iKarate: Karate Kata Guidance System

Emad, Bassel; Atef, Omar; Shams, Yehya; El-Kerdany, Ahmed; Shorim, Nada; Nabil, Ayman; Atia, Ayman

doi:10.1016/j.procs.2020.07.024

Cited by 12 publications

(19 citation statements)

References 14 publications

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“…The consecutive blinded title and abstract screening of the remaining 132 articles resulted in 41 eligible and 91 excluded papers. After the full-text screening, 16 articles were included in this review [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38], consisting of journal articles and conference proceedings from 2017 to 2021 (see Figure 3).…”

Section: Resultsmentioning

confidence: 99%

Human Movement Quality Assessment Using Sensor Technologies in Recreational and Professional Sports: A Scoping Review

Venek¹,

Kranzinger²,

Schwameder

et al. 2022

Sensors

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The use of sensor technology in sports facilitates the data-driven evaluation of human movement not only in terms of quantity but also in terms of quality. This scoping review presents an overview of sensor technologies and human movement quality assessments in ecologically-similar environments. We searched four online databases to identify 16 eligible articles with either recreational and/or professional athletes. A total of 50% of the studies used inertial sensor technology, 31% vision-based sensor technology. Most of the studies (69%) assessed human movement quality using either the comparison to an expert’s performance, to an exercise definition or to the athletes’ individual baseline performance. A total of 31% of the studies used expert-based labeling of the movements to label data. None of the included studies used a control group-based study design to investigate impact on training progress, injury prevention or behavior change. Although studies have used sensor technology for movement quality assessment, the transfer from the lab to the field in recreational and professional sports is still emerging. Hence, research would benefit from impact studies of technology-assisted training interventions including control groups as well as investigating features of human movement quality in addition to kinematic parameters.

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Section: Resultsmentioning

confidence: 99%

Human Movement Quality Assessment Using Sensor Technologies in Recreational and Professional Sports: A Scoping Review

Venek¹,

Kranzinger²,

Schwameder

et al. 2022

Sensors

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“…The authors [ 24 ] obtained results that allowed us to develop a system of teaching the technique of Chinese gymnastics. In [ 13 ], we also tried to obtain a model of karate movements based on Kinect, and then compare it with this model of movement for training purposes. The best results in comparing the data were obtained using F-DTW.…”

Section: Resultsmentioning

confidence: 99%

“…To teach the technique of movements in martial arts, the analysis of movements based on F-DTW (Fast Dynamic Time Warping) was used in [ 13 ]. In this article, the authors developed a system that recorded athletes’ movements using an infrared camera, and classified the data using F-DTW (Fast Dynamic Time Warping), and then issued a report that contained errors in performing the movement and ways to improve it.…”

Section: Introductionmentioning

confidence: 99%

Using an artificial neural network to develop an optimal model of straight punch in boxing and training in punch techniques based on this model and real-time feedback

Khasanshin

Osipov

2021

PLoS ONE

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The work was aimed to develop an optimal model of a straight punch in boxing based on an artificial neural network (ANN) in the form of a multilayer perceptron, as well as to develop a technique for improving the technique of punches in boxing based on feedback, when each punch delivered by a boxer was compared with the optimal model. The architecture of the neural network optimal punch model included an input layer of 600 nodes—the values of absolute accelerations and angular velocities, four hidden ones, as well as a binary output layer (the best and not the best punch). To measure accelerations and angular velocities, inertial measuring devices were attached to the boxers’ wrists. Highly qualified participated in the data set for the development of the optimal model. The best punches were chosen according to the criteria of strength and speed. The punch force was determined using a boxing pad with the function of measuring the punch force. In order to be able to compare punches, a unified parameter was developed, called the punch quality, which is equal to the product of the effective force and the punch speed. To study the effects of biofeedback, the boxing pads were equipped with five LEDs. The more LEDs were turned on, the more the punch corresponded to the optimal model. As a result of the study, an almost linear relationship was found between the quality of the punch of entry-level boxers and the optimal model. The use of feedback allowed for an increase in the quality of punches from 11 to 25%, which is on average twice as high as in the group where the feedback method was not used. Studies have shown that it is possible to develop an optimal punch model. According to the degree of compliance with this model, you can evaluate and train boxers in the technique.

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“…(Fazdinata & Haridito, 2018) [15] [16] [5]Meanwhile, the karate martial arts sport originated in the Okinawa area, Japan, which has two types of movements that are contested, namely kata and Kumite. (Emad et al, 2020) [1] [18]. Karate and taekwondo martial arts have similar characteristics and types of physical fitness needs, including anaerobic endurance, muscle strength, muscular strength endurance, explosive power, agility, flexibility, reaction speed, and cardiorespiratory or aerobic endurance.…”

Section: Introductionmentioning

confidence: 99%

“…From the middle of 2020 until now, elite athletes who will take part in the XX Papua National Sports Week (PON), including athletes from the martial arts of Sulawesi karate and taekwondo, are carrying out training independently before later participating in the National sports week in Papua province in October 2021 because of the spread of the coronavirus / COVID 19 [17]. To be able to provide recommendations to coaches and athletes regarding the effect of the training methods that have been given so far on the level of physical fitness of karate and taekwondo athletes, it is necessary to evaluate through regular physical tests to see the physical fitness charts of athletes from the two sports.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the physical fitness of karate and taekwondo elite athletes

Gunawan

2021

J Educ Health Sport

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Introduction. A coach compiles and determines a training program based on the physical fitness profile of the athlete. Central Sulawesi taekwondo and karate athletes have been undergoing independent training since mid-2020. Objective of the study. This study aims to investigate the comparison in physical fitness of elite athletes in taekwondo and karate Research methods. This study uses a causal-comparative method, where the researcher seeks to determine the cause or effect of the differences that occur between groups. The sample of this research is 20 elite athletes. Evaluation of physical abilities or physical fitness is an instrument used to measure the physical fitness of taekwondo and karate athletes. An independent sample t-test was used for comparison of independent samples. Research result and Conclusion. The results and conclusions of the study indicate that descriptively the speed, endurance of abdominal muscle strength, and endurance of thigh muscle strength, agility, flexibility, leg reaction speed, and cardiovascular endurance of taekwondo athletes are higher than karate athletes, while for leg muscle strength and breathing karate athletes are higher than taekwondo athletes. Sig value. (2 tailed) or p-value <0.05, it can be concluded that there is a significant difference in the variable components of physical fitness, abdominal muscle strength, agility, flexibility in leg reaction speed, and cardiovascular endurance between taekwondo athletes and karate athletes. Whereas in the variable components of physical fitness, speed, endurance, thigh muscle strength, and leg and respiratory muscle strength, there were no significant differences between taekwondo athletes and karate.

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iKarate: Karate Kata Guidance System

Cited by 12 publications

References 14 publications

Human Movement Quality Assessment Using Sensor Technologies in Recreational and Professional Sports: A Scoping Review

Human Movement Quality Assessment Using Sensor Technologies in Recreational and Professional Sports: A Scoping Review

Using an artificial neural network to develop an optimal model of straight punch in boxing and training in punch techniques based on this model and real-time feedback

Comparison of the physical fitness of karate and taekwondo elite athletes

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