Variations of lower-limb joint kinematics associated with the use of different ankle joint models.
Variations of lower-limb joint kinematics associated with the use of different ankle joint models.
复制标题
与使用不同踝关节模型相关的下肢关节运动学的变化。
DOI：
10.1016/j.jbiomech.2022.111072
复制
发表时间：
2022
影响因子：
2.4
通讯作者：
C. Mazzà
中科院分区：
文献类型：
--
作者：
E. Montefiori;Claude Fiifi Hayford;C. Mazzà
依赖于全局优化的skeleton计算模型与步态分析一起被广泛用于估计关节运动学，但用于模拟踝关节复合体的自由度（DOF）和轴定义仍有争议。本文的目的是确定踝关节模型的选择是否也会严重影响其他关节的运动学估计。来自15名青少年参与者的步态和MRI数据被用于实现三个踝关节模型（M1，单自由度矢状运动; M2，两自由度矢状和额状运动; M3，三自由度）作为完整下肢骨骼模型的一部分。在个体和组水平上评估了使用全局优化计算的下肢关节和足部进展角度的差异。此外，这些差异对关节之间的相关性和计算的均方根偏差（RMSD）的影响进行了研究。在个体水平上，髋关节屈曲、内收和旋转的模型间变化分别高达4.2°、9.1°和15.0°，膝关节屈曲高达6.5°。尽管所有模型的胫距轴相同，但在推出时发现M2的背屈更大，高达19.3°（平均9.1°）。对于M1，发现足部进展与踝关节和膝关节矢状运动之间的相关性更强。最后，当使用不同的模型时，RMSD导致参与者的排名不一致。总之，踝关节模型的选择会影响近端下肢关节运动学的估计，这应该阻止使用不同模型构建的数据集之间的比较。
Skeletal computational models relying on global optimisation are widely used alongside gait analysis for the estimate of joint kinematics, but the degrees of freedom (DOFs) and axes definitions to model the ankle complex are still debated. The aim of this paper is to establish whether ankle modelling choices would also critically affect the estimate of the other joints' kinematics. Gait and MRI data from fifteen juvenile participants were used to implement three ankle joint models (M1, one-DOF sagittal motion; M2, two-DOFs sagittal and frontal motions; M3, three-DOFs) as part of a full lower-limb skeletal model. Differences in lower-limb joint and foot progression angles calculated using global optimisation were evaluated both at individual and group level. Furthermore, the influence of these differences on the correlations between joints and on the calculations of the root mean square deviation (RMSD) were investigated. Inter-model variations at individual level reached up to 4.2°, 9.1°, and 15.0° for hip flexion, adduction, and rotation, respectively, and up to 6.5° for knee flexion. Despite the tibiotalar axis being the same for all models, up to 19.3° (9.1° on average) larger dorsiflexion was found at push-off with M2. A stronger correlation between foot progression and ankle and knee sagittal movements was found for M1. Finally, RMSD led to inconsistent ranking of the participants when using different models. In conclusion, the choice of the ankle joint model affects the estimates of proximal lower-limb joint kinematics, which should discourage comparisons across datasets built with different models.
DOI：
10.1115/1.4034263
发表时间：
2016-09-01
影响因子：
1.7
作者：
Roach, Koren E.;Wang, Bibo;Anderson, Andrew E.
通讯作者：
Anderson, Andrew E.
影响因子：
2.4
作者：
Wang B;Roach KE;Kapron AL;Fiorentino NM;Saltzman CL;Singer M;Anderson AE
通讯作者：
Anderson AE