TY - JOUR
T1 - Kinetic and kinematic analysis of hurdle clearance of an african and a world champion athlete
T2 - A comparative study
AU - Amara, Samiha
AU - Mkaouer, Bessem
AU - Chaabène, Helmi
AU - Negra, Yassine
AU - Hammoudi-Riahi, Sabra
AU - Ben-Salah, Fatma Z.
N1 - Funding Information:
The study was funded by the University of Zululand Research Committee. The researchers wish to thank Abel Toriola and Shadrack Nthangeni of Tshwane University of Technology for having given permission to use their questionnaire in our study.
Funding Information:
To this end, the university received funding from the Department of Higher Education and Training (DHET) to initiate the infrastructure renewal programme with money to be set aside to make the campus safer (PMG, 2012; CHE, 2014b,). The infrastructure allocation from the DHET to the University of Zululand amounted to 480 million for the period 2010–2014 (Zuma, 2014). Unless the institution addresses the safety concerns of students, participation in sport will always be less than it could be. Safety was first concern highlighted by Nthangeni et al. (2009) in the urban setting of Tshwane University of Technology (TUT) in Pretoria, which appears to be a uniquely South African problem. In studies conducted with United Kingdom (Lovell et al., 2010), United States (Hashim et al., 2012), Chinese (Chung et al., 2013) and Spanish (Martínez-Lemos et al., 2014) students, safety did not feature as a barrier to participation in sport.
Funding Information:
The authors gratefully acknowledge the financial assistance from the National Research Foundation (NRF). The authors are also grateful to all the fieldworkers as well as to all the surfers who were willing to form part of the research.
Publisher Copyright:
© 2017, University of Stellenbosch. All rights reserved.
PY - 2017
Y1 - 2017
N2 - The modelling of athletic movement is an important method in motor-skill learning. A world champion and a world record-holder, C.J, with a time of 12.91s, was chosen as a model-athlete in 110m hurdles in this study. He was compared with R.G, a Tunisian athlete and African champion based on his personal best of 13.90s. The biomechanical characteristics of the latter were analysed and compared with that of C.J’s using the kinematic and kinetic parameters of the 110m hurdle clearance of the two athletes to determine the difference in their hurdling technique. R.G’s hurdling sequences over the fourth and fifth hurdle were recorded using four cameras [Sony DCR-PC108E]. His kinematic model was digitised using SkillSpector® software. The results showed a difference in the centre of mass displacement at hurdle clearance and velocity-parameters in both the take-off and the landing phases. When comparing R.G to C.J, the latter had a smaller vertical displacement and a longer horizontal displacement, in addition to, a greater horizontal velocity along with a better reaction force and a higher peak-power. To improve R.G’s performance, greater horizontal velocity and lower contact time at the take-off phase through a higher rate of force development are needed.
AB - The modelling of athletic movement is an important method in motor-skill learning. A world champion and a world record-holder, C.J, with a time of 12.91s, was chosen as a model-athlete in 110m hurdles in this study. He was compared with R.G, a Tunisian athlete and African champion based on his personal best of 13.90s. The biomechanical characteristics of the latter were analysed and compared with that of C.J’s using the kinematic and kinetic parameters of the 110m hurdle clearance of the two athletes to determine the difference in their hurdling technique. R.G’s hurdling sequences over the fourth and fifth hurdle were recorded using four cameras [Sony DCR-PC108E]. His kinematic model was digitised using SkillSpector® software. The results showed a difference in the centre of mass displacement at hurdle clearance and velocity-parameters in both the take-off and the landing phases. When comparing R.G to C.J, the latter had a smaller vertical displacement and a longer horizontal displacement, in addition to, a greater horizontal velocity along with a better reaction force and a higher peak-power. To improve R.G’s performance, greater horizontal velocity and lower contact time at the take-off phase through a higher rate of force development are needed.
KW - 110m Hurdles
KW - Displacement
KW - Motion analysis
KW - Reaction force
KW - Velocity
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M3 - Article
AN - SCOPUS:85029418521
SN - 0379-9069
VL - 39
SP - 1
EP - 12
JO - South African Journal for Research in Sport, Physical Education and Recreation
JF - South African Journal for Research in Sport, Physical Education and Recreation
IS - 2
ER -