title: Associations Between Functional and Isolated Performance Measures in College Women's Soccer Players.
abstract: BACKGROUND
  The Star Excursion Balance Test (SEBT) and Functional Movement Screen (FMS) are functional performance measures capable of predicting lower-extremity injury risk. While suboptimal SEBT and FMS performances are influenced by multiple factors, the contribution of hip strength and flexibility to these tests is mostly unknown. Examination of hip strength and flexibility influences on the SEBT and FMS may direct clinicians to better methods of correcting functional deficits.
  
  
  OBJECTIVE
  Determine the relationships of isometric hip strength and hip passive range of motion (PROM) with functional performance measures.
  
  
  METHODS
  Cross-sectional.
  
  
  METHODS
  Athletic training facility.
  
  
  METHODS
  43 NCAA Division I women's soccer players (19.65 ± 1.12 y; 166.93 ± 3.84 cm; 60.99 ± 4.31 kg) volunteered.
  
  
  METHODS
  All participants were tested bilaterally in the SEBT; the deep squat, in-line lunge, hurdle step, and straight leg raise, comprising a lower-extremity FMS (FMS-LE); hip internal and external rotation PROM; and isometric hip extension strength (HEXT). The mean of the 3 averaged, normalized SEBT scores was used as a composite score. Pearson product moment correlations assessed relationships of SEBT and FMS-LE scores with PROM and HEXT. Significance was set a priori at P < .05.
  
  
  RESULTS
  Pearson correlations revealed anterior (ANT) SEBT scores had a low negative association with HEXT (r = -0.33,P = .004) and a low positive association with hip internal rotation PROM (PROM-IR) (r = .43,P = .003). All other correlations were negligible.
  
  
  CONCLUSIONS
  Flexibility training aimed at PROM-IR may contribute to improved ANT scores. Targeting HEXT and hip external rotation PROM are likely not preferred means of correcting deficits in SEBT and FMS-LE performance.
authors.forename: Ryan S
authors.initials: RS
authors.lastname: McCann
authors.forename: Kyle B
authors.initials: KB
authors.lastname: Kosik
authors.forename: Masafumi
authors.initials: M
authors.lastname: Terada
authors.forename: Megan Q
authors.initials: MQ
authors.lastname: Beard
authors.forename: Gretchen E
authors.initials: GE
authors.lastname: Buskirk
authors.forename: Phillip A
authors.initials: PA
authors.lastname: Gribble
mesh_terms: D056352:Athletes; D003430:Cross-Sectional Studies; D005080:Exercise Test; D005260:Female; D006615:Hip / Q000502:physiology; D006801:Humans; D035002:Lower Extremity / Q000502:physiology*; D004856:Postural Balance; D016059:Range of Motion, Articular; D012916:Soccer; D014495:Universities; D055815:Young Adult
keywords: Functional Movement Screen; Star Excursion Balance Test; hip passive range of motion; isometric hip extension strength