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Reliability and validity of a taekwondo electronic body protector / Ryan Chong Wy Lunn

Protector and Scoring System (PSS) was introduced in Taekwondo to encourage transparency in scoring during competition and has been used in the Olympics since London 2012. It consists of two main components which are the electronic body protector and electronic socks. There have been limited numb...

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Main Author: Ryan Chong , Wy Lunn
Format: Thesis
Published: 2018
Subjects:
RC1200 Sports Medicine
Online Access:http://studentsrepo.um.edu.my/9352/1/Ryan_Chong_Wy_Lunn.pdf
http://studentsrepo.um.edu.my/9352/6/ryan.pdf
http://studentsrepo.um.edu.my/9352/
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spelling my.um.stud.93522021-05-30T20:24:23Z Reliability and validity of a taekwondo electronic body protector / Ryan Chong Wy Lunn Ryan Chong , Wy Lunn RC1200 Sports Medicine Protector and Scoring System (PSS) was introduced in Taekwondo to encourage transparency in scoring during competition and has been used in the Olympics since London 2012. It consists of two main components which are the electronic body protector and electronic socks. There have been limited number of studies done on the PSS, nearly all of the previous studies were not comprehensive and had questionable testing methods. Therefore the main objective of this study was to methodologically examine the validity and reliability of the PSS. To fulfill these objectives, a custom made mechanical pendulum was built to test the PSS. The reliability of the pendulum was first determined by tracking the pendulum’s mean velocity at impact on two separate occasions. The kinetic energy of the pendulum was then calculated on average to be 55.52 Joules. For the experimental trial, the electronic body protector was divided into 12 sections and each section was tested with 50 trials on two separate days. It was found that only three sections had no significant differences (p > 0.01) between the two days while the rest of the sections had significantly different reading between day one and day two. Based on the homologous descriptive statistic, only two sections were in the same group which translates to the PSS being only 16.7% reliable overall over both days. In terms of validity, t-test was used to measure the differences between the calculated kinetic energy from the pendulum and the displayed kinetic energy on the PSS; values were found to be significantly different (p < 0.01). Overall, the PSS was found to be neither reliable nor a valid scoring tool. It is suggested that each unit should also be examined and scrutinized prior to being used in any future tournaments. 2018 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/9352/1/Ryan_Chong_Wy_Lunn.pdf application/pdf http://studentsrepo.um.edu.my/9352/6/ryan.pdf Ryan Chong , Wy Lunn (2018) Reliability and validity of a taekwondo electronic body protector / Ryan Chong Wy Lunn. Masters thesis, University of Malaya. http://studentsrepo.um.edu.my/9352/
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Student Repository
url_provider http://studentsrepo.um.edu.my/
topic RC1200 Sports Medicine
spellingShingle RC1200 Sports Medicine
Ryan Chong , Wy Lunn
Reliability and validity of a taekwondo electronic body protector / Ryan Chong Wy Lunn
description Protector and Scoring System (PSS) was introduced in Taekwondo to encourage transparency in scoring during competition and has been used in the Olympics since London 2012. It consists of two main components which are the electronic body protector and electronic socks. There have been limited number of studies done on the PSS, nearly all of the previous studies were not comprehensive and had questionable testing methods. Therefore the main objective of this study was to methodologically examine the validity and reliability of the PSS. To fulfill these objectives, a custom made mechanical pendulum was built to test the PSS. The reliability of the pendulum was first determined by tracking the pendulum’s mean velocity at impact on two separate occasions. The kinetic energy of the pendulum was then calculated on average to be 55.52 Joules. For the experimental trial, the electronic body protector was divided into 12 sections and each section was tested with 50 trials on two separate days. It was found that only three sections had no significant differences (p > 0.01) between the two days while the rest of the sections had significantly different reading between day one and day two. Based on the homologous descriptive statistic, only two sections were in the same group which translates to the PSS being only 16.7% reliable overall over both days. In terms of validity, t-test was used to measure the differences between the calculated kinetic energy from the pendulum and the displayed kinetic energy on the PSS; values were found to be significantly different (p < 0.01). Overall, the PSS was found to be neither reliable nor a valid scoring tool. It is suggested that each unit should also be examined and scrutinized prior to being used in any future tournaments.
format Thesis
author Ryan Chong , Wy Lunn
author_facet Ryan Chong , Wy Lunn
author_sort Ryan Chong , Wy Lunn
title Reliability and validity of a taekwondo electronic body protector / Ryan Chong Wy Lunn
title_short Reliability and validity of a taekwondo electronic body protector / Ryan Chong Wy Lunn
title_full Reliability and validity of a taekwondo electronic body protector / Ryan Chong Wy Lunn
title_fullStr Reliability and validity of a taekwondo electronic body protector / Ryan Chong Wy Lunn
title_full_unstemmed Reliability and validity of a taekwondo electronic body protector / Ryan Chong Wy Lunn
title_sort reliability and validity of a taekwondo electronic body protector / ryan chong wy lunn
publishDate 2018
url http://studentsrepo.um.edu.my/9352/1/Ryan_Chong_Wy_Lunn.pdf
http://studentsrepo.um.edu.my/9352/6/ryan.pdf
http://studentsrepo.um.edu.my/9352/
_version_ 1738506254986248192
score 13.222552

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