Ninapro

DB4 Data

Subject	Handedness	Gender	Age	Height	Weight	zip files
01	Right	Female	29	169	58	s1.zip
02	Right	Male	27	185	78	s2.zip
03	Right	Male	30	189	86	s3.zip
04	Right	Female	54	174	65	s4.zip
05	Left	Female	20	176	65	s5.zip
06	Right	Male	25	180	73	s6.zip
07	Left	Male	30	174	68	s7.zip
08	Right	Male	23	186	67	s8.zip
09	Right	Female	31	167	63	s9.zip
10	Right	Male	27	183	67	s10.zip

DB4 Guidelines

Overview

This Ninapro dataset includes sEMG and kinematic data from 10 intact subjects while repeating 52 hand movements plus the rest position.

Publications

The dataset is described in detail in the following scientific paper.
Please, refer to it for detailed guidelines and cite it in case you use this dataset.

• Pizzolato et al., Comparison of six electromyography acquisition setups on hand movement classification tasks, PLOS One, 2017

Instructions

Subjects

10 intact subjects.

Acquisition Setup

The sEMG data are acquired using 12 Cometa electrodes. The sEMG signals are sampled at a rate of 2 kHz.

Acquisition Protocol

The dataset includes 6 repetitions of 52 different movements.
The subjects are asked to repeat movements which were shown as movies on the screen of a laptop.
During the acquisition, the subjects were asked to repeat the movements with the right hand.
Each movement repetition lasted approximatively 5 seconds and was followed by 3 seconds of rest.

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.

Dataset variables

For each exercise, for each subject, the database contains one matlab file with synchronized variables. The variables included in the matlab files are:

• Subject: subject number.
• Sensor: name of the sEMG sensor
• Frequency: sampling frequency of the recorded data in Hertz
• Exercise: exercise number.
• Emg (12 columns): 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.
• Glove (22 columns): uncalibrated signal from the 22 sensors of the cyberglove.
  The cyberglove signal corresponds to raw data from the cyberglove sensors, which are expected to be proportional to the angles at the joints.
• Stimulus (1 column): the movement repeated by the subject, according to the displayed movie.
• Restimulus (1 column): the movement repeated by the subject, but with the duration of the movement label refined a-posteriori in order to better correspond to the real movement.
• Repetition (1 column): repetition of the stimulus.
• Rerepetition (1 column): repetition of restimulus.
• Age: age of the subject;
• Gender: gender, m for male f for female.
• Weight: weight in kilograms.
• Height: height in centimeters.
• Laterality: laterality, r for right-handed, l for left-handed.
• Circumference: circumference of the forearm at the radio-humeral joint height, measured in centimeters.

Acquisition procedure. The subjects are asked to mimic movies of movement shown on the screen of the laptop. sEMG signal is recorded with 10 electrodes (red, blue; the electrode on the flexor digitorum superficialis and part of the equally spaced electrodes are not represented due to perspective reasons).




Hand movements. Performed exercises: A, B, C.


Cyberglove sensors location.