速度滑冰经济性与运动表现及下肢运动学特征的相关性研究

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关键词：速度滑冰；运动经济性；氧耗量；惯性动作捕捉

文章编号：1001-747X（2025）02-0226-10 文献标志码：A 中图分类号：G862.180.462

DOI：10.16063/j.cnki.issn1001-747x.2025.02.010

Performance and Leg Kinematics Correlate to Speed Skating Economy in Trained Speed Skaters

GUO Lei1²，LIU Yu1 ，YANG Jintian³，1

（1.School of Exercise and Health，Shanghai University of Sport，Shanghai 2OO438，China;

.Physical Education Department，Shandong Technologyand Business University，Yantai 264Oo5，Shandong，China;

3.School of Public Administration，Hebei Universityof Economicsand Business，Shijiazhuang O5oo61，China）

Abstract：ObjectiveTo explore therelationshipbetween speed skating economy（SSE），athletic performance，and lower extremity kinematics.Method3O excellentmale long-distance speedskaters wererecruited to measure theanaerobic threshold speed and SSE at 70% ， 80% and 90% anaerobic threshold speed with portable gas metabolizer.The inertial motion capture system obtained the Kinematic indicators of 80% anaerobic threshold speed.ResultsSports performance and SSE 0 r=0.706～0.743，P<0.001 ）showed a high correlation；SSE was highly correlated with single step length （ r=0.603，P= 0.016），and moderately correlated with double support time （ r=0.454，P=0.034） . It was moderately correlated with the acceleration of thigh（ 'r=0.512，P=0. 032， ），shank（ r=0. 475，P=0. 041Ω） and foot （r=0.431，P=0.029） .Itwas moderately correlated with hip joint （ r=0.562，P=0.035） and highly correlated with knee flexion angle （ 0.027）.There was a moderate correlation between ankle rotation angle （r=0. 435，P=0. 029） ）and foot sagittal axis acceleration ），and a high correlation between the ratio of peak acceleration of vertical axis and frontal axis （ r=0.712，P=0.019 ）.ConclusionElite athletes have beter SSE.Adequate skating distance and time，appropriate skating angle and timing and smooth movement connection are conducive to improving the SSE of athlete

Key words ：speed skating；economy kinematics； oxygen cost of transport； inertial motion capture

截至2022年北京冬奥会，我国速度滑冰长距离项目（ ⩾1500m ）在国际大赛上尚未获得1枚奖牌，成绩与短距离项目差距明显。（剩余13395字）