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Soccer vs futsal: how the body fires muscles after hamstring injury

NCT ID NCT07831915

NEW Knowledge-focused Sponsor: Universidad de Extremadura Source: ClinicalTrials.gov ↗

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Cancelled before anyone took part.

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When the status isn't known

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Status unknown
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First seen Sep 21, 2026 · Last updated Sep 21, 2026

Summary

Researchers at Universidad de Extremadura are studying how two muscles, the gluteus maximus and biceps femoris, activate during the Nordic hamstring exercise in male soccer players who have had a hamstring injury. The study compares 11-a-side soccer players with futsal players. All participants perform the same exercise while surface electrodes record muscle activity before, during, and right after the movement. The goal is to see whether muscle activation patterns differ between the two soccer disciplines.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If researchers find differences between futsal and 11-a-side players, that could help coaches tailor hamstring injury prevention programs to each sport.
What could go wrong
This small observational study of 16 players cannot prove cause and effect, and its findings may not apply to other athletes or age groups.

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Study facts

What this study's own registry entry says, in plain language.

Participants

16 people

The number who actually took part.

Started

Jan 2026

Finished

Apr 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Adult male 11-a-side soccer and futsal players recruited by convenience sampling from teams in Badajoz, Spain. Participants have a history of physician-diagnosed type 2b hamstring muscle injury within the previous 12 months, with no active injury during the month immediately before assessment.

Ages

18 years and older

Sex

Male participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Male soccer or futsal player aged 18 years or older. * Regular participation in 11-a-side soccer or futsal. * Previous physician-diagnosed hamstring muscle injury classified as type 2b according to the Munich Consensus during the previous 12 months, but not within the month preceding assessment. * Absence of current lower-limb pain or active musculoskeletal injury at the time of assessment. * Ability to understand and perform the study procedures. * Voluntary agreement to participate and provision of written informed consent. Exclusion Criteria: * Participation in an organized hamstring stretching program that could interfere with the assessment. * Current pain, musculoskeletal injury, or recent surgery involving the lumbar spine, abdominal region, or lower limbs. * Evidence or history of a neurological disorder affecting lower-limb function. * Skin lesions or dermatological conditions preventing placement of surface electromyography electrodes. * Moderate-to-vigorous physical activity within the 72 hours preceding testing.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Hamstring muscle injury SOCCER

Contacts and locations

Locations

  • University of Extremadura

    Badajoz, Badajoz, 06006, Spain

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