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首页> 外文期刊>Sports biomechanics >Stance limb kinetics of older male athletes endurance running performance
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Stance limb kinetics of older male athletes endurance running performance

机译：老年男运动员耐力跑成绩的肢体动力学

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The aim of this study was to examine the age-based, lower limb kinetics of running performances of endurance athletes. Six running trials were performed by 24 male athletes, who were distinguished by three age groupings (S35: 26-32years, M50: 50-54 years, M60+: 60-68years). Lower limb coordinate and ground reaction force data were collected using a nine camera infra-red system synchronised with a force plate. A slower anteroposterior (M +/- SD S35=4.13 +/- 0.54m/s: M60+=3.34 +/- 0.40m/s, p<0.05) running velocity was associated with significant (p<0.05) decreases in step length and discrete vertical ground contact force between M60+and S35 athletes. The M60+athletes simultaneously generated a 32% and 42% reduction (p<0.05) in ankle joint moment when compared to the M50 and S35 athletes and 72% (p<0.05) reduction in knee joint stiffness when compared to S35 athletes. Age-based declines in running performance were associated with reduced stance phase force tolerance and generation that may be accounted for due to an inhibited force-velocity muscular function of the lower limb. Joint-specific coaching strategies customised to athlete age are warranted to maintain/enhance athletes' dynamic performance.
机译：这项研究的目的是检查耐力运动员跑步表演的基于年龄的下肢动力学。由24位男运动员进行了6次跑步试验，这些运动员按三个年龄段（S35：26-32岁，M50：50-54岁，M60 +：60-68岁）进行了区分。下肢坐标和地面反作用力数据是使用与测力板同步的九个摄像机红外系统收集的。较慢的前后位（M +/- SD S35 = 4.13 +/- 0.54m / s：M60 + = 3.34 +/- 0.40m / s，p <0.05）运行速度与步长显着降低（p <0.05）有关M60 +和S35运动员之间的离散垂直地面接触力。与M50和S35运动员相比，M60 +运动员同时使踝关节力矩降低32％和42％（p <0.05），与S35运动员相比使膝关节僵硬度降低72％（p <0.05）。基于年龄的跑步成绩下降与姿势相力耐受性和生成能力下降有关，这可能是由于下肢的力速肌肉功能受到抑制所致。为确保/增强运动员的动态表现，有针对运动员年龄定制的联合特定教练策略的保证。

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