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Completed

NCT Number: NCT07755358

Effects of an Eight-Week Small-Sided Games Training Program on Aerobic Endurance and Passing Performance in Adolescent Soccer Players

Soccer requires players to combine physical fitness with technical skills throughout a match. Small-sided games (SSG) are modified soccer training sessions played with fewer players and reduced pitch dimensions. These training formats are widely used because they simulate match situations while providing high physical and technical demands.

The purpose of this randomized controlled trial was to investigate whether an eight-week SSG training program improves aerobic endurance and passing performance in adolescent male soccer players. Eighteen licensed youth soccer players were randomly assigned to either an SSG training group or a control group. Both groups continued their regular soccer training, while the SSG group additionally performed structured small-sided game sessions three times per week for eight weeks.

Aerobic endurance was evaluated using the Yo-Yo Intermittent Recovery Test Level 1 (Yo-Yo IR1), and passing performance was assessed using the Loughborough Soccer Passing Test (LSPT). These measurements were obtained before and after the intervention.

The primary objective of the study was to compare changes in aerobic endurance and passing performance between the SSG and control groups. It was hypothesized that participation in the structured SSG program would result in greater improvements in both outcomes compared with regular soccer training alone.

The findings of this study are expected to provide evidence supporting the use of structured small-sided games as an effective and time-efficient training strategy for improving both physical fitness and technical performance in adolescent soccer players.

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Key information

Age range

17 year–18 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Istanbul Gelisim University

Istanbul, 34290, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Male soccer players aged 17 to 18 years.
  • Licensed amateur soccer players with at least five years of organized soccer experience.
  • Regular participation in team training sessions.
  • No serious musculoskeletal injury within the previous six months.
  • No chronic neurological, cardiovascular, or musculoskeletal conditions that could affect participation or performance.
  • Provided written informed consent (and parental/legal guardian consent where applicable).

Exclusion criteria

  • Serious musculoskeletal injury during the study period.
  • Absence from more than two scheduled training sessions.
  • Voluntary withdrawal from the study at any time.
  • Failure to complete the pre-intervention or post-intervention outcome assessments.
  • Any medical condition preventing safe participation in high-intensity soccer training.

Treatment and study plan

Small-Sided Games Training

Behavioral

Participants performed structured small-sided games (SSG) training three times per week for eight weeks in addition to their regular soccer training. The intervention included 2v2, 3v3, and 4v4 game formats with progressively modified pitch dimensions and tactical constraints to improve aerobic endurance and passing performance.

Regular Soccer Training

Behavioral

Participants continued their routine soccer training program without exposure to structured small-sided games during the study period.

Primary outcomes

  1. Aerobic Endurance (Yo-Yo Intermittent Recovery Test Level 1 Distance)

    Time frame: Baseline and Week 8

    Aerobic endurance was assessed using the Yo-Yo Intermittent Recovery Test Level 1 (Yo-Yo IR1). The primary outcome was the total distance covered (meters) during the test. Higher values indicate better aerobic endurance.

  2. Passing Performance (Loughborough Soccer Passing Test)

    Time frame: Baseline and Week 8

    Passing performance was evaluated using the Loughborough Soccer Passing Test (LSPT). The primary outcome was the total test completion time (seconds), including penalty time. Lower values indicate better passing performance.

Sponsors and collaborators

Lead sponsor

Istanbul Gelisim University

Other

Registry information

Official study title

Effects of an Eight-Week Small-Sided Games Training Program on Aerobic Endurance and Passing Performance in Adolescent Soccer Players: A Randomized Controlled Trial

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Aug 10, 2026
Registry last updated
Aug 13, 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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