摘要
目的:研究三维步态分析评定腓肠肌长度的可行性。方法:采用脊髓灰质炎后遗症患者作为足下垂病理模型12例;正常青少年10例作为对照组。采用三维动作分析系统采集步行时的动态运动数据,经建模分析求出腓肠肌长度;用量角器测量出测试对象踝背屈(被动活动)的角度值进行相关回归分析。结果:①脊髓灰质炎后遗症患者组与正常对照组身高差异无显著性(P>0.05),腓肠肌内/外侧头长度差异有显著性(P<0.05);②腓肠肌长度与踝背屈角度余弦值显著相关(P<0.05);③求出腓肠肌长度与踝背屈角度余弦值的线性回归方程(P<0.01)。结论:三维步态分析可以测定正常人和脊髓灰质炎后遗症足下垂患者腓肠肌长度的差别,从而判断跟腱挛缩情况,并为脊髓灰质炎后遗症足下垂患者康复训练或矫形手术提供实验依据。
Objective：To explore the application of 3-D gait analysis for dynamic measurement of gastrocnemius length.Method：The pathology models of footdrop with ankle plantar flexion were established in 12 victims of poliomyelitis sequela.Ten age-matched normal juveniles were included as the control.The 3-D motion analysis system was employed to obtain the data of dynamic segmental motion on walking.Mathematic modeling was established to calculate the length of gastrocnemius.The angle of ankle dorsiflexion（passive motion） was measured by goniometer.Result：①There was no significant difference of body height between patients with poliomyelitis sequela foot drop and the normal controls（P0.05）,but there were significant differences between the length of medial head and lateral head of gastrocnemius（P0.05）.②The length of gastrocnemius was significant correlated with the cosine value of ankle dorsiflexion angle（P0.05）.③The equation of linear regression between the relative gastrocnemius length and the cosine value of ankle dorsiflexion angle was significant（P0.01）.Conclusion：Ankle dorsiflexion angle during walking by 3-D motion analysis may estimate the length of gastrocnemius of normal persons and patients with poliomyelitis sequela footdrop,judge the contraction of achillotendon,and provide an important reference of orthopedic surgery and rehabilitation for patients with poliomyelitis sequela footdrop.
出处
《中国康复医学杂志》
CAS
CSCD
北大核心
2012年第3期231-234,共4页
Chinese Journal of Rehabilitation Medicine
