Title
Kinematic and temporal parameters in different modalities of the reverse punch measured by IMU sensors
Creator
Vuković, Vesna, 1977-
CONOR:
69684745
Copyright date
2023
Object Links
Select license
Autorstvo-Nekomercijalno 3.0 Srbija (CC BY-NC 3.0)
License description
Dozvoljavate umnožavanje, distribuciju i javno saopštavanje dela, i prerade, ako se navede ime autora na način odredjen od strane autora ili davaoca licence. Ova licenca ne dozvoljava komercijalnu upotrebu dela. Osnovni opis Licence: http://creativecommons.org/licenses/by-nc/3.0/rs/deed.sr_LATN Sadržaj ugovora u celini: http://creativecommons.org/licenses/by-nc/3.0/rs/legalcode.sr-Latn
Language
Serbian
Cobiss-ID
Theses Type
Doktorska disertacija
description
Datum odbrane: 22.05.2024.
Other responsibilities
Academic Expertise
Društveno-humanističke nauke
University
Univerzitet u Beogradu
Faculty
Fakultet sporta i fizičkog vaspitanja
Alternative title
Кинематички и временски показатељи ударца гјаку зуки у различитим модалитетима извођења мерени IMU сензорима
Publisher
[V. Vuković]
Format
110 listova
description
Physical education and Sport
- Science of Physical Education, Sports, and Recreation / Физичко васпитање и спорт
- Науке физичког васпитања, спорта и рекреације
Abstract (sr)
Being able to perform the point-worth technique is a determining factor in
distinguishing between winning the championship title and experiencing failure. For that reason,
elite karate athletes are continually faced with the imperative to enhance their scoring abilities in
dynamic combat environments. To improve technique, it is necessary to adopt a novel
methodological approach based on investigation in realistic surroundings. Stepping out of the usual
laboratory setting thus demands combining a set of specific tests with a reliable measurement
device.
These requirements determined the aim of the research, which was to analyse the
technical aspects of the reverse punch aimed at the body. The technique qualities, i.e., kinematic
and temporal indicators of the punch in different modalities, were assessed by using wireless
technology in surroundings that replicated training and competition environments. The results of the
research are presented in three published studies addressing the main points of such an approach.
The findings of the first study presented in this dissertation confirmed that IMU sensor
technology is valid and discriminatory with the respect to the specific indicators of the reverse
punch and within different modalities of performance. The results of the second study revealed that
the timeline of kinematic indicators in the developmental phase of the reverse punch may be used as
predictors of the punch efficiency. In addition, the data collected from the hand indicates a tendency
to exhibit higher degrees of stability when compared to the body. The study also proposed ten
karate-specific tests with insightful placement of wireless devices on the most informative points of
the body within a multimodal experimental set-up. The third study questioned if the impact is
influenced by the conditions of execution and revealed the difference in the temporal and kinematic
variables of the reverse punch between the applied modalities. Significant correlation coefficients
were observed between the variables pertaining to body and hand measurements, with both large
and medium correlation coefficients.
Overall, this research made a contribution to understanding the kinematic and temporal
punch patterns in the developmental phase of RP in different modalities of execution as a
foundation for individual approaches to enhancing punch efficiency. Apart from that, a novel,
simple, and easy-to-use method for technique analysis was proposed. The main advantage of this
method is its in-field use, i.e., during realistic combat tasks in a common fighting environment.
Finally, such an approach can be used to improve the training and competitive practice of elite-level
karate athletes by identifying the potentially weak points in their RP execution.
Abstract (en)
Фактор који прави разлику између освајања шампионске титуле и пораза је
способност да се изведе техника вредна поена. Из тог разлога, елитни каратисти су
константно суочени са захтевом да у динамичном борбеном окружењу подижу своје
тхеничке способности на виши ниво. Унапређење технике захтева усвајање новог
методолошког приступа заснованог на истраживању у реалистичном окружењу. Стога,
отклон од уобичајеног лабораторијског приступа захтева комбиновање скупа специфичних
тестова и употребу поузданих мерних уређаја.
Ови захтеви су одредили циљ истраживања, тј. анализу техничких аспеката
ударца гјаку зуки усмереног на тело. Технички аспекти ударца, односно кинематички и
временски показатељи у различитим модалитетима извођења, процењени су коришћењем
бежичне технологије у окружењу сличном условима тренинга и такмичења. Резултати
истраживања представљени су у три публиковане студије које се баве главним аспектима
овог приступа.
Налази прве студије представљене у овој дисертацији потврдили су да је IMU
(Internal Measurement Units) сензорска технологија валидна и дискриминаторна у погледу
специфичних индикатора ударца гјаку зуки и у оквиру различитих модалитета перформанси.
Резултати друге студије су открили да се временска линија кинематичких показатеља у фази
развоја ударца гјаку зуки може користити као предиктор ефикасности технике. Поред тога,
подаци прикупљени са шаке указују на тенденцију испољавања вишег степена стабилности у
поређењу са оним који потичу са тела. У студији је, такође, предложено десет тестова
специфичних за карате, у комбинацији са постављањем бежичних уређаја на
најинформативније тачке тела, и то у оквиру мултимодалне експерименталне поставке.
Трећа студија довела је у питање услова извођења на завршницу ударца, а утврђена је
разлика у временским и кинематичким варијаблама ударца гјаку зуки између модалитета
извођења. Утврђена је значајна повезаност варијабли (тела и шаке), са високим и средњим
коефицијентом корелације.
Сумарно, ово истраживање доприноси разумевању кинематичких и временских
параметара у развојној фази ударца гјаку зуки у различитим модалитетима извођења као
основе за индивидуални приступ у повећању ефикасности технике. Поред тога, предложен је
нов, једноставан и за употребу лак методолошки приступ у анализи технике. Његова главна
предност лежи у могућности употребе ван лабораторијских услова, односно у реалистичним
борбеним задацима и уобичајеном борбеном окружењу. Најзад, такав приступ може
побољшати тренажну и такмичарску праксе елитних каратиста и то путем идентификације
потенцијалних слабости приликом извођења ударца гјаку зуки.
Authors Key words
gyako tsuki; standardised testing; elite athletes; kinematic sensors; technique analysis;
acceleration; velocity; rotation angle; timeline
Authors Key words
гјаку зуки; стандардизовано тестирање; елитни спортисти; кинематички
сензори; анализа технике; убрзање; брзина; угао ротације; временска линија
Classification
796.85.012.56(043.3
Type
Tekst
Abstract (sr)
Being able to perform the point-worth technique is a determining factor in
distinguishing between winning the championship title and experiencing failure. For that reason,
elite karate athletes are continually faced with the imperative to enhance their scoring abilities in
dynamic combat environments. To improve technique, it is necessary to adopt a novel
methodological approach based on investigation in realistic surroundings. Stepping out of the usual
laboratory setting thus demands combining a set of specific tests with a reliable measurement
device.
These requirements determined the aim of the research, which was to analyse the
technical aspects of the reverse punch aimed at the body. The technique qualities, i.e., kinematic
and temporal indicators of the punch in different modalities, were assessed by using wireless
technology in surroundings that replicated training and competition environments. The results of the
research are presented in three published studies addressing the main points of such an approach.
The findings of the first study presented in this dissertation confirmed that IMU sensor
technology is valid and discriminatory with the respect to the specific indicators of the reverse
punch and within different modalities of performance. The results of the second study revealed that
the timeline of kinematic indicators in the developmental phase of the reverse punch may be used as
predictors of the punch efficiency. In addition, the data collected from the hand indicates a tendency
to exhibit higher degrees of stability when compared to the body. The study also proposed ten
karate-specific tests with insightful placement of wireless devices on the most informative points of
the body within a multimodal experimental set-up. The third study questioned if the impact is
influenced by the conditions of execution and revealed the difference in the temporal and kinematic
variables of the reverse punch between the applied modalities. Significant correlation coefficients
were observed between the variables pertaining to body and hand measurements, with both large
and medium correlation coefficients.
Overall, this research made a contribution to understanding the kinematic and temporal
punch patterns in the developmental phase of RP in different modalities of execution as a
foundation for individual approaches to enhancing punch efficiency. Apart from that, a novel,
simple, and easy-to-use method for technique analysis was proposed. The main advantage of this
method is its in-field use, i.e., during realistic combat tasks in a common fighting environment.
Finally, such an approach can be used to improve the training and competitive practice of elite-level
karate athletes by identifying the potentially weak points in their RP execution.
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