The relationship between ACL injuries and physical fitness in young competitive ski racers: a 10-year longitudinal study
(Der Zusammenhang zwischen ACL Verletzungen und körperlicher Fitness bei jungen Skirennfahrern: eine 10-jährige Längsschnittstudie)
Background: Epidemiological studies have shown a high incidence of anterior cruciate ligament (ACL) injuries among competitive alpine skiers. Little is known regarding modifiable risk factors in young skiers. There are still uncertainties in gender-related risk factors.
Objective: The purpose of this study was to determine the relationship between ACL injuries and internal risk factors.
Methods: Retrospective data analyses were performed based on a group of 175 female and 195 male alpine ski racers between the ages of 14 and 19 years. The athletes underwent physical testing annually from 1996 to 2006. Z score transformations normalised the age groups. Multivariate binary logistic regressions were calculated for men and women separately to detect significant predictors of ACL ruptures. t Tests were computed to reveal the differences in test scores between injured and non-injured athletes.
Results: A total of 57 (15%) ACL injuries occurred. The female-male risk ratio (RR) was higher in females (2.3, 95% CI 1.3 to 4.2). Z scores for relative leg force, ratio of absolute core flexion to extension force, relative core strength and reactive strength index were predictive variables for men. Z scores of all of these predictive variables except relative leg force were higher in the non-injured group. The ratios of absolute flexion to extension force and absolute core strength were predictive covariates for women. Z scores for absolute core strength were higher in the non-injured group.
Conclusions: The risk of ACL injury was greater in female athletes. The findings suggest that core strength is a predominant critical factor for ACL injuries in young ski racers.
© Copyright 2012 British Journal of Sports Medicine. BMJ Publishing Group Ltd of the BMA. Alle Rechte vorbehalten.
Schlagworte: | Geschlecht Test Bindegewebe Verletzung alpiner Skisport Nachwuchsleistungssport Kind Kraft |
---|---|
Notationen: | Biowissenschaften und Sportmedizin Kraft-Schnellkraft-Sportarten |
DOI: | 10.1136/bjsports-2012-091050 |
Veröffentlicht in: | British Journal of Sports Medicine |
Veröffentlicht: |
2012
|
Jahrgang: | 46 |
Heft: | 15 |
Seiten: | 1065-1071 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |