Related Experiment Video
Updated: Jun 19, 2026
Home-Based Monitor for Gait and Activity Analysis
Published on: August 8, 2019
Development and validation of a user-friendly data logger (SUDALS) for use with flexible electrogoniometers to
Vivek P Indramohan1, G Valsan, Philip J Rowe
1University of Strathclyde, Bioengineering Unit, Wolfson Centre, Glasgow, UK.
Objective:
Our aim was to develop and validate a user-friendly data logger system (SUDALS) for use with flexible electrogoniometry.
Methods:
Data pertaining to flexion/extension of the knee from 10 normal subjects were collected during a range of activities of daily living (ADL) such as walking, ascending and descending stairs, getting in and out of a chair and deep squatting. The accuracy, reliability and reproducibility of the data from SUDALS were verified by comparing against the data simultaneously collected from the Vicon system.
Results:
The results of these studies indicate that the SUDALS together with flexible electrogoniometers is able to produce stable, precise, accurate and repeatable knee flexion/extension angles with little variation existing between the data produced by the SUDALS, the Vicon system and that reported in the literature.
Conclusion:
The SUDALS together with flexible electrogoniometers is a useful clinical tool, capable of recording knee flexion/extension angles accurately during ADL.
