Biomechanical Analysis Of Speed In Badminton Jump Smash
SCIENCE AND RACKET SPORTS V(2017)
Abstract
The aim of this investigation was to identify the key aspects of technique which characterise the fastest jump smashes and to consider the mechanics behind these relationships. Data were collected for a group of eighteen experienced badminton players, each performing a total of twenty-four overhead jump smashes. The fastest trial with minimal marker movement was chosen for each player. Three dimensional kinematic data were collected using an 18 camera Vicon Motion Analysis System. Forty-four 14 mm retro-reflective markers were attached to each subject; eight markers were attached to the racket, and an additional marker was attached to the shuttlecock to enable shuttlecock speed to be calculated. The effect of interactions between technique variables and shuttlecock velocity was addressed using stepwise linear regression. Four technique variables were identified as being the best predictors of shuttlecock velocity, explaining 84% of the observed variation. They were elbow angle at the end of retraction, wrist angle at shuttle contact, timing from preparation to shuttle contact, and knee flexion at preparation. The results of this investigation are likely to be useful in the coaching of the jump smash and in talent identification.
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Key words
badminton, jump smash, biomechanics, technique
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