青少年足球运动员的曲线冲刺加速-速度轮廓受到更紧的半径和冲刺侧优势的限制

IF 2.4 3区医学 Q3 BIOPHYSICS

Journal of biomechanics Pub Date : 2025-09-03 DOI:10.1016/j.jbiomech.2025.112938

Ažbe Ribič , Darjan Smajla , Oskar Cvjetičanin , Matic Sašek

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引用次数: 0

摘要

本文研究了在不同半径下，弱侧和强侧的加速度-速度分布（ASP）的变化规律。20名男性青少年足球运动员在三次训练中完成了30米直线和曲线短跑（12.15,11.15,9.15,7.15和6.15米半径）。使用GNSS设备记录冲刺速度和加速度随时间和距离的变化。分析了最大理论速度（S0）、加速度（A0）、平均速度斜率（ASslope）、平均速度下面积（ASParea）、冲刺速度为3 m/s时的加速度（A3）和冲刺时的曲线赤字（ASPdeficit）。用2 × 5方差分析和事后检验评价侧面、半径及其相互作用的影响。半径和侧边对所有变量均有显著影响（F≥3.50,p≤0.037,η2≥0.15）。ASParea和S0随着半径的增大而减小。A3和A0保持相对不变，导致更陡的斜率和更大的aspc赤字。在相同半径下，较弱侧CS的aspg面积较小，S0, A3， aspg缺损较大。青少年足球运动员曲线冲刺的ASP在两端（加速度和最高速度）都是侧向依赖的，而半径主要影响后期加速和最高速度的表现。在适应足球运动员的冲刺训练和基于加速度的外负荷监测时，应考虑这些观察结果。

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Curvilinear sprint acceleration-speed profile in youth soccer players is constrained by tighter radii and sprinting side dominance

This study investigated how the acceleration-speed profile (ASP) of the weaker and stronger side changes at different radii. Twenty male youth soccer players completed 30 m linear and curvilinear sprints (12.15, 11.15, 9.15, 7.15, and 6.15 m radius) in three training sessions. Sprint speed and acceleration over time and distance were recorded using a GNSS device. The maximum theoretical speed (S₀), the acceleration (A₀), slope of the ASP (AS_slope), the area under the AS_slope (ASP_area), the acceleration at a sprint speed of 3 m/s (A₃), and the curvilinear sprint deficit (ASP_deficit) of the individual sprints were analyzed. The effects of side, radius, and their interaction were evaluated with 2 × 5 ANOVA and the post hoc tests. A significant effect of radius and side was observed for all variables (F ≥ 3.50, p ≤ 0.037, η² ≥ 0.15). The ASP_area and S₀ decreased at tighter radii. The A₃ and A₀ remained relatively unchanged, resulting in a steeper AS_slope, and a larger ASP_deficit. At the same radius, the weaker side CS had a smaller ASP_area, S₀, A₃, and a larger ASP_deficit. The ASP of the curvilinear sprint in youth soccer players is side-dependent at both ends (acceleration and top speed), while radii mainly affect late acceleration and top speed performance. These observations should be considered when adapting soccer players’ sprint training and monitoring external load based on acceleration.

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来源期刊

Journal of biomechanics 生物-工程：生物医学

CiteScore

5.10

自引率

4.20%

发文量

345

审稿时长

1 months

期刊介绍： The Journal of Biomechanics publishes reports of original and substantial findings using the principles of mechanics to explore biological problems. Analytical, as well as experimental papers may be submitted, and the journal accepts original articles, surveys and perspective articles (usually by Editorial invitation only), book reviews and letters to the Editor. The criteria for acceptance of manuscripts include excellence, novelty, significance, clarity, conciseness and interest to the readership. Papers published in the journal may cover a wide range of topics in biomechanics, including, but not limited to: -Fundamental Topics - Biomechanics of the musculoskeletal, cardiovascular, and respiratory systems, mechanics of hard and soft tissues, biofluid mechanics, mechanics of prostheses and implant-tissue interfaces, mechanics of cells. -Cardiovascular and Respiratory Biomechanics - Mechanics of blood-flow, air-flow, mechanics of the soft tissues, flow-tissue or flow-prosthesis interactions. -Cell Biomechanics - Biomechanic analyses of cells, membranes and sub-cellular structures; the relationship of the mechanical environment to cell and tissue response. -Dental Biomechanics - Design and analysis of dental tissues and prostheses, mechanics of chewing. -Functional Tissue Engineering - The role of biomechanical factors in engineered tissue replacements and regenerative medicine. -Injury Biomechanics - Mechanics of impact and trauma, dynamics of man-machine interaction. -Molecular Biomechanics - Mechanical analyses of biomolecules. -Orthopedic Biomechanics - Mechanics of fracture and fracture fixation, mechanics of implants and implant fixation, mechanics of bones and joints, wear of natural and artificial joints. -Rehabilitation Biomechanics - Analyses of gait, mechanics of prosthetics and orthotics. -Sports Biomechanics - Mechanical analyses of sports performance.