journal of Biomechanics publication

A new publication titled:

“The development and validation of using inertial sensors to monitor postural change in resistance exercise”

By Sam Gleadhill, Jim Lee, and Daniel James is now in press.

Sam is a new PhD student and this work is from his Honours research. Sam now has three publications from his honours year and is well on his way to establishing himself in the field of inertial sensor technology and its applications into lifting monitoring, both in the workplace and in sporting environments. Great work Sam.


This research presented and validated a method of assessing postural changes during resistance exercise using inertial sensors. A simple lifting task was broken down to a series of well-defined tasks, which could be examined and measured in a controlled environment. The purpose of this research was to determine whether timing measures obtained from inertial sensor accelerometer outputs are able to provide accurate, quantifiable information of resistance exercise movement patterns. The aim was to complete a timing measure validation of inertial sensor outputs. Eleven participants completed five repetitions of 15 different deadlift variations. Participants were monitored with inertial sensors and an infrared three dimensional motion capture system. Validation was undertaken using a Will Hopkins Typical Error of the Estimate, with a Pearson’s correlation and a Bland Altman Limits of Agreement analysis. Statistical validation measured the timing agreement during deadlifts, from inertial sensor outputs and the motion capture system. Timing validation results demonstrated a Pearson’s correlation of 0.9997, with trivial standardised error (0.026) and standardised bias (0.002). Inertial sensors can now be used in practical settings with as much confidence as motion capture systems, for accelerometer timing measurements of resistance exercise. This research provides foundations for inertial sensors to be applied for qualitative activity recognition of resistance exercise and safe lifting practices.

This is available to CDU students through the CDU library and if logged on, click this link to take you article.

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