Measurement of Reaction Time in Qwan Ki Do

Cojocariu, Adrian

doi:10.5604/947454

Cited by 15 publications

(10 citation statements)

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“…Cojocariu, after analysing reaction times in athletes practicing combat sports and in a group of non-training people, observed that in the group of athletes practicing combat sports differences in reaction time for both hands were small and significantly better for the non-dominant hand, compared to the non-training group. However, in the group of athletes a much shorter RT time for the non-dominant hand was achieved, which suggests that the difference may result from systematic training and thus the frequent use of the non-dominant hand in martial arts [9]. Many researchers focusing on RT and its importance in sports assert that this indicator depends mostly on individual characteristics of the nervous and muscular system [19].…”

Section: Discussionmentioning

confidence: 99%

The impact of fencing training symmetrisation on simple reaction time

Johne

2021

Biomedical Human Kinetics

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Study aim: The symmetrisation of movements can be a way to develop individual coordinative skills, and to prevent the occur-rence of injuries. For this reason, in this study an attempt was made to evaluate and compare simple reaction time and movement time for épée fencers of different sports classes, and to determine the impact that three years of symmetrisation training and unilateral training have on the speed of reaction components and on dynamical asymmetry. Material and methods: The study was conducted on 60 women épée fencers of different sports classes, and it was repeated in two groups after three years of unilateral and symmetrisation training. Simple reaction time and movement time for the dominant and the non-dominant hand were analysed using Vienna Test System. Results: Women épée fencers of high sports class were characterised by a significantly faster reaction time than their less experienced colleagues. In tests conducted after three years of symmetrisation training, athletes from the experimental group achieved also much better results in reaction time (RT) than those from the control group training with the unilateral method. Conclusions: Long-time unilateral training of master class women épée fencers led to dynamical asymmetry, which in the future could cause injuries and have a negative impact on the development of selected motor skills. Symmetrical training conducted in the experimental group had a positive impact on reaction time indicators as well as on movement time indicators, and it prevented the occurrence of dynamical asymmetry in the tested competitors. Thus, it can be inferred that symmetrical exercises will have a positive impact on training effectiveness and on versatility of athletes.

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Section: Discussionmentioning

confidence: 99%

The impact of fencing training symmetrisation on simple reaction time

Johne

2021

Biomedical Human Kinetics

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“…Therefore, we suggest that the TReaction app can accurately measure response time during different techniques used in combat sports. This is relevant because response time is an important variable for combat sports [8,10,15,26]. As the TReaction app is a viable alternative to obtain and control the response time for combat sports athletes, it can possibly be used by athletes in other sports, physical trainers, and coaches to obtain time interval measurements between stimulus onset and the response time required for contacting a target with a strike.…”

Section: Discussionmentioning

confidence: 99%

Development of a Mobile Phone App for Measuring Striking Response Time in Combat Sports: Cross-Sectional Validation Study

Coswig

Ana

Coelho

et al. 2019

JMIR Mhealth Uhealth

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BackgroundTReaction is a mobile app developed to determine strike response time at low cost and with easy application in combat sports. However, the validity and accuracy of the response time obtained by the TReaction app has not yet been evaluated.ObjectiveThis study aimed to test the validity and reliability of the TReaction app in measuring motor response time in combat sports.MethodsA total of two athletes performed 59 strikes to assess the response time upon visual stimulus using the TReaction app simultaneously with a high-speed camera. Accuracy of the measure was verified using a computer simulator programmed to discharge visual stimuli and obtain the response time. Pearson correlation, Student t test for dependent samples, and the Bland-Altman analysis were performed. Accuracy was verified using the intraclass correlation coefficient. Effect size (g) and the typical error of measurement (TEM) were calculated. The significance level was set at P<.05.ResultsNo significant difference (P=.56) was found between both systems. The methods presented a very strong correlation (r=0.993). The magnitude of differences was trivial (g<0.25), and TEM was 1.4%. These findings indicate a high accuracy between the computer screen and the mobile app measures to determine the beginning of the task and the response time.ConclusionsOur findings suggest that the TReaction app is a valid tool to evaluate the response time in combat sports athletes.

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“…As for ResT, research suggests that it may be affected by various disruptions, physical exertion (Gierczuk et al, 2018), movement velocity, and agility (Zemková, 2016). Given that reacting quickly is a critical factor which can determine whether one wins (or loses) in combat sports (Gierczuk et al, 2017;Hermann et al, 2008), it is not surprising that understanding the mechanism and the effect of training on both RT and ResT has been of interest for quite some time (Cojocariu, 2011a;Gierczuk et al, 2018;Hermann et al, 2008;Mori, Ohtani, Imanaka, 2002;Petri et al, 2019;Zemková, 2016). The notion that RT and ResT are trainable is supported by papers demonstrating that experienced MA practitioners attain better results in choice reaction tasks than novice or untrained practitioners (Cojocariu, 2011b;Mori et al, 2002;Zemková, 2016).…”

Section: Mechanisms In Motor Control and Essential Definitionsmentioning

confidence: 99%

Motor Control Mechanisms and the Practice of Krav Maga—a Narrative Analysis

Mor

2021

Central European Journal of Sport Sciences and Medicine

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Krav Maga ('contact combat') is an Israeli hand-to-hand combat discipline that originated in the early 19 th century in response to life-threatening conflicts. Today, Krav Maga is a popular self-defense and martial art discipline practiced and taught throughout the world. One of the key features of Krav Maga that distinguishes it from other combat disciplines is its dependence on reflexive defense -a natural and immediate defensive reaction. However, the relevant literature has not discussed the motor control mechanisms that underlie reflexive defense in hand-to-hand combat or that account for its temporal characteristics. This introductory study argues that the reflexive defense at the core of Krav Maga is a genuine reflex mediated at the brainstem level. The paper also discusses some aspects of reaction in the context of self-defense and combat sports, and the implications for the debate on whether Krav Maga training should involve more than one combat response to any given threat.

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Measurement of Reaction Time in Qwan Ki Do

Cited by 15 publications

References 0 publications

The impact of fencing training symmetrisation on simple reaction time

The impact of fencing training symmetrisation on simple reaction time

Development of a Mobile Phone App for Measuring Striking Response Time in Combat Sports: Cross-Sectional Validation Study

Motor Control Mechanisms and the Practice of Krav Maga—a Narrative Analysis

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