Kinematic analysis of rugby lineout throws in the Six Nations Tournament

  1. Ignacio Martín 1
  2. Pablo Mira 1
  3. José María Salinas 1
  4. Luis Vaz 2
  5. David Carreras 3
  1. 1 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

  2. 2 University of Trás-os-Montes e Alto Douro, Vila Real. Portugal
  3. 3 Universitat de Lleida
    info

    Universitat de Lleida

    Lleida, España

    ROR https://ror.org/050c3cw24

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Revue:
RICYDE. Revista Internacional de Ciencias del Deporte

ISSN: 1885-3137

Année de publication: 2018

Volumen: 14

Número: 52

Pages: 124-135

Type: Article

DOI: 10.5232/RICYDE2018.05203 DIALNET GOOGLE SCHOLAR lock_openDialnet editor

D'autres publications dans: RICYDE. Revista Internacional de Ciencias del Deporte

Résumé

This study examines 126 successful, six- or seven-man lineouts of the 2013 Six Nations Tournament. Data were extracted from footage of the competition to calculate kinematic variables along with jumper position. Through cluster analysis, six types of throw were identified according to distance and velocity: short-fast, short-slow, medium short-fast, medium short-slow, medium long and long. Significant differences were detected in all the variables examined depending on the throw category (throw distance P<0.001; Partial eta square η2=0.932, height P=0.032; η2=0.096, flight time P<0.001; η2=0.789, starting angle P<0.001; η2=0.502, initial velocity P<0.001; η2=0.767 and jumper position P<0.001; η2=0.641). In the discriminant analysis, all variables except jumper position were able to correctly classify 100% of the throws. In addition, we differentiated the six participating teams, finding significant differences in throw height (Scotland vs England difference means d=0.32m, Ireland d=0.36m or France d=0.37m), flight time (Italy vs England d=0.34s or Ireland d=0.33s) and angle (Italy vs England d=9.72º or Ireland d=8.49º and Scotland vs England d=8.27º or Ireland d=7.04º). Our findings have implications for training and team analysis (own and rival) and also provide direction for future investigations.

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