Ninapro dataset 4 (Cometa Wave Plus + Dormo)
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The 4th Ninapro database includes 10 intact subjects recorded with "Cometa" electrodes (http://www.cometasystems.com/). The database is thoroughly described in the paper: "Pizzolato et al., Comparison of Six Electromyography Acquisition Setups on Hand Movement Classification Tasks, Plos One 2017 (accepted).". Please, cite this paper for any work related to the 5th Ninapro database. The dataset is part of the Ninapro database (http://ninapro.hevs.ch/). Please, look at the database for more information. Acquisition Protocol The subjects repeat several movements represented by movies that are shown on the screen of a laptop. The experiment is divided in three exercises: 1. Basic movements of the fingers 2. Isometric, isotonic hand configurations and basic wrist movements 3. Grasping and functional movements During the acquisition, the subjects were asked to repeat the movements with the right hand. Each movement repetition lasted 5 seconds and was followed by 3 seconds of rest. The protocol includes 6 repetitions of 52 different movements (plus rest) performed by 10 intact subjects. The movements were selected from the hand taxonomy as well as from hand robotics literature. Acquisition Setup The muscular activity is gathered using 12 active single–differential wireless electrodes from Cometa. The electrodes are positioned as shown in the figure: eight electrodes are equally spaced around the forearm in correspondence to the radio humeral joint; two electrodes are placed on the main activity spots of the flexor digitorum and of the extensor digitorum; two electrodes are placed on the main activity spots of the biceps and of the triceps. The described locations have been chosen in order to combine a dense sampling approach with a precise anatomical positioning strategy. The electrodes were fixed on the forearm using their standard adhesive bands. The sEMG signals are sampled at a rate of 2 kHz. During the acquisition, the subjects were asked to repeat the movements with the right hand. Each movement repetition lasted 5 seconds and was followed by 3 seconds of rest. The protocol includes 6 repetitions of 52 different movements (plus rest) performed by 10 intact subjects. The movements were selected from the hand taxonomy as well as from hand robotics literature. Data Sets For each exercise, for each subject, the database contains one matlab file with synchronized variables. The variables included in the matlab files are: • subject: the subject number; • sensor: the name of the sEMG sensor; • frequency: the frequency in Hertz of the recorded data • exercise: exercise number; • emg: sEMG signal. Columns 1-8 are the electrodes equally spaced around the forearm at the height of the radio humeral joint. Columns 9 and 10 contain signals from the main activity spot of the muscles flexor and extensor digitorum superficialis, while columns 11 and 12 contain signals from the main activity spot of the muscles biceps brachii and triceps brachii. • stimulus: the original label of the movement repeated by the subject; • restimulus: the corrected stimulus, processed with movement detection algorithms; • repetition: stimulus repetition index; • rerepetition: restimulus repetition index; • age: subject’s age; • gender: subject’s gender, ”m” for male ”f” for female; • weight: subject’s weight in kilograms; • height: subject’s height in centimeters; • laterality: subject’s laterality, ”r” for right-handed, ”l” for left-handed; • circumference: circumference of the subject’s forearm at the radio-humeral joint height, measured in centimeters;
第四版Ninapro数据库（Ninapro Database）包含10名健康受试者，采用Cometa电极（http://www.cometasystems.com/）进行数据采集。该数据库的详细说明可参见论文："Pizzolato等人，六种肌电采集方案在手部运动分类任务中的对比研究，PLOS ONE 2017（已录用）"。若开展与第五版Ninapro数据库相关的研究，请引用该论文。本数据集属于Ninapro数据库（http://ninapro.hevs.ch/），如需获取更多信息，请访问该数据库官网。 采集协议 受试者需重复笔记本电脑屏幕上展示的影片所呈现的多项手部动作。实验分为三个任务： 1. 手指基础动作 2. 等长、等张手部姿态及基础腕部动作 3. 抓握与功能性动作 采集过程中，要求受试者使用右手完成动作。每项动作重复时长为5秒，随后伴随3秒的休息时段。本采集方案包含10名健康受试者完成52种不同动作（含休息状态）的6次重复动作。所选动作源自手部动作分类学以及手部机器人学相关文献。 采集设置 肌肉活动通过12个来自Cometa公司的有源单差分无线电极采集。电极的放置位置如图所示：8个电极沿前臂等间距分布，对应桡肱关节高度；2个电极分别放置于指浅屈肌与指浅伸肌的主要活动位点；另外2个电极分别放置于肱二头肌与肱三头肌的主要活动位点。上述位置的选择兼顾了密集采样策略与精准的解剖学定位原则。电极通过配套的粘性胶带固定于前臂。表面肌电（sEMG）信号的采样率为2 kHz。 采集过程中，要求受试者使用右手完成动作。每项动作重复时长为5秒，随后伴随3秒的休息时段。本采集方案包含10名健康受试者完成52种不同动作（含休息状态）的6次重复动作。所选动作源自手部动作分类学以及手部机器人学相关文献。 数据集详情 针对每个任务与每位受试者，数据库中均包含一份同步变量的Matlab文件。Matlab文件中包含的变量如下： • subject：受试者编号； • sensor：表面肌电传感器名称； • frequency：记录数据的采样频率，单位为赫兹； • exercise：任务编号； • emg：表面肌电（sEMG）信号。其中第1至8列对应桡肱关节高度处前臂等间距分布的8个电极的信号；第9、10列对应指浅屈肌与指浅伸肌主要活动位点的电极信号；第11、12列对应肱二头肌与肱三头肌主要活动位点的电极信号； • stimulus：受试者完成动作的原始标签； • restimulus：经动作检测算法处理后的校正动作标签； • repetition：原始动作重复次数索引； • rerepetition：校正后动作重复次数索引； • age：受试者年龄； • gender：受试者性别，"m"代表男性，"f"代表女性； • weight：受试者体重，单位为千克； • height：受试者身高，单位为厘米； • laterality：受试者利手性，"r"代表右利手，"l"代表左利手； • circumference：受试者前臂桡肱关节高度处的周长，单位为厘米；
