EMG elbow dataset

This dataset contains the elbow's surface electromyography (sEMG) and kinematic (joint angle) data of ten subjects (6 males and 4 females) when performing different exercises of Flexion - Extension and Pronation - Supination. For the Flexion - Extension movements, the data was collected with the subject standing performing the movement with his arm next to the body; for the Pronation - Supination movements, the subject was seated in a chair with his forearm supported on a table. The EMG data was acquired using a Shimmer3 EMG device and the joint angle was estimated using the integrated IMUs in the Shimmer3 device. The following excercises were performed by each subject: Flexion - Extension without load, Flexion - Extension with 3lb dumbbel, Flexion - Extension with 5lb dumbbell, Pronation - Supination without load, Pronation - Supination with 3lb dumbbell and Pronation - Supination with 5lb dumbbell.

The data is stored in a folder for each one of the subjects, each folder contains the following 13 files: one file named subject_info includes the subject ID, age, height, weight, arm length, hand width and gender. The remaining 12 files (2 for each exercise) are named with the following convention (id: subject id, movement: excercised performed, set: training or test set, load: external load in grams).

The data in each file is structured as follows:

raw sEMG Channel 1 | raw sEMG Channel 2 | filtered sEMG Channel 1 | filtered sEMG Channel 2 | joint angle

For Flexion - Extension: Channel 1 - Biceps Brachii and Channel 2 - Triceps Brachii.

For Pronation - Supination: Channel 1 - Pronator Teres and Channel 2 - Biceps Brachii.

The sEMG signal was filtered using a fourth order Chebyshev filter with cutoff frequencies of 10Hz and 500Hz, using a band ripple of 5%.

本数据集包含10名受试者（6名男性、4名女性）在完成屈伸（Flexion - Extension）与旋前-旋后（Pronation - Supination）两类不同动作时的肘部表面肌电（surface electromyography, sEMG）及运动学（关节角度）数据。
屈伸动作采集时，受试者保持站立姿态，手臂紧贴身体完成动作；旋前-旋后动作采集时，受试者端坐于椅上，前臂支撑于桌面。
肌电数据通过Shimmer3肌电设备采集，关节角度则通过该设备内置的惯性测量单元（Inertial Measurement Units, IMUs）估算得到。
每名受试者均完成以下6项训练：无负重屈伸、手持3磅哑铃屈伸、手持5磅哑铃屈伸、无负重旋前-旋后、手持3磅哑铃旋前-旋后，以及手持5磅哑铃旋前-旋后。
数据按受试者分文件夹存储，每个受试者文件夹包含13个文件：1个名为subject_info的文件，记录受试者编号、年龄、身高、体重、臂长、手宽及性别；剩余12个文件（每项动作对应2个文件）的命名遵循如下规则：(id: 受试者编号, movement: 完成的动作, set: 训练集或测试集, load: 外部负重，单位为克)。
每个文件内的数据列结构依次为：原始肌电通道1、原始肌电通道2、滤波后肌电通道1、滤波后肌电通道2、关节角度。
屈伸动作中，通道1对应肱二头肌（Biceps Brachii），通道2对应肱三头肌（Triceps Brachii）；旋前-旋后动作中，通道1对应旋前圆肌（Pronator Teres），通道2对应肱二头肌。
表面肌电信号采用四阶切比雪夫滤波器进行滤波，截止频率为10Hz与500Hz，带内波纹为5%。