Developed by the National Research Centre for the Working Environment in Copenhagen.
The Acti4 program is a Matlab script for analysis of data recorded by ActiGraph (AG) model GT3Xplus, Axivity model AX3, ActivPAL or Sens accelerometers and an ActiHeart (AH) or a Bod-yguard2 (Firstbeat) monitor for heart rate recording. The input data are typically recorded by a set of accelerometer units attached to the thigh, hip, arm and trunk during several days (e.g. 7 days) and AH data for 3-4 days. The output data includes analysis of activity type (lying, sitting, standing, walking etc.), arm and trunk inclination and heart rate load for selected periods of work and leisure.
If you are using acti4, you can locate the user manual, detailed explanations of the output parameters, and various documents that describe the functionality and usage instructions for acti4 within the documentation folder.
Acti4 has reached its final version (v2007, July 2020). We have decided not to pursue further development or updates for this software, as we are focusing on developing the python based system called Motus instead (link below). Please note, while there will be no new updates, the current version will remain available for download and use.
Detection of physical activity types using triaxial accelerometers
Detection of kneeling and squatting during work using wireless triaxial accelerometers
If you are using Acti4 in your research, you can use the following citation
APA:
The National Research Centre for the Working Environment (NFA). (2020). Acti4 (Version v2007) [Computer software]. https://github.com/motus-nfa/Acti4
BibTex:
@software{The_National_Research_Centre_for_the_Working_Environment_NFA_Acti4_2020,
author = {The National Research Centre for the Working Environment (NFA)},
month = jul,
title = {{Acti4}},
url = {https://github.com/motus-nfa/Acti4},
version = {v2007},
year = {2020}
}
Motus - link will be available once github repository is published