and study plan

Physical Performance Assessment

Other

Standardized physical performance assessment including the Functional Movement Screen (FMS), Y-Balance Test (YBT), countermovement jump (CMJ), vertical jump (VJ), one-repetition maximum (1RM) strength tests, and eccentric hamstring strength assessment using the NordBord system. No therapeutic or experimental intervention was administered.

Primary outcomes

  1. Functional Movement Screen (FMS) Total Score

    Time frame: Baseline (Day 1)

    The total Functional Movement Screen (FMS) score was used to evaluate overall functional movement quality and identify movement limitations in professional and amateur soccer players.

Secondary outcomes

  1. Y-Balance Test (YBT) Performance

    Time frame: Baseline (Day 1)

    Dynamic balance performance assessed using normalized reach distances in the anterior, posteromedial, and posterolateral directions.

  2. Countermovement Jump (CMJ) Height

    Time frame: Baseline (Day 1)

    Lower-extremity explosive power measured as countermovement jump height using the Witty Microgate system.

  3. Vertical Jump (VJ) Height

    Time frame: Baseline (Day 1)

    Vertical jump performance assessed using the Witty Microgate system.

  4. One-Repetition Maximum (1RM) Strength

    Time frame: Baseline (Day 1)

    Maximum lower-extremity strength assessed using one-repetition maximum squat and deadlift tests.

  5. Eccentric Hamstring Strength

    Time frame: Baseline (Day 1)

    Maximum eccentric hamstring force and inter-limb asymmetry assessed using the NordBord system.

  6. Individual Functional Movement Screen Components

    Time frame: Baseline (Day 1)

    Scores for the seven Functional Movement Screen subtests, including deep squat, hurdle step, inline lunge, shoulder mobility, active straight-leg raise, trunk stability push-up, and rotary stability.

Sponsors and collaborators

Lead sponsor

Istanbul Gelisim University

Other

Registry information

Official study title

Comparison of Functional Movement, Dynamic Balance, and Lower Extremity Muscle Strength Between Professional and Amateur Soccer Players

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Jul 14, 2026
Registry last updated
Jul 14, 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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