Type

Conference Proceedings

Authors

Brian Caulfield
Niamh O'Mahony
William Johnston
Matthew Patterson

Subjects

Physiotherapy & Sport

Topics
biomedical measurement force platform force plate inertial measurement gait analysis clinical applications time step force sensors

Validation of temporal gait metrics from three IMU locations to the gold standard force plate (2016)

Abstract The purpose of this work is to compare temporal gait parameters from three different IMU locations to the gold standard force platform. 33 subjects (12 F, 21 M) performed twenty gait trials each while wearing inertial measurement units (IMUs) on the trunk, both shanks and both feet. Data was simultaneously collected from a laboratory embedded force plate. Step times were derived from the raw IMU data at the three IMU locations using methods that have been shown to be accurate. Step times from all locations were valid compared to the force plate. Foot IMU step time was the most accurate (Pearson = .991, CI width = 3.00e2), the trunk IMU was the next most accurate (Pearson = .974, CI width = 4.85e2) and shank step time was the least accurate (Pearson = .958, CI width = 6.80e2). All three sensing locations result in valid estimations of step time compared to the gold standard force plate. These results suggest that the foot location would be most appropriate for clinical applications where very precise temporal parameter detection is required.
Collections Ireland -> University College Dublin -> Insight Research Collection

Full list of authors on original publication

Brian Caulfield, Niamh O'Mahony, William Johnston, Matthew Patterson

Experts in our system

1
Brian Caulfield
University College Dublin
Total Publications: 331
 
2
William Johnston
University College Dublin
Total Publications: 19
 
3
Matthew Patterson
University College Dublin
Total Publications: 21