Sprint Performance in Football Players With a Previous Hamstring Injury

NCT03306511 | Completed DMC

• 1 other identifier: SPRINT2017
• Study Type: observational
• Target: 44
• Locations: 1 country
• Sites: 1

Brief Summary

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).

Conditions

Sprint Performance; Hamstring Injury

Outcome Measures

Primary Outcomes (4)

• Theoretical maximal force

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

  Baseline

• Theoretical maximal velocity

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

  Baseline

• Theoritical maximal power output

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

  Baseline

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

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

  Baseline

Study Arms (2)

Case

Football players with a previous self-reported hamstring strain injury in the preceding 12 months

Other: Repeated-sprint test

Control

Football players without a previous self-reported hamstring strain injury in the preceding 12 months

Other: Repeated-sprint test

Interventions

Repeated-sprint test OTHER

6x30-meter sprint interspersed with 90-s rest

Case; Control

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: male
• Healthy Volunteers: No
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Danish competitive football players

You may qualify if:

• Able to participate fully in regular football training and matches

You may not qualify if:

• 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
• 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.
• 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

Sponsors & Collaborators

• Hvidovre University Hospital: lead

Study Sites (1)

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

Copenhagen, Danmark, 1904, Denmark

Location

Study Officials

• Lasse Ishøi

  Hvidovre University Hospital

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: MSc

Study Record Dates

• First Submitted: October 5, 2017
• First Posted: October 11, 2017
• Study Start: October 1, 2017
• Primary Completion: December 31, 2017
• Study Completion: December 31, 2017
• Last Updated: June 13, 2018

Record last verified: 2018-06

Locations

DK (1)