Neuromuscular control of the knee joint during basketball season in male youth players

IF 0.9 Q4 SPORT SCIENCES

Acta Gymnica Pub Date : 2019-09-30 DOI:10.5507/ag.2019.011

M. Strniště, K. Hůlka, M. Lehnert, E. Maixnerová, R. Vařeková, Sarka Lazecka

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引用次数: 2

Abstract

Background: Basketball players are among the players with a great risk of anterior cruciate ligament injury due to the high-intensity manoeuvres which have been identified as very common factors preceding this injury. Objective: This study aimed to assess differences in leg stiffness and reactive strength throughout a competitive season in youth basketball players and to assess the effect of age and performance level on these variables. Methods: The research study involved a total of 48 male basketball players from the age group U14 and U16 played the first and second highest league in Czech Republic. Reactive strength index (RSI) and leg stiffness were measured at the beginning of the season, mid-season, and at the end of the season. Analysis of Variance for repeated measures was used to identify the influence of age, season phases, and levels of performance to monitored variables. Results: The results showed significant changes among season phases in RSI (F = 4.48, p = .014) and relative leg stiffness (F = 7.17, p = .002) in observed players, however significantly higher values at the end of the season than at its beginning were found in RSI only (p = .014). Differences between subgroups with different levels of performance were not significant in both categories as well as age differences. Conclusions: The current study did not point-out to significant changes among season phases in reactive strength and leg stiffness in adolescent basketball players. The study did not confirm that reactive strength and leg stiffness is gradually improving during adolescence and suggestion that level of performance positively influences reactive strength and leg stiffness was confirmed only in the case of reactive strength.

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青年男子篮球运动员膝关节的神经肌肉控制

背景:由于高强度的运动，篮球运动员是前交叉韧带损伤的高危人群之一，而高强度的运动是导致前交叉韧带损伤的常见因素。目的:本研究旨在评估青少年篮球运动员在整个竞技赛季中腿部僵硬和反应性力量的差异，并评估年龄和表现水平对这些变量的影响。方法:选取捷克第一、第二职业篮球联赛U14、U16年龄段的48名男子篮球运动员为研究对象。在赛季开始、赛季中期和赛季结束时测量反应性强度指数(RSI)和腿部僵硬度。使用重复测量的方差分析来确定年龄、季节阶段和表现水平对监测变量的影响。结果:结果显示，观察到的球员的RSI (F = 4.48, p = 0.014)和相对腿刚度(F = 7.17, p = 0.002)在赛季阶段之间发生了显著变化，但只有RSI在赛季结束时的值明显高于赛季开始时的值(p = 0.014)。不同表现水平的亚组之间的差异在这两个类别以及年龄差异上都不显著。结论:目前的研究没有指出青少年篮球运动员的反应性力量和腿部僵硬在赛季阶段有显著的变化。该研究没有证实反应性力量和腿部僵硬度在青春期逐渐改善，并且表明表现水平对反应性力量和腿部僵硬度的积极影响仅在反应性力量的情况下得到证实。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Gymnica SPORT SCIENCES-

CiteScore

2.00

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： The journal "Acta Gymnica" (ISSN 2336-4912 (Print); ISSN 2336-4920 (On-line)), published formerly as "Acta Universitatis Palackianae Olomucensis. Gymnica" (ISSN 1212-1185 (Print); ISSN 1213-8312 (On-line)), focuses on presenting results of research studies and theoretical studies from the field of kinanthropology. The scope of the journal covers topics related to biomechanics, exercise physiology, physiotherapy, somatometry, sports psychology, sports training, physical education, public health, etc. The journal also welcomes submissions that present results of interdisciplinary research.