Category
Methods / Statistics
Document Type
Paper
Abstract
The subtalar joint axis influences biomechanical variables, especially regarding the lower limbs. The purpose of this study was to develop a measurement system for the subtalar joint axis based on inertial measurement units. Different development steps were taken, like an axis estimation algorithm using a principal component analysis and multiple approaches for the reference of the subtalar joint axis to the anatomical coordinate system. In the current development step, we try to solve the reference problem by using fused IMU data to track the offset to the foots longitudinal axis. As of now it is possible to determine the axis with a range of 4° for the inclination and 7° for the deviation within 5 measurements. Although, this approach leaves room for improvement, it could already be an acceptable method for large-scale studies and an easy-to-use alternative to imaging methods.
Recommended Citation
Seeger, Anja and Alt, Wilfried
(2024)
"The development of an IMU based measurement system for the determination of the subtalar joint axis,"
ISBS Proceedings Archive: Vol. 42:
Iss.
1, Article 207.
Available at:
https://commons.nmu.edu/isbs/vol42/iss1/207
