title: Kinematic analysis of modern dance movement "stag jump" within the context of impact loads, injury to the locomotor system and its prevention.
abstract: BACKGROUND
  This paper presents a case study of kinematic analysis of the modern dance movement known as the "stag jump". Detailed analysis of the kinematic structure of this movement as performed by the dancers, accompanied by measurements of impact forces during landing, will allow the authors to determine, in subsequent model-based research phases, the forces acting in knee joints of the lower landing limb.
  
  
  METHODS
  Two professional modern dancers participated in the study: a male and a female. The study consisted in recording the values of ground reaction and body motion, and then determining and analyzing kinematic parameters of performed movements.
  
  
  RESULTS
  The results of measurement of joint angles in the landing lower limb, pelvis, and foot position in relation to the ground, as well as the level of vertical components of ground reaction, provided insight into the loading response phase of the "stag jump". The measurements and obtained results show differences between the man and woman in ground reactions and kinematic quantities.
  
  
  CONCLUSIONS
  The results obtained during the research may be used in the development and teaching of dancing movements. Training sessions, carried out in the biomechanical laboratory, with active participation of dancing teachers, could form a basis for a prevention model of injuries and physical overloads occurring within this occupational group. Primary differences in the "stag jump" performance technique probably result from the different educational path the man and the woman went through.
authors: Chair of Biomechanics, University School of Physical Education, Poznań, Poland.
authors: Joanna
authors: J
authors: Gorwa
authors: Chair of Biomechanics, University School of Physical Education, Poznań, Poland.
authors: Lechosław B
authors: LB
authors: Dworak
authors: Department of Biomechatronics, Silesian Universit of Technology, Zabrze, Poland.
authors: Robert
authors: R
authors: Michnik
authors: Department of Biomechatronics, Silesian Universit of Technology, Zabrze, Poland.
authors: Jacek
authors: J
authors: Jurkojć
mesh_terms: D001696:Biomechanical Phenomena; D003615:Dancing / Q000502:physiology*; D005260:Female; D006621:Hip Joint / Q000503:physiopathology; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology; D007866:Leg / Q000503:physiopathology*; D008124:Locomotion / Q000502:physiology*; D008297:Male; D010388:Pelvis / Q000503:physiopathology; D016474:Weight-Bearing / Q000502:physiology