首页> 外文会议>International Symposium on Biomechanics in Sports vol.1; 20050822-27; Beijing(CN) >DIFFERENT TECHNICAL STRATEGIES AND BIOMECHANICAL ASPECTS OF DOUBLE POLING IN ELITE CROSS-COUNTRY SKIING
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DIFFERENT TECHNICAL STRATEGIES AND BIOMECHANICAL ASPECTS OF DOUBLE POLING IN ELITE CROSS-COUNTRY SKIING

机译:精英越野滑雪双杆技术的不同策略和生物力学方面

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摘要

The purpose of this study was to analyse double poling (DP) regarding biomechanical performance determinants and different strategies. Eleven elite cross-country skiers performed DP at 85% of their maximal DP velocity (V_(85%)) during roller skiing (treadmill; 1° inclination) while pole forces and selected joint angles were recorded. A 2D video evaluation categorised skiers into two different DP strategy groups. Strategy A group showed higher elbow (p < 0.01) and hip flexion angular velocities, smaller minimum elbow, knee and hip angles, higher peak pole force, shorter time to peak pole force and a longer relative recovery time (p < 0.05), variables to which V_(85%) was significantly correlated (p < 0.05). DP strategy A provides an effective model for technique and specific strength training while its physiological economy has to be further investigated.
机译:这项研究的目的是分析有关生物力学性能决定因素和不同策略的双极化(DP)。 11名精英越野滑雪者在滑旱冰(跑步机; 1°倾斜度)期间以其最大DP速度(V_(85%))的85%进行了DP,同时记录了极力和选定的关节角度。 2D视频评估将滑雪者分为两个不同的DP策略组。策略A组显示较高的肘(p <0.01)和髋屈曲角速度,较小的最小肘,膝盖和臀部角度,较高的峰值极力,较短的峰值极力时间和较长的相对恢复时间(p <0.05),变量与V_(85%)显着相关(p <0.05)。 DP策略A为技术和特定强度的训练提供了有效的模型,同时其生理经济性有待进一步研究。

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