title: Landing differences between men and women in a maximal vertical jump aptitude test.
abstract: OBJECTIVE
  The aim of this study was to analyze the gender differences in the vertical ground reaction forces and the position of the center of gravity during the landing phase of a maximal vertical jump aptitude test.
  
  
  METHODS
  The push-off, flight and landing phases of the jumps of 291 males (age = 19.6+/-2.8 years) and 92 females (age = 19.2+/-2.6 years), applicants to a Spanish faculty of sports sciences, were analyzed with a force platform.
  
  
  RESULTS
  The greatest differences between men and women were found in the jump performance (women = 25.6+/-3.5 cm; men = 35.5+/-4.5 cm) and second peak vertical force value of the landing phase (women = 5.89+/-2.06 times body weight; men = 7.51 +/-2.38 times body weight), the values being greater in the men's group (P < 0.001). Correlation coefficients showed that the women utilized a different landing pattern than the one utilized by the men.
  
  
  CONCLUSIONS
  Contrary to the authors' expectations, women showed lower second peak vertical force values during the landing. Taking into account only a kinetic point of view, they would have a lower risk of injury during the landing movement of maximal jumps. The lower values in the peak force, the delay of the impact of the calcaneus and the longer path of the center of gravity during the landing phase found in the women's group were related to a landing technique that is different from that of men.
authors.affiliation: Faculty of Sports Sciences, University of Castilla-La Mancha, Toledo, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Abián
authors.forename: L M
authors.initials: LM
authors.lastname: Alegre
authors.forename: A J
authors.initials: AJ
authors.lastname: Lara
authors.forename: J A
authors.initials: JA
authors.lastname: Rubio
authors.forename: X
authors.initials: X
authors.lastname: Aguado
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D005144:F Factor; D005260:Female; D006297:Health Services Accessibility; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology; D009119:Muscle Contraction / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology; D018482:Muscle, Skeletal / Q000502:physiology*; D010865:Pilot Projects; D011187:Posture / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology; D016474:Weight-Bearing / Q000502:physiology; D055815:Young Adult