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Completed

NCT Number: NCT03306511

Sprint Performance in Football Players With a Previous Hamstring Injury

Few studies indicate that sprint performance may be impaired in football players with a previous hamstring strain injury. This exploratory cross-sectional study aim to compare sprint performance between football players with and without a previous hamstring strain injury. The findings may elucidate potential indications of insufficient rehabilitation following a hamstring strain injury.

Sprint performance data will be collected using the MySprint Iphone Application.

Due to pragmatic reasons and the exploratory nature of this study the aim is to include players on a team level.

Based on the prevalence of hamstring strain injuries the expected number of cases to be included are 10-20 football players with a previous hamstring strain injury, and a corresponding 80-90 number of healthy controls.

No outcomes will be weighted (flat outcome structure).

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Key information

Conditions

Sprint Performance Hamstring Injury

Age range

18 year–35 year

Sex eligibility

Male

Study type

Observational

Primary location

Testing will be conducted in the facilities of the included football clubs in Copenhagen

Copenhagen, Danmark, 1904, Denmark

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

Controls:

  • Able to participate fully in regular football training and matches

Exclusion criteria

Controls:

  • Self-reported hamstring strain injury resulting in loss of regular football training sessions or football matches in the preceding 12 months.
  • Longstanding injury (>6 weeks) in the lower extremities or trunk in the preceding 12 months.
  • Any pain in the lower extremity, pelvis, or spine during testing

Inclusion criteria

Cases:

  • Able to participate fully in regular football training and matches
  • Self-reported hamstring strain injury resulting in loss of regular football training sessions or football matches in the preceding 12 months.

Exclusion criteria

Cases:

  • Longstanding injury (>6 weeks) in the lower extremities (except hamstring strain injury) or trunk in the preceding 12 months.
  • Any pain in the lower extremity, pelvis, or spine during testing

Treatment and study plan

Repeated-sprint test

Other

6x30-meter sprint interspersed with 90-s rest

Primary outcomes

  1. Theoretical maximal force

    Time frame: Baseline

    Measured using the MySprint Application during a repeated-sprint test consisting of 6x30-m sprints. The outcome measure is exploratory.

  2. Theoretical maximal velocity

    Time frame: Baseline

    Measured using the MySprint Application during a repeated-sprint test consisting of 6x30-m sprints. The outcome measure is exploratory.

  3. Theoritical maximal power output

    Time frame: Baseline

    Measured using the MySprint Application during a repeated-sprint test consisting of 6x30-m sprints. The outcome measure is exploratory.

  4. Slope of the linear decrease on ratio of force as sprint velocity increases

    Time frame: Baseline

    Measured using the MySprint Application during a repeated-sprint test consisting of 6x30-m sprints. The outcome measure is exploratory.

Sponsors and collaborators

Lead sponsor

Hvidovre University Hospital

Other

Registry information

Official study title

Sprint Performance in Football Players With a Previous Hamstring Injury Compared to Healthy Controls: An Exploratory Cross-sectional Study

Important dates

Study start
2017
Primary completion
2017
Study completion
2017
First posted
Oct 11, 2017
Registry last updated
Jun 13, 2018

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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