27 June 2014 : Research paper
Kinematic analysis of modern dance movement “stag jump” within the context of impact loads, injury to the locomotor system and its prevention
Joanna GorwaABCDEFG, Lechosław B. DworakACDEFG, Robert MichnikABCDEF, Jacek JurkojćABCDEFDOI: 10.12659/MSM.890126
Med Sci Monit 2014; 20:1082-1089
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.
MATERIAL AND 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.
Keywords: Dancing - physiology, Biomechanical Phenomena, Hip Joint - physiopathology, Knee Joint - physiopathology, Leg - physiopathology, Locomotion - physiology, Pelvis - physiopathology, Weight-Bearing - physiology
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