DATASET for the manuscript titled "Does variability of footfall kinematics correlate with dynamic stability of the centre of mass during walking?"

Gait variability is a sensitive metric for assessing functional deficits in individuals with mobility impairments. To correctly represent the temporal evolution of gait kinematics, nonlinear measures require extended and uninterrupted time series.<br>The full-body gait patterns of twenty healthy subjects were captured during five walking trials (at least 5 minutes) on a treadmill under different weight perturbation conditions with both weight reductions (of 40 and 20% using a harness labelled har40 and har20) as well as weight additions (of 40% and 20% using weight vests labelled wei40 and wei20) and these were compared against normal weight condition (normg).<br><br>Data is presented at .mat files for all subjects and conditions.<br><br>

步态变异性（Gait variability）是评估运动障碍个体功能缺损的敏感指标。为准确表征步态运动学（gait kinematics）的时间演化过程，非线性分析方法需依赖更长且无间断的时间序列数据。
本研究在跑步机上开展五次行走试验（每次时长至少5分钟），采集了20名健康受试者的全身步态模式；实验涵盖多种体重扰动条件：分别通过标记为har40与har20的吊带装置实现40%、20%的体重减负，以及通过标记为wei40与wei20的负重背心实现40%、20%的体重增重，并将所有条件下的实验数据与正常体重对照组（normg）进行对比。
所有受试者各实验条件下的数据均以.mat格式文件提供。