Combined effects of leg length discrepancy and the addition of distal mass on gait asymmetry
Combined effects of leg length discrepancy and the addition of distal mass on gait asymmetry
复制标题
DOI：
10.1016/j.gaitpost.2017.09.012
复制
发表时间：
2017-10-01
期刊：
影响因子：
2.4
通讯作者：
Reed, Kyle B.
中科院分区：
文献类型：
--
作者：
Muratagic, Haris;Ramakrishnan, Tyagi;Reed, Kyle B.
步态不对称通常是由于某种形式的身体损伤而引起的。例如，腿长差异（LLD）或肢体质量的变化可能导致不对称的步态模式。虽然增加质量和LLD已经分别进行了研究，这项研究研究如何步态模式的变化，作为一个不对称的改变腿的长度和质量在腿的远端的结果。时空和动力学步态的措施被用来研究的组合不对称的影响，把LLD和质量的对侧和同侧。对于所有五个参数，增加的质量和腿长的量存在统计学显著差异。与我们的假设相反，增加的质量和腿长之间没有显著的相互作用。在所有扰动中，质量和LLD的组合使步态参数比单一效应更对称。这些情况下，即使每个参数都有轻微的不对称性，而不是驱动一个参数的对称性和其他参数的更大的不对称性的配置具有较低的整体不对称性的潜力。
Asymmetries in gait often arise due to some form of physical impairment. For example, a leg length discrepancy (LLD) or the change of limb mass can result in asymmetric gait patterns. Although adding mass and LLD have been studied separately, this research studies how gait patterns change as a result of asymmetrically altering both leg length and mass at a leg's distal end. Spatio-temporal and kinetic gait measures are used to study the combined asymmetric effects of placing LLD and mass on the opposite and same side. There were statistically significant differences for the amount of mass and leg length added for all five parameters. Contrary to our hypothesis, there was no significant interaction between the amount of mass and leg length added. There were cases in all perturbations where a combination of mass and LLD make a gait parameter more symmetric than a single effect. These cases exhibit the potential for configurations with lower overall asymmetries even though each parameter has a slight asymmetry as opposed to driving one parameter to symmetry and other parameters to a larger asymmetry.