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Completed

NCT Number: NCT07622511

Comparative Effects of Sprint Interval Training and Small-Sided Games on Cardiopulmonary Threshold Responses in Football Players

This study aimed to compare the effects of sprint interval training (SIT) and small-sided games (SSG) on cardiopulmonary threshold responses in football players. Participants were randomly assigned to SIT, SSG, or control groups and completed an 8-week training intervention. Cardiopulmonary exercise tests were performed before and after the intervention to evaluate aerobic and anaerobic threshold-related parameters.

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Key information

Conditions

Football Players

Age range

16 year–17 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Istanbul Gelisim University Faculty of Sport Sciences

Istanbul, Turkey (Türkiye)

About this study

The purpose of this study is to investigate and compare the effects of sprint interval training and small-sided games on cardiopulmonary threshold responses in football players. Participants will undergo pre- and post-intervention cardiopulmonary exercise testing following an 8-week training program. Variables related to aerobic threshold, anaerobic threshold, and exercise performance will be evaluated between groups.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Male football players aged 16-17 years
  • Regular participation in football training
  • Free from injury or illness during the study period
  • Voluntary participation with informed consent

Exclusion criteria

  • Current musculoskeletal injury
  • Cardiovascular or respiratory disease
  • Failure to complete the intervention program
  • Use of medications affecting exercise performance

Treatment and study plan

Sprint Interval Training

Behavioral

Participants continued regular football training without additional intervention.

Other names: SIT

Small-Sided Games

Behavioral

Small-sided game training sessions performed during the 8-week intervention period.

Other names: SSG

Control

Other

Participants continued regular football training without additional intervention.

Primary outcomes

  1. Oxygen Uptake at Anaerobic Threshold (VO₂)

    Time frame: Baseline and Week 8

    Assessment of oxygen uptake (VO₂, mL·kg-¹·min-¹) measured at the anaerobic threshold during cardiopulmonary exercise testing.

  2. Oxygen Uptake at Respiratory Compensation Point (VO₂)

    Time frame: Baseline and Week 8

    Assessment of oxygen uptake (VO₂, mL·kg-¹·min-¹) measured at the respiratory compensation point during cardiopulmonary exercise testing.

Secondary outcomes

  1. Maximal Oxygen Uptake (VO₂max)

    Time frame: Baseline and Week 8

    Assessment of maximal oxygen uptake (VO₂max) during cardiopulmonary exercise testing.

Sponsors and collaborators

Lead sponsor

Istanbul Gelisim University

Other

Registry information

Acronym: SIT-SSG-CPET

Important dates

Study start
2024
Primary completion
2024
Study completion
2024
First posted
Jun 3, 2026
Registry last updated
Jun 3, 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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