title: Baseline Time to Stabilization Identifies Anterior Cruciate Ligament Rupture Risk in Collegiate Athletes.
abstract: There is a need for successful screening methods to identify athletes at increased risk of anterior cruciate ligament (ACL) injury. Previous research showed that collegiate athletes with ACL tears demonstrated slower time to stabilization during jump landing after reconstruction.
  
  
  
  Collegiate athletes with baseline deficiencies in time to stabilization are at increased risk of subsequent ACL rupture.
  
  
  
  Case-control study; Level of evidence, 3.
  
  
  
  A total of 278 National Collegiate Athletic Association Division I college athletes (166 men, 112 women; mean age, 18.5 years; height, 178.8 cm; mass, 79.9 kg) in the high-risk sports of men's football; women's volleyball and field hockey; and men's and women's lacrosse, basketball, and soccer were measured to obtain baseline time to stabilization for backward, forward, medial, and lateral single-legged jump landing tasks. Athletes were followed for ACL rupture over a 4-year period. Independent t tests were used to evaluate differences in time to stabilization for each jump landing task between athletes with subsequent ACL rupture and uninjured athletes. Logistic regression models were used to assess time to stabilization as a predictor for ACL rupture.
  
  
  
  Nine athletes sustained noncontact ACL ruptures (5 men, 4 women). These 9 athletes took significantly longer to stabilize compared with uninjured athletes during baseline backward jump landing (1.58 ± 0.39 and 1.09 ± 0.52 seconds, respectively; P = .0052). The odds of ACL rupture increased 3-fold (odds ratio, 2.95; 95% CI, 1.28-6.77) for every second increase in backward time to stabilization observed between injured and uninjured athletes.
  
  
  
  Collegiate athletes with slower baseline backward time to stabilization were at increased risk of ACL rupture.
authors.affiliation: Department of Sports Medicine, Crozer-Keystone Health System, Springfield, Pennsylvania, USA kevin.duprey@crozer.org.
authors.forename: Kevin M
authors.initials: KM
authors.lastname: DuPrey
authors.affiliation: Department of Exercise and Sport Science, University of Evansville, Evansville, Indiana, USA Department of Kinesiology and Applied Physiology, University of Delaware, Newark, Delaware, USA.
authors.forename: Kathy
authors.initials: K
authors.lastname: Liu
authors.affiliation: Department of Family and Community Health, Center for Public Health Initiatives, and Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
authors.forename: Peter F
authors.initials: PF
authors.lastname: Cronholm
authors.affiliation: Department of Student Health Services, University of Delaware, Newark, Delaware, USA.
authors.forename: Andrew S
authors.initials: AS
authors.lastname: Reisman
authors.affiliation: Department of Sports Medicine, Crozer-Keystone Health System, Springfield, Pennsylvania, USA.
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Collina
authors.affiliation: Department of Sports Medicine, Crozer-Keystone Health System, Springfield, Pennsylvania, USA.
authors.forename: David
authors.initials: D
authors.lastname: Webner
authors.affiliation: Department of Kinesiology and Applied Physiology, University of Delaware, Newark, Delaware, USA.
authors.forename: Thomas W
authors.initials: TW
authors.lastname: Kaminski
mesh_terms: D000293:Adolescent; D000070598:Anterior Cruciate Ligament Injuries / Q000175:diagnosis* / Q000601:surgery; D001265:Athletic Injuries / Q000175:diagnosis* / Q000601:surgery; D001490:Basketball / Q000293:injuries; D016022:Case-Control Studies; D005260:Female; D005538:Football / Q000293:injuries; D006688:Hockey / Q000293:injuries; D006801:Humans; D008297:Male; D059385:Plyometric Exercise; D004856:Postural Balance; D011446:Prospective Studies; D015865:Racquet Sports / Q000293:injuries; D012008:Recurrence; D012307:Risk Factors; D012916:Soccer / Q000293:injuries; D013997:Time Factors; D014495:Universities; D054798:Volleyball / Q000293:injuries; D055815:Young Adult
keywords: anterior cruciate ligament; dynamic postural stability; injury prevention; knee; neuromuscular control; proprioception