File 26_mox files comfortable speed.

This data belongs to a manuscript submitted to Data in Brief, in which the content and lay-out of this data is described in detail. Data overviews (including figures and tables for age and gender groups) can be found at OSF | Normative 3D gait data of healthy subjects walking at three different speeds on an instrumented treadmill in virtual reality.A normative gait dataset of 246 healthy adults (122 men / 124 women, range in age 18-91 years, body weight 46.80-116.10 kg, height 1.53-1.97 m and BMI 18.25-35.63 kg/m²) is presented and publicly shared for three walking speed conditions.Three dimensional gait analysis was performed at the Computer Assisted Rehabilitation Environment (CAREN) at the Maastricht University Medical Centre (MUMC+). Subjects walked on the instrumented treadmill surrounded with twelve 3D cameras, three 2D cameras and a virtual environment projected on a 180° screen using the Human Body Lower Limb Model with trunk markers (HBM-II) as biomechanical model.Subjects walked at comfortable walking speed, 30% slower and 30% faster. These walking speed conditions were applied in a random sequence. Comfortable walking speed was determined using a RAMP protocol: subjects started to walk at 0.5 m/s and every second the speed was increased wit 0.01 m/s until comfortable speed was reached. The average of three repetitions was considered the comfortable speed. For each walking speed condition, 250 steps were recorded.The 3D gait data was collected using the D-flow CAREN software. Raw data were processed in Matlab (Mathworks 2016), including quality check, step determination and the exportation of data to xls. Processed data includes spatiotemporal parameters, medio-lateral (ML) and back-forward (BF) margins of stability (MoS), 3D joint angles, anterior-posterior (AP) and vertical GRFs, 3D joint moments and 3D joint power of both legs.The attached files include he raw data presented as .mox files for each adult for walking at comfortable speed. The .mox files contain subject data (e.g. gender, body mass, knee and ankle width), marker position and force plate data, kinematic data (joint angles), kinetic data (GRF, joint moment, joint power) generated by CAREN software (D-flow).The title of this file (26_mox files) corresponds to the associated manuscript (submitted to Data in Brief).

本数据集隶属于一篇投稿至《Data in Brief》的学术手稿，其中对本数据集的内容与布局进行了详细阐述。相关数据概览（包含年龄与性别分组的图表）可在OSF平台获取：《Normative 3D gait data of healthy subjects walking at three different speeds on an instrumented treadmill in virtual reality》。

本研究公开共享了246名健康成年人的标准化步态数据集，其中男性122名、女性124名，年龄跨度为18~91岁，体重46.80~116.10 kg，身高1.53~1.97 m，身体质量指数（BMI，Body Mass Index）为18.25~35.63 kg/m²，涵盖三种步行速度条件。

三维步态分析在马斯特里赫特大学医学中心（Maastricht University Medical Centre, MUMC+）的计算机辅助康复环境（Computer Assisted Rehabilitation Environment, CAREN）中完成。受试者在配备测力平台的跑台上行走，周围布置有12台三维摄像机、3台二维摄像机，并通过180°屏幕投射虚拟环境，采用带躯干标记点的人体下肢模型（HBM-II, Human Body Lower Limb Model with trunk markers）作为生物力学分析模型。

受试者分别以舒适步行速度、慢30%速度与快30%速度行走，三种速度条件以随机顺序呈现。舒适步行速度通过RAMP方案确定：受试者以0.5 m/s的初始速度开始行走，每1秒速度提升0.01 m/s，直至达到舒适速度，取三次重复测试的平均值作为最终舒适速度。每种步行速度条件下，共记录250个步态步数。

三维步态数据通过D-flow CAREN软件采集。原始数据在Matlab（MathWorks 2016）中进行处理，包括质量校验、步数识别，并将数据导出为xls格式。处理后的数据包含时空参数、内外侧（ML, medio-lateral）与前后向（BF, back-forward）稳定裕度（MoS, margins of stability）、三维关节角度、前后向（AP, anterior-posterior）与垂直地面反作用力（GRF, ground reaction force）、三维关节力矩以及双侧下肢的三维关节功率。

附带文件包含以.mox格式存储的原始数据，对应每名受试者在舒适步行速度下的行走数据。.mox文件包含受试者信息（如性别、体重、膝踝宽度）、标记点位置与测力平台数据、运动学数据（关节角度）以及由CAREN软件（D-flow）生成的动力学数据（地面反作用力、关节力矩、关节功率）。

本文件（包含26个.mox文件）的标题与投稿至《Data in Brief》的相关手稿一一对应。