Database of EMG signals extracted from four hand movements

The database is composed of samples of EMG signals captured from 4 hand movements performed by two people: Participant 1 and Participant 2. Participant 1 has cerebral palsy, while the other does not have any diagnosed disability. The signals were captured by two pairs of bipolar electrodes and two Olimex Shield EMG / EKG plates (ch1 and ch2), each channel represents the potential difference between two electrodes where the first pair (ch1) was positioned at the ends of the lower muscle of the anti-arm. And the second (ch2), in posterior muscle of the anti-arm. All movements were performed with the arm at rest and the palm pointing upwards. There are two files for each movement ('Movimento'_ch1 and' Movimento'_ch2) where each line of the file represents a signal of 1600 samples of the movement performed. each file has 1600 samples (400 for each movement). The movements are: <ROTULOS> <MOVEMENT> <DESCRIPTION> 1 --------- Open (123 amostars) --------------- open the palm 2 --------- Bass (127 samples) ----------------- move open hand down 3 --------- Up (119 samples) -------------------- move open hand up 4 --------- Close (131 samples) ---------------- Close hand本数据库包含两名受试者（受试者1与受试者2）完成4种手部动作时采集的肌电（Electromyography, EMG）信号样本。受试者1患有脑瘫，另一名受试者无确诊残疾。信号采集采用两对双极电极与两块Olimex Shield EMG/EKG采集板（通道ch1与ch2），每个通道对应两个电极间的电位差：第一对电极（ch1）置于前臂屈肌的两端，第二对电极（ch2）置于前臂伸肌的后侧。所有动作均在手臂放松、掌心朝上的状态下完成。每种动作对应两个文件（'Movimento'_ch1与'Movimento'_ch2），文件内每一行代表对应动作的一段含1600个采样点的信号。每个文件包含1600个采样点（每个动作对应400个采样点）。本次采集的4种动作详情如下：1. 张开（共123个采样点）：张开手掌；2. 下放（共127个采样点）：将张开的手向下移动；3. 上抬（共119个采样点）：将张开的手向上移动；4. 握拳（共131个采样点）：合拢手掌。