沈阳体育学院学报2018，Vol.37Issue(1)：70-74,5.
自由式滑雪空中技巧运动员落地稳定瞬间人体膝关节软骨损伤风险的研究
Injury Risk Assessment of Knee Joint Cartilage During Landing for the Athletes of Freestyle Skiing Aerials
摘要
Abstract
In order to evaluate and reveal the injury risk assessment and the mechanism of freestyle skiing aerials on knee joints' cartilage,the stress distribution of the knee joints' cartilage during landing of the athletes is studied and obtained. The kinematics analysis is carried out on the jumps of straight back flip 720° and straight back flip 360° tucked 360° at takeoff and landing moment,and the kinematics indexes of knee joint at the moment of stabilization during landing are ana-lyzed and calculated.The calculated results are treated as the boundary conditions,and are imported into the ABAQUS soft-ware based on knee-joint anatomical characteristics to conduct finite element analysis.The results show that at the mo-ment of landing after finishing the jump of straight back flip 720°,the phenomenon of stress concentration occurs around cartilage at the lateral femoral condyle,the anterior horn of the medial meniscus,the mid position of lateral meniscus and the central position of tibial cartilage surface.The tibial cartilages would bear nearly seven times body weight impact force. In conclusion,it is suggested that the athletes should strengthen the knees' stability exercise in daily training to reduce the impact of knees' instability caused by abrasion at the position of stress concentration.关键词
自由式滑雪空中技巧/膝关节软骨/运动损伤/有限元Key words
freestyle skiing aerials/knee joint cartilage/sports injuries/finite element分类
社会科学引用本文复制引用
付彦铭..自由式滑雪空中技巧运动员落地稳定瞬间人体膝关节软骨损伤风险的研究[J].沈阳体育学院学报,2018,37(1):70-74,5.基金项目
2015年辽宁省教育厅科学研究一般项目(L2015504) （L2015504）
沈阳体育学院重点学科建设项目(XKFX1503) （XKFX1503）
2016沈阳体育学院院管课题(2016KY08) （2016KY08）
沈阳市科技计划项目(F15-153-1-00). （F15-153-1-00）
