Hamstring Injury, Sprint Performance
Conditions
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).
Interventions
OTHERRepeated-sprint test
6x30-meter sprint interspersed with 90-s rest
Sponsors
Hvidovre University Hospital
Study design
Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
MALE
Age
18 Years to 35 Years
Healthy volunteers
No
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Theoretical maximal force | Baseline | Measured using the MySprint Application during a repeated-sprint test consisting of 6x30-m sprints. The outcome measure is exploratory. |
| Theoretical maximal velocity | Baseline | Measured using the MySprint Application during a repeated-sprint test consisting of 6x30-m sprints. The outcome measure is exploratory. |
| Theoritical maximal power output | Baseline | Measured using the MySprint Application during a repeated-sprint test consisting of 6x30-m sprints. The outcome measure is exploratory. |
| Slope of the linear decrease on ratio of force as sprint velocity increases | Baseline | Measured using the MySprint Application during a repeated-sprint test consisting of 6x30-m sprints. The outcome measure is exploratory. |
Countries
Denmark
Outcome results
None listed