Differences in neuromuscular control between impact and no impact roundhouse kick in athletes of different skill levels

Quinzi, Federico; Camomilla, Valentina; Felici, Francesco; Mario, Alberto Di; Sbriccoli, Paola

doi:10.1016/j.jelekin.2012.09.006

Cited by 39 publications

(60 citation statements)

References 24 publications

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“…Other studies are related to the neuromuscular activation strategy in the lower limb segments, but in the round house kick, performed with impact or without impact (Quinzi, Camomilla, Felici, Di Mario & Sbriccoli, 2013), where was found improvements in the conduction velocity and muscle fibbers recruitment in elite karateka, which, according to the authors, may be associated with the training. Specifically, in mixed martial arts elite fighters, McGill, Chaimberg, Frost & Fenwick (2010) described a double peak of muscle activity during the performance of a variety of strokes.…”

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confidence: 93%

“…For the karate practitioners in the maegeri execution, the movement time, the positional angles and range of motion, the growing speed peak in the segmental movements of the lower limb, and changes in the muscle activity, all of that was related to an improvement of the neuromuscular activation during a complex motor skill (Liang et al 2008;McGill et al, 2010;Quinzi et al, 2013;Sbriccoli et al, 2010).…”

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confidence: 99%

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Characterization of kinesiological patterns of the frontal kick, mae-geri, in karate experts and non-karate practitioners

VencesBrito

Branco

Fernandes

et al. 2014

Rev. artes marciales asiát.

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Presently, coaches and researchers need to have a better comprehension of the kinesiological parameters that should be an important tool to support teaching methodologies and to improve skills performance in sports. The aim of this study was to (i) identify the kinematic and neuromuscular control patterns of the front kick (maegeri) to a fixed target performed by 14 experienced karate practitioners, and (ii) compare it with the execution of 16 participants without any karate experience, allowing the use of those references in the analysis of the training and learning process. Results showed that the kinematic and neuromuscular activity during the kick performance occurs within 600 ms. Muscle activity and kinematic analysis demonstrated a sequence of activation bracing a proximal-to-distal direction, with the muscles presenting two distinct periods of activity (1, 2), where the karateka group has a greater intensity of activation -root mean square (RMS) and electromyography (EMG) peak -in the first period on Rectus Femoris (RF1) and Vastus Lateralis (VL1) and a lower duration of co-contraction in both periods on Rectus Femoris-Biceps Femoris and Vastus Lateralis-Biceps Femoris (RF-BF; VL-BF). In the skill performance, the hip flexion, the knee extension and the ankle plantar flexion movements were executed with smaller difference in the range of action (ROA) in the karateka group, reflecting different positions of the segments. In conclusion, it was observed a general kinesiological pattern, which was similar in karateka and non-karateka practitioners. However, in the karateka group, the training induces a specialization in the muscle activity reflected in EMG and kinematic data, which leads to a better ballistic performance in the execution of the maegeri kick, associated with a maximum speed of the distal segments, reached closer to the impact moment, possibly representing more power in the contact.Palabras clave: Kinesiology; electromyography; motor control; martial arts; combat sports. Caracterización de los patrones cinesiológicos de la patada frontal, maegeri, en practicantes expertos de kárate y en sujetos no practicantes ResumenActualmente, los entrenadores e investigadores necesitan comprender bien los parámetros cinesiológicos del movimiento ya que son una herramienta importante de soporte de las metodologías de entrenamiento y enseñanza, y para mejorar el rendimiento de los gestos motores. El objetivo de este estudio fue (i) identificar los patrones cinemáticos y del control neuromuscular de ejecución de la patada frontal (maegeri) en un objetivo fijo, realizada por 14 karatecas cinturón negro, (ii) y comparar con la ejecución del mismo gesto técnico realizada por 16 participantes sin práctica o experiencia en kárate, siendo posible el uso de esos datos en análisis Caracterização dos padrões cinesiológicos do pontapé frontal, maegeri, em karatecas expertos e indivíduos não praticantes ResumoActualmente, treinadores e investigadores necessitam de compreender bem os parâmetros cinesiológicos do m...

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confidence: 93%

mentioning

confidence: 99%

Characterization of kinesiological patterns of the frontal kick, mae-geri, in karate experts and non-karate practitioners

VencesBrito

Branco

Fernandes

et al. 2014

Rev. artes marciales asiát.

View full text Add to dashboard Cite

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“…Even when an empirical model is presented, very often it does not apply full body [27,39,49,57,58,65]. This is a big simplification of those models because for example in martial arts the elite fighters use whole body to get the high speed and impact of techniques.…”

Section: Introductionmentioning

confidence: 99%

Averaging of motion capture recordings for movements’ templates generation

Hachaj

Koptyra

Ogiela

2018

Multimed Tools Appl

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In this paper we propose, describe and evaluate the novel motion capture (MoCap) data averaging framework. It incorporates hierarchical kinematic model, angle coordinates' preprocessing methods, that recalculate the original MoCap recording making it applicable for further averaging algorithms, and finally signals averaging processing. We have tested two signal averaging methods namely Kalman Filter (KF) and Dynamic Time Warping barycenter averaging (DBA). The propose methods have been tested on MoCap recordings of elite Karate athlete, multiple champion of Oyama karate knockdown kumite who performed 28 different karate techniques repeated 10 times each. The proposed methods proved to have not only high effectiveness measured with root-mean-square deviation (4.04 ± 5.03 degrees for KF and 5.57 ± 6.27 for DBA) and normalized Dynamic Time Warping distance (0.90 ± 1.58 degrees for KF and 0.93 ± 1.23 for DBA), but also the reconstruction and visualization of those recordings persists all crucial aspects of those complicated actions. The proposed methodology has many important applications in classification, clustering, kinematic analysis and coaching. Our approach generates an averaged full body motion template that can be practically used for example for human actions Multimed Tools Appl (2018) 77:30353-30380 recognition. In order to prove it we have evaluated templates generated by our method in human action classification tasks using DTW classifier. We have made two experiments. In first leave -one -out cross -validation we have obtained 100% correct recognitions. In second experiment when we classified recordings of one person using templates of another recognition rate 94.2% was obtained.

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“…Por una parte, la evaluación del salto vertical constituye uno de los métodos de valoración de la fuerza explosiva de miembros inferiores más usados en multitud de especialidades deportivas dada su capacidad de detectar estados de fatiga y efectos del entrenamiento (Balsalobre-Fernández, Tejero-González, Campo-Vecino, & Alonso-Curiel, 2013;Gorostiaga et al, 2004;Jiménez-Reyes & González-Badillo, 2011;Sanchez-Medina & González-Badillo, 2011). Por otra parte, el análisis biomecánico de las técnicas de patada es una prioridad en los estudios en artes marciales, ya que dichas habilidades tienen una gran presencia tanto en las competiciones de combates como en las de katas (Pozo et al, 2011;Quinzi, Camomilla, Felici, Di Mario, & Sbriccoli, 2013;Sforza et al, 2002).…”

Section: Introductionunclassified

Diferencias en el salto vertical y la velocidad de patada mae-geri entre karatekas internacionales y nacionales

Balsalobre-Fernández

Martínez-Majolero²,

Villacieros-Rodríguez³

et al. 2013

Rev. artes marciales asiát.

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ResumenObjetivos: La fuerza explosiva de miembros inferiores y la velocidad de la patada mae-geri son fundamentales en el karate de competición, aunque no está claro hasta qué punto estas variables diferencian a los competidores de mayor nivel deportivo. El objetivo de esta investigación es analizar las diferencias en la velocidad de ejecución de la patada maegeri y el salto vertical con contramovimiento (CMJ) entre un grupo de karatekas de máximo nivel internacional y otro grupo de karatekas de nivel nacional. Método: Trece karatekas de nivel internacional y once karatekas de nivel nacional/amateur participaron en el estudio. Después de un calentamiento estándar, se midió la altura alcanzada (en cm) en el CMJ mediante una plataforma de infrarrojos y la velocidad de ejecución (en m/s) de la patada mae-geri mediante cámaras de alta velocidad y análisis por software biomecánico. Resultados: Procediendo mediante MANCOVA para analizar las diferencias entre los grupos controlando la variable edad, los resultados muestran que los karatekas internacionales tienen significativamente mayores niveles de CMJ que los nacionales (+22.1%, F=9,47; p=0,006; η 2 =0,311), no ocurriendo lo mismo con la velocidad de patada mae-geri (+5,7%, F=0.80; p=0.38; η 2 =0.03), que no mostró diferencias significativas entre grupos. Conclusión: Nuestros datos muestran, por un lado, la importancia que tiene la valoración del CMJ como una herramienta para detectar talentos en karate y, por otro lado, que para alcanzar un nivel deportivo internacional en karate puede ser importante incrementar los niveles de CMJ hasta valores similares a los aquí ofrecidos.Palabras clave: Artes marciales; deportes de combate; kata; fuerza explosiva; alto rendimiento. Differences in vertical jumping and mae geri kicking velocity between international and national level karateka AbstractAim: Lower limb explosive strength and mae-geri kicking velocity are fundamental in karate competition; although it is unclear whether these variables could differentiate the high-level athletes. The objective of this research is to analyze the differences in the mae-geri kicking velocity and the counter-movement jump (CMJ) between a group of international top level karateka and another group of national-level karateka. Methods: Thirteen international-level karateka and eleven national-level karateka participated in the study. After a standard warm-up, CMJ height Diferenças entre o salto vertical e a velocidade do pontapé maegeri entre karatecas internacionais e nacionais ResumoObjetivos: A força explosiva dos membros inferiores e a velocidade do mae-geri são fundamentais no karaté de competição, pese embora não seja claro até que ponto estas variáveis se diferenciam nos competidores de maior nível desportivo. O objetivo desta investigação é analisar as diferenças de velocidade de execução do pontapé mae-geri e o salto vertical com contra-movimento (CMJ) entre um grupo de karatecas de alto nível internacional e um outro grupo de karatecas de nível nacional. Método: Treze karatecas d...

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Differences in neuromuscular control between impact and no impact roundhouse kick in athletes of different skill levels

Cited by 39 publications

References 24 publications

Characterization of kinesiological patterns of the frontal kick, mae-geri, in karate experts and non-karate practitioners

Characterization of kinesiological patterns of the frontal kick, mae-geri, in karate experts and non-karate practitioners

Averaging of motion capture recordings for movements’ templates generation

Diferencias en el salto vertical y la velocidad de patada mae-geri entre karatekas internacionales y nacionales

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