Is international junior success a reliable predictor for international senior success in elite combat sports?

Li, Pingwei; Bosscher, Veerle De; Pion, Johan; Weissensteiner, Juanita R.; Vertonghen, Jikkemien

doi:10.1080/17461391.2018.1439104

Cited by 34 publications

(32 citation statements)

References 29 publications

(34 reference statements)

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“…For this purpose, it is useful to apply models of prediction of sporting success, as is the case with this study. From the findings obtained, it can be inferred that the level of physical fitness shown in the junior category is an indicator of future sporting success, an idea previously suggested by other authors regarding combat sports 24 .…”

Section: Discussionsupporting

confidence: 54%

Does Physical Fitness Predict Future Karate Success? A Study in Young Female Karatekas

Quel¹,

Ara²,

Izquierdo³

et al. 2020

International Journal of Sports Physiology and Performance

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Objective: To assess the discriminative ability of several fitness dimensions and anthropometric attributes for forecasting competitive success in female karate athletes. Methods: Fitness and anthropometric data from 98 female junior karatekas obtained during the training camps of the Spanish National Karate Federation between 1999 and 2012 were used. Binary logistic-regression models were built to ascertain whether the set of fitness and anthropometric variables could predict future sporting-performance levels. For this purpose, participants were classified as elite (medalist in World or European Championships in the senior category) or subelite (at least a medalist in Spanish National Championships in cadet or junior but not included in the elite group), according to the results achieved up to 2019. Results: Participants who were subsequently classified as elite karatekas showed significant differences in agility, upper- and lower-body muscle power, and general fitness in comparison with those who were classified as subelite in the senior category. A total of 57 junior female karatekas who were subsequently classified as elite (7) or subelite (50) were included in the binary logistic-regression analysis. Resultant models showed significant capacity to predict karate performance. Conclusions: Assessing physical fitness in junior categories can be a useful resource to determine future karate success. Coaches in this sport should pay special attention to the levels of muscle power and agility shown by their athletes, as both fitness dimensions could be indicators of future sportive success.

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Section: Discussionsupporting

confidence: 54%

Does Physical Fitness Predict Future Karate Success? A Study in Young Female Karatekas

Quel¹,

Ara²,

Izquierdo³

et al. 2020

International Journal of Sports Physiology and Performance

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“…This is in line with studies in other sports such as combat sports, which showed that profiles of athletes become more specific as they grow older. 37…”

Section: Discussionmentioning

confidence: 99%

Discriminating performance profiles of cycling disciplines

Mostaert

Laureys

Vansteenkiste

et al. 2020

International Journal of Sports Science & Coaching

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The aim of this study was to document the athletic profiles of adolescent and young adult high performance cycling athletes and to investigate to what extent different cycling disciplines can be discriminated from each other based on a generic test battery. A total of 243 adolescent (12.0- 15.99 y) and 63 young adult (>=16 y) male cyclists from road cycling, track cycling, cyclo-cross, and mountain bike (MTB) participated in the study. All participants performed four anthropometric, five physical, three motor coordination, and two cycling-specific tests. Using discriminant analyses, the young adult athletes could be correctly classified to their discipline for 80.7%. Track cyclists outperformed the other disciplines in explosive and coordinative skills while for cyclo-cross, and particularly MTB, the performance on the shuttle bike test seemed to be a distinctive variable. Road cyclists however, showed a significant overlap in performance characteristics with the other disciplines. In spite of the less pronounced discriminative character in the adolescent cycling population (51.0%), the discriminative characteristics are in line with the results of the young adults. This study allows to orient cyclists towards their best-fitted discipline in young adulthood. The relevance of these findings for coaches, experts and federations with respect to early/late specialization, and talent orientation are discussed.

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“…DA is used when groups are a priori known. Each subject (case) must have a score in one or more quantitative predictor measures, and a score on a group measure [28] Discriminant function analysis is a classification. The predictive model of a group membership according to the athlete`s level can be useful to rank athletes based on the selected parameters.…”

Section: Introductionmentioning

confidence: 99%

Are isokinetic leg torques and kick velocity reliable predictors for competitive success in taekwondo athletes?

Moreira

Falcó

Menegaldo

et al. 2020

Preprint

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27The aim of the study was to analyzed the relationship between isokinetic knee 28 and hip peak torques and Roundhouse-kick velocities and expertise level (Elite vs. 29 Subelite) of Taekwondo athletes. Seven elite and seven sub-elite athletes were tested for 30 kick kinematic, power of impact and for isokinetic peak torque (PT) at slow (60 o /s) and 31 high (240 o /s) concentric mode. PTs were compared between groups and correlated with 32 the data of kick performance. It was found inter-group differences in hip flexors and 33 extensors PT at the isokinetic fast speed. The hip flexion PT at 60 o /s and 240 o /s were 34 negatively correlated with the kick time (R = -0.46, and R = -0.62, respectively). Hip 35 flexion torque at 60 o /s was also positively correlated (R = 0.52) with the peak of linear 36 velocity of the foot (LVF) and the power of impact (R = 0.51). Peak torque of hip 37 extension at 60 o /s and hip abduction at 240 o /s were correlated with the LVF (R= 0.56 38 and R = 0.46). Discriminant analysis presented an accuracy of 85.7% in predicting 39 expertise level based on fast torques of hip flexion and extension and on the knee 40 extension velocity during the kick. This study demonstrated that hip muscles strength is 41 probably the dominant muscular factor for determining kick performance. Knee angular 42 velocity combined with hip torques are the best discriminators for the competitive level 43 in taekwondo athletes.44 45 Introduction 52The most popular technique in Taekwondo (TKD) combats is the Roundhouse 53 Kick, or Bandal Chagui [1][2][3]. Defined as a multiplanar and multi-joint action[2-6] , is 54 described as a proximo-distal sequence, wherein structures nearest the center of the 55 body (proximal segments) develop first in temporal order of joints movement, while 56 distal segments lag behind, and are thereafter followed by its relative distal segment 57 acceleration while proximal segments decelerate [7][8][9]. 58According to this principle, the largest possible velocity of the proximal segment, linked 59 by the interaction with the following segments, determines the terminal velocity or 60 impact magnitude [3][4][5]7,[9][10][11][12][13]. Angular acceleration of a segment is caused by muscle 61 torques that control the proximal joint [6,7,15] and by the angular momentum 62 transmitted to the next (distal) segment [7,15,16]. The resultant torque produced during 63 the kick depends on the athlete's coordinative capacity to maximize the agonist and 64 minimize the antagonist torque [7,17,18] . 65During a kick, torques are generated at either low or high angular velocities [7,19], 66 which can be reasonably reproduced by isokinetic dynamometers [20][21][22]. Such 67 instruments present high reliability [23], validity [22], and control of speed and range of 68 motion [22,23]. Previous researchers [6,24] demonstrated that elite athletes of combat 69 sports presented improved capacities to produce torque compared with sub-elite athletes 70 or non-athletes, in isokinetic velocities from 30 ...

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Is international junior success a reliable predictor for international senior success in elite combat sports?

Cited by 34 publications

References 29 publications

Does Physical Fitness Predict Future Karate Success? A Study in Young Female Karatekas

Does Physical Fitness Predict Future Karate Success? A Study in Young Female Karatekas

Discriminating performance profiles of cycling disciplines

Are isokinetic leg torques and kick velocity reliable predictors for competitive success in taekwondo athletes?

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