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的时间演化过程，非线性分析方法需采用长时且无间断的时间序列数据。
本研究采集了20名健康受试者在跑步机上完成5次行走测试（每次时长至少5分钟）的全身步态模式，实验涵盖两类体重扰动条件：减重条件分别为40%和20%负荷，使用标注为har40、har20的减重吊带；增重条件分别为40%和20%负荷，使用标注为wei40、wei20的负重背心，并以正常体重条件（normg）作为对照。
所有受试者及各实验条件下的数据均以.mat格式文件提供。