Kinematic adaptations in sprint acceleration performances without and with the constraint of holding a field hockey stick
Kinematic adaptations in sprint acceleration performances without and with the constraint of holding a field hockey stick
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在没有和有握持曲棍球杆的限制的情况下冲刺加速性能的运动学适应
DOI：
10.1080/14763141.2012.749507
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发表时间：
2013
影响因子：
2.2
通讯作者：
M. Gittoes
中科院分区：
文献类型：
--
作者：
M. Wdowski;M. Gittoes
本研究的目的是调查在没有（自由条件）和（约束条件）携带曲棍球棒的限制下执行基于冲刺的任务时所做的技术适应。 18 名经验丰富的大学男子曲棍球运动员（年龄 = 20 ± 1 岁，体重 = 73.3 ± 7.1 kg，身高 = 1.78 ± 0.05 m）进行了 3 次自由和 3 次受限最大冲刺加速。自动运动分析系统跟踪矢状面活动标记位置 (200 Hz)。 18-22 m（自由：8.03 ± 0.43 m/s；约束：7.93 ± 0.36 m/s）间隔期间的 M 冲刺速度在自由和约束条件之间存在显着差异（p = 0.03）。虽然在 2-13 m 捕获体积中，自由条件和受限条件下的 M 步长和步频相似，但自由条件下的步幅速度快了 0.10 m/s (p = 0.03)。在短跑 2-12 m 间隔期间着陆时髋部角速度以及自由和约束条件之间的整体冲刺技术协调方面，自由和约束运动学曲线 (p ≤ 0.05) 之间还发现了显着差异。表现和技术的调整表明，田径运动的短跑训练方案应整合特定的设备限制，以确保明确复制支撑卓越表现的技能的机械需求。
The aim of this study was to investigate the technique adaptations made when performing sprint-based tasks without (free condition) and with (constrained condition) the constraints of carrying a field hockey stick. Three free and three constrained maximal sprint accelerations were performed by 18 experienced university male field hockey players (age = 20 ± 1 years, body mass = 73.3 ± 7.1 kg, and stature = 1.78 ± 0.05 m). An automatic motion analysis system tracked sagittal plane active marker locations (200 Hz). M sprint velocity during the 18–22 m (free: 8.03 ± 0.43 m/s; constrained: 7.93 ± 0.36 m/s) interval was significantly (p = 0.03) different between free and constrained conditions. While the M stride length and stride frequency was similar between free and constrained conditions in the 2–13 m capture volume, the free condition elicited a 0.10 m/s faster (p = 0.03) stride velocity. Further significant differences were found between free and constrained kinematic profiles (p ≤ 0.05) for the hip angular velocity at touchdown during the 2–12 m interval of the sprints and in the overall sprint technique coordination between free and constrained conditions. Performance and technique adaptations indicated that sprint-training protocols for field sports should integrate specific equipment constraints to ensure explicit replication of the mechanical demands of the skills underpinning superior performance.
DOI：
10.1249/mss.0b013e318162d162
发表时间：
2008-04-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Bezodis, Ian N.;Kerwin, David G.;Salo, Aki I. T.
通讯作者：
Salo, Aki I. T.