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Identification of elite performance characteristics in a small sample of taekwondo athletes

Along with the increasing popularity of taekwondo, there is a need of evidence-based talent identification (TID) and development programs based upon profiles of future elite athletes. This study first aims to investigate the differences between elite and non-elite taekwondo athletes in anthropometry...

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Main Authors: Norjali Wazir, Mohd Rozilee Wazir, Hiel, Maxim Van, Mostaert, Mireille, Deconinck, Frederik J. A., Pion, Johan, Lenoir, Matthieu
Format: Article
Language:English
Published: Public Library of Science 2019
Online Access:http://psasir.upm.edu.my/id/eprint/80133/1/Identification%20of%20elite%20performance%20characteristics%20in%20a%20small%20sample%20of%20taekwondo%20athletes.pdf
http://psasir.upm.edu.my/id/eprint/80133/
https://pubmed.ncbi.nlm.nih.gov/31150424/
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spelling my.upm.eprints.801332020-09-23T07:58:00Z http://psasir.upm.edu.my/id/eprint/80133/ Identification of elite performance characteristics in a small sample of taekwondo athletes Norjali Wazir, Mohd Rozilee Wazir Hiel, Maxim Van Mostaert, Mireille Deconinck, Frederik J. A. Pion, Johan Lenoir, Matthieu Along with the increasing popularity of taekwondo, there is a need of evidence-based talent identification (TID) and development programs based upon profiles of future elite athletes. This study first aims to investigate the differences between elite and non-elite taekwondo athletes in anthropometry, physical performance and motor coordination. The second aim is to demonstrate the applicability of z-scores in TID research. A total of 98 Taekwondo athletes between 12 and 17 years old were tested using a generic test battery consisting of four anthropometrical (Height, Weight, Fat Percentage, BMI), six physical performance (Sit & Reach, Sprint 5m, Sprint 30m, Counter Movement Jump, Squat Jump, Endurance Shuttle Run) and three motor coordination tests (Moving Sideways, Jumping Sideways, Walking Backwards). Based on the individual success at international competition level, 18 were categorised as elite athletes and 80 were considered as non-elite. T-tests (step 1) on raw test scores and MANOVAs on z-scores (step 2) were conducted to examine differences between the elite and non-elite taekwondo athletes for anthropometry, physical performance and motor coordination tests. Finally, z-scores were reconverted to raw scores to demonstrate practical significance for coaches. Overall, elite taekwondo athletes score better compared to the non-elite group. The MANOVA analysis better scores for elites on fat percentage (-0.55 versus 0.12;p = 0.006), BMI (-0.37 versus 0,08;p = 0.067) sprint speed 30m (-0.48 versus 0.11;p = 0.029), counter movement jump (0.79 versus -0.18;p = 0.000), squat jump (0.42 versus -0.11;p = 0.041), moving sideways (0.79 versus -0.18;p = 0.000) and walking backwards (0.54 versus -0.12;p = 0.006). This study confirms our knowledge on physical profiles of elite taekwondo athletes and expands our knowledge to the domain of motor coordination. This study showed how the z-score method can be used to distinguish between elite and non-elite athletes, the former being low in number by definition. Public Library of Science 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/80133/1/Identification%20of%20elite%20performance%20characteristics%20in%20a%20small%20sample%20of%20taekwondo%20athletes.pdf Norjali Wazir, Mohd Rozilee Wazir and Hiel, Maxim Van and Mostaert, Mireille and Deconinck, Frederik J. A. and Pion, Johan and Lenoir, Matthieu (2019) Identification of elite performance characteristics in a small sample of taekwondo athletes. PLoS One, 14. art. no. e0217358. pp. 1-12. ISSN 1932-6203 https://pubmed.ncbi.nlm.nih.gov/31150424/ 10.1371/journal.pone.0217358
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Along with the increasing popularity of taekwondo, there is a need of evidence-based talent identification (TID) and development programs based upon profiles of future elite athletes. This study first aims to investigate the differences between elite and non-elite taekwondo athletes in anthropometry, physical performance and motor coordination. The second aim is to demonstrate the applicability of z-scores in TID research. A total of 98 Taekwondo athletes between 12 and 17 years old were tested using a generic test battery consisting of four anthropometrical (Height, Weight, Fat Percentage, BMI), six physical performance (Sit & Reach, Sprint 5m, Sprint 30m, Counter Movement Jump, Squat Jump, Endurance Shuttle Run) and three motor coordination tests (Moving Sideways, Jumping Sideways, Walking Backwards). Based on the individual success at international competition level, 18 were categorised as elite athletes and 80 were considered as non-elite. T-tests (step 1) on raw test scores and MANOVAs on z-scores (step 2) were conducted to examine differences between the elite and non-elite taekwondo athletes for anthropometry, physical performance and motor coordination tests. Finally, z-scores were reconverted to raw scores to demonstrate practical significance for coaches. Overall, elite taekwondo athletes score better compared to the non-elite group. The MANOVA analysis better scores for elites on fat percentage (-0.55 versus 0.12;p = 0.006), BMI (-0.37 versus 0,08;p = 0.067) sprint speed 30m (-0.48 versus 0.11;p = 0.029), counter movement jump (0.79 versus -0.18;p = 0.000), squat jump (0.42 versus -0.11;p = 0.041), moving sideways (0.79 versus -0.18;p = 0.000) and walking backwards (0.54 versus -0.12;p = 0.006). This study confirms our knowledge on physical profiles of elite taekwondo athletes and expands our knowledge to the domain of motor coordination. This study showed how the z-score method can be used to distinguish between elite and non-elite athletes, the former being low in number by definition.
format Article
author Norjali Wazir, Mohd Rozilee Wazir
Hiel, Maxim Van
Mostaert, Mireille
Deconinck, Frederik J. A.
Pion, Johan
Lenoir, Matthieu
spellingShingle Norjali Wazir, Mohd Rozilee Wazir
Hiel, Maxim Van
Mostaert, Mireille
Deconinck, Frederik J. A.
Pion, Johan
Lenoir, Matthieu
Identification of elite performance characteristics in a small sample of taekwondo athletes
author_facet Norjali Wazir, Mohd Rozilee Wazir
Hiel, Maxim Van
Mostaert, Mireille
Deconinck, Frederik J. A.
Pion, Johan
Lenoir, Matthieu
author_sort Norjali Wazir, Mohd Rozilee Wazir
title Identification of elite performance characteristics in a small sample of taekwondo athletes
title_short Identification of elite performance characteristics in a small sample of taekwondo athletes
title_full Identification of elite performance characteristics in a small sample of taekwondo athletes
title_fullStr Identification of elite performance characteristics in a small sample of taekwondo athletes
title_full_unstemmed Identification of elite performance characteristics in a small sample of taekwondo athletes
title_sort identification of elite performance characteristics in a small sample of taekwondo athletes
publisher Public Library of Science
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/80133/1/Identification%20of%20elite%20performance%20characteristics%20in%20a%20small%20sample%20of%20taekwondo%20athletes.pdf
http://psasir.upm.edu.my/id/eprint/80133/
https://pubmed.ncbi.nlm.nih.gov/31150424/
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score 13.211869

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