Knee Pads Do Not Affect Physical Performance in Young Female Volleyball Players

Lazić, Anja; Bratić, Milovan; Stamenković, Stevan; Andrašić, Slobodan; Stojiljković, Nenad; Trajković, Nebojša

doi:10.3390/children8090748

Cited by 2 publications

(1 citation statement)

References 55 publications

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“…Agility is often defined as the ability to quickly and efficiently change the speed and direction of movement [ 1 , 2 ]. It belongs to the domain of speed-explosives abilities that are determined by training status and genetic potential [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Predictors of Reactive Agility in Early Puberty: A Multiple Regression Gender-Stratified Study

et al. 2022

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Reactive agility (RAG) is a crucial factor of success in sports, but there are practically no studies dealing with RAG among children. The main aim of this study was to identify predictors of RAG among early pubescent boys and girls. The participants were primary school boys (n = 73) and girls (n = 59) aged 11–12. The criterion variable was the originally developed “Triangle” test of reactive agility (Triangle-RAG). Predictors included anthropometric/body composition indices (body height, seated height, body mass, and body fat percentage) and motor abilities (10 and 20 m sprint, broad jump, squat jump, countermovement jump, drop jump, and two tests of change of direction speed—CODS (Triangle-CODS, and 20 yards)). The results of the univariate analysis showed that anthropometric/body composition indices were not significantly correlated to TRAG (0–4% of the common variance), while all motor abilities were significantly associated with TRAG (7–43% of the common variance) in both genders. Among boys, 64% of the TRAG variance was explained by multiple regression, with TCODS as the only significant predictor. Among girls, multiple regression explained 59% of the TRAG-variance with TCODS, countermovement jump, and drop jump as significant predictors. Differences in multivariate results between genders can be explained by (i) greater involvement in agility-saturated sports (i.e., basketball, tennis, soccer) in boys, and (ii) advanced maturity status in girls. The lack of association between anthropometric/body built and TRAG was influenced by the short duration of the TRAG (3.54 ± 0.4 s). Our findings suggest that pre-pubescent and early pubescent children should be systematically trained on basic motor abilities to achieve fundamentals for further developing RAG. Since in this study we observed predictors including only athletic abilities and anthropometric/body composition, in future studies, other motor abilities, as well as cognitive, perceptual, and decision-making parameters as potential predictors of RAG in children should be investigated.

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Section: Introductionmentioning

confidence: 99%

Predictors of Reactive Agility in Early Puberty: A Multiple Regression Gender-Stratified Study

et al. 2022

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Finite-element simulation of functional knee sleeves based on three-dimensional modeling of the knee joint

Gu,

Yan,

Shi

et al. 2024

Textile Research Journal

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Knee sleeves are one of the most satisfying and widely used items of protective equipment for sports enthusiasts. Achieving an effective balance between functionality and comfort is a key factor in the design of knee sleeves. However, there are still some problems with the knee protection products currently on the market, such as poor thermal and moisture comfort, difficulty in putting on and taking off, slippage during doing sports, and the lack of a timely and effective feedback mechanism that cannot guide the user to actively adjust their movement posture to avoid sports injuries. To improve the function and pressure comfort of the human body after wearing knee sleeves, this study took the knee joint as the research object, established a three-dimensional knee joint model through computed tomography (CT) scanning and Mimics software, and then built a finite-element model under the contact state between the human body and pressure clothing on this basis. Moreover, ABAQUS was used for finite-element simulation to obtain the pressure and displacement distribution of knee joints after wearing knee sleeves. In order to further investigate the stress state and deformation trend of knee joint after wearing knee sleeves, each section of the human body at the knee joint was divided into four regions according to the angle, and the functional relationship between pressure and displacement was obtained by curve fitting. This study has significance for the investigation of the pressure comfort threshold of knee sleeves and the optimization of the design of functional knee sleeves.

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Knee Pads Do Not Affect Physical Performance in Young Female Volleyball Players

Cited by 2 publications

References 55 publications

Predictors of Reactive Agility in Early Puberty: A Multiple Regression Gender-Stratified Study

Predictors of Reactive Agility in Early Puberty: A Multiple Regression Gender-Stratified Study

Finite-element simulation of functional knee sleeves based on three-dimensional modeling of the knee joint

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