2020, Volume 12, Issue 4

The impact of classified and unclassified techniques on the male medalists’ offensive activity at the 2004–2016 Olympic Games



Amar Ait Ali Yahia1

1NIHESTS Abdellah Fadhel


Author for correspondence: Amar Ait Ali Yahia; NIHESTS Abdellah Fadhel; email: ar.aay@hotmail.fr


DOI: 10.29359/BJHPA.12.4.06

Full text

Abstract

Background: Judokas have thrown opponents using various techniques. The researchers’ interest in the classified technique remained relevant. No previous study has investigated the contribution of an unclassified technique to high-level judo. Aim: This work assessed the share of classified and unclassified techniques of Nage-waza on the volume of attack activity, technical repertoire, and effectiveness of medalists at Athens 2004, Beijing 2008, London 2012, and Rio de Janeiro 2016.


Material and methods: The analysis focused on 3,664 Nage-waza actions, including 2,146 classified actions and 1,518 unclassified actions, performed by 112 male medalists in 575 contests. Anderson-Darling test assessed the normality of the collected data. Multiple comparisons via t Student, one-way analysis of variance, and Tukey post hoc test verified the medalists’ offensive activity. Cohen's estimator d and unbiased estimator ω2 tested the size effect of the analysis of variance.


Results: To achieve such performances, medalists attempted 19.2±10.0 classified attacks and 13.6±10.5 unclassified attacks. Their effectiveness involved 2.6±1.8 classified actions and 2.0±1.8 unclassified actions, using a repertoire of 7.4±3.0 classified techniques and 4.2±2.6 unclassified techniques.


Conclusions: Judicious combination of both techniques contributes to the medalists’ performance. Integrating unclassified ones as part of the training and preparedness of judokas was a prior inescapables.


Key words: judo, performance analysis, competition, innovative action


Cite this article as:

AMA:

Ait Ali Yahia A. The impact of classified and unclassified techniques on the male medalists’ offensive activity at the 2004–2016 Olympic Games. Balt J Health Phys Activ. 2020;12(4):59-73. doi:10.29359/BJHPA.12.4.06

APA:

Ait Ali Yahia, A.., (2020). The impact of classified and unclassified techniques on the male medalists’ offensive activity at the 2004–2016 Olympic Games. Balt J Health Phys Activ, 12(4), 59-73. https://doi.org/10.29359/BJHPA.12.4.06

Chicago:

Ait Ali Yahia, Amar . 2020. "The impact of classified and unclassified techniques on the male medalists’ offensive activity at the 2004–2016 Olympic Games". Balt J Health Phys Activ 12 (4): 59-73. doi:10.29359/BJHPA.12.4.06

Harvard:

Ait Ali Yahia, A.., (2020). The impact of classified and unclassified techniques on the male medalists’ offensive activity at the 2004–2016 Olympic Games. Balt J Health Phys Activ, 12(4), pp.59-73. https://doi.org/10.29359/BJHPA.12.4.06

MLA:

Ait Ali Yahia, Amar "The impact of classified and unclassified techniques on the male medalists’ offensive activity at the 2004–2016 Olympic Games." Balt J Health Phys Activ, vol. 12, no. 4, 2020, pp. 59-73. doi:10.29359/BJHPA.12.4.06

Vancouver:

Ait Ali Yahia A. The impact of classified and unclassified techniques on the male medalists’ offensive activity at the 2004–2016 Olympic Games. Balt J Health Phys Activ 2020; 12(4): 59-73. Available from: doi:10.29359/BJHPA.12.4.06