Inertial Measurement Unit Analysis for Providing Greater Diagnostic Value During the Modified 5-0-5 Change of Direction Test

Date
2023
Authors
Ryan, Chloe
Uthoff, Aaron
McKenzie, Chloe
Cronin, John
Supervisor
Item type
Journal Article
Degree name
Journal Title
Journal ISSN
Volume Title
Publisher
Sport and Exercise Science New Zealand
Abstract

Timing gates are currently the most common piece of equipment for measuring change of direction (COD) performance, however, they provide only a total time metric. A better understanding of the kinematics and kinetics during a COD movement beyond total time would provide coaches with a more comprehensive understanding of COD movement and how it can be improved. Therefore, the aim of this study was to determine the reliability of an inertial measurement unit (IMU) insole for measuring peak acceleration, peak deceleration, maximum speed, and ground contact time during a modified 5-0-5 change of direction (COD) test. Additionally, the strength of association between these IMU variables and timing light metrics was explored. Ten elite female netball athletes (age = 24.9 ± 5.0 years, height = 180.1 ± 6.5 cm, weight = 81.3 ± 15.0 kg) performed a modified 5-0-5 COD test across three testing occasions. Analysis revealed moderate to excellent relative consistency (ICC = 0.57 – 0.94) and acceptable absolute consistency (CV = 1.8 – 9.5%). Correlations ranged from 0.04 to 0.95, with peak acceleration having the strongest correlation with total time (r = 0.95). It appears that IMU insoles can be used to reliably measure performance during a COD task and provide additional diagnostics beyond time metrics.

Description
Keywords
42 Health Sciences , 4207 Sports Science and Exercise , 4207 Sports science and exercise
Source
The Journal of Sport and Exercise Science, ISSN: 2703-240X (Print); 2703-240X (Online), Sport and Exercise Science New Zealand, 7(2), 54-61. doi: 10.36905/jses.2023.02.07
Rights statement
A submission to JSES implies that materials described in the manuscript, including all relevant raw data, will be freely available to any researcher wishing to use them for non-commercial purposes, without breaching participant confidentiality. JSES strongly encourages authors to make available to readers, if requested, all datasets upon which the conclusions of the paper rely. We encourage authors to ensure that their datasets are either deposited in publicly available repositories (where available and appropriate) or presented in the main manuscript or additional supporting files whenever possible.