HDsEMG-EXO manuscript data

This dataset contains all the raw HD-EMG data, the extracted and manually edited motor units for each participant and a synthesis of the outcomes. FILE NAME : Data.mat - This file displays the center of pressure (COP), interference electromyography (Interference_EMG), motor units discharge rate (MU_Discharge_rate) and kinematics data for each participant, each task and each condition. - The center of pressure and kinematics data is organized according the following structure: Outcome.Task.Condition. - The interference electromyography and motor units discharge rate data is organized according the following structure: Outcome.Muscle.Task.Condition. Muscle : GM, Gastrocemius Medialis; GL, Gastrocnemius Lateralis; SOL, Soleus; TA, Tibialis Anterior. - Each matrix contains 20 rows corresponding to each participant. For the motor units discharge rate data, the matrix can contain several columns corresponding to the different motor units identified and tracked across conditions. - Some rows are empty as we were not able to identify and tracked motor units across conditions for these participants. - For the soleus interference electromyography, the participant 16 is missing. We excluded this participant due to noisy signal and artifacts. This subject is not considered in the interference electromyography analysis. Similarly, the kinematics data for the participant 2 and 18 are missing as we cannot analyze the data due to technical issue.FILE NAME : PXX.mat - These files contain raw electromyography data for each participant, each muscle, each task and each condition. In addition, these files display the motor unit identified and manually edited (RH) using the MUedit software (Avrillon et al., 2024). Each file is organized according the following structure: [Participant_number].[task].[condition].mat - These files can be opened with Matlab (Mathworks) or the MUedit software. - Subject_number: 1 to 20 Task: Standing with eyes open; standing with eyes closed; standing on a foam surface with eyes closed; standing only on a single (dominant) leg with eyes open. - Conditions: Control, without the passive ankle exoskeleton; Exoskeleton, with passive ankle exoskeleton assistance. - VARIABLES: - signal: contains all the data and especially the raw electromyography signal (ParticipantNumber.Task.Condition.signal.data). - parameters: contains all the parameters of the decomposition. - edition: contains the edited pulse train and discharge times of the motor unit identified. Each signal displays 6 matrix corresponding to the 6 matrix of electrodes. - Matrix 1 and 2 correspond to the tibialis anterior, matrix 3 corresponds to the gastrocnemius medialis, matrix 4 corresponds to the gastrocnemius lateralis and matrix 5 and 6 correspond to the soleus. - For the participant 2 and 3, due to technical issues, we were forced to use only 5 matrix of electrodes. Therefore, for these two participants, matrix 1 corresponds to the tibialis anterior, matrix 2 corresponds to the gastrocnemius medialis, matrix 3 corresponds to the gastrocnemius lateralis and matrix 4 and 5 corresponds to the soleus. All the different variables present in these files are described in the user manual of the MUedit software.

本数据集包含所有原始高密度肌电图（HD-EMG）数据、为每位受试者提取并经人工编辑的运动单位，以及各项结果的汇总。

文件名：Data.mat
该文件展示了每位受试者、每项任务及每种条件下的压力中心（center of pressure, COP）、干扰肌电图（interference electromyography, Interference_EMG）、运动单位放电率（MU_Discharge_rate）及运动学数据。
- 压力中心与运动学数据的组织格式如下：Outcome.Task.Condition。
- 干扰肌电图与运动单位放电率数据的组织格式如下：Outcome.Muscle.Task.Condition。
肌肉缩写对应如下：GM为腓肠肌内侧头（Gastrocemius Medialis）；GL为腓肠肌外侧头（Gastrocnemius Lateralis）；SOL为比目鱼肌（Soleus）；TA为胫骨前肌（Tibialis Anterior）。
- 每个矩阵包含20行，分别对应20位受试者。对于运动单位放电率数据，矩阵可包含多列，分别对应在不同条件下识别并追踪得到的不同运动单位。
- 部分行数据为空，因无法为这些受试者完成跨条件的运动单位识别与追踪。
- 针对比目鱼肌的干扰肌电图数据，缺失了受试者16的数据：因该受试者的信号存在噪声与伪影，我们已将其排除，未纳入干扰肌电图的分析。同理，受试者2与18的运动学数据因技术问题无法分析，故缺失。

文件名：PXX.mat
此类文件包含每位受试者、每块肌肉、每项任务及每种条件下的原始肌电图数据。此外，该类文件还存储了使用MUedit软件（Avrillon等，2024）手动编辑（RH）得到的识别运动单位。每个文件的组织格式为：[Participant_number].[task].[condition].mat。
- 此类文件可使用MATLAB（MathWorks）或MUedit软件打开。
- 受试者编号范围为1至20；任务类型包括：睁眼站立、闭眼站立、闭眼站于泡沫垫上、仅单腿（优势腿）睁眼站立。
- 条件分为两种：Control（无被动踝关节外骨骼辅助）与Exoskeleton（搭载被动踝关节外骨骼辅助）。
- 变量说明：
- signal：包含所有数据，尤其包含原始肌电图信号（格式为ParticipantNumber.Task.Condition.signal.data）。
- parameters：包含肌电分解的所有参数。
- edition：包含已编辑的运动单位脉冲序列与放电时刻。
每个信号对应6组电极矩阵，具体对应关系如下：
矩阵1与矩阵2对应胫骨前肌；矩阵3对应腓肠肌内侧头；矩阵4对应腓肠肌外侧头；矩阵5与矩阵6对应比目鱼肌。
针对受试者2与3，因技术问题仅使用了5组电极矩阵，因此这两位受试者的矩阵对应关系调整为：矩阵1对应胫骨前肌，矩阵2对应腓肠肌内侧头，矩阵3对应腓肠肌外侧头，矩阵4与5对应比目鱼肌。
此类文件中的所有变量均已在MUedit软件的用户手册中进行了说明。