Deakin University
Browse

File(s) under permanent embargo

Inertial sensors are a valid tool to detect and consistently quantify jumping

Version 2 2024-06-04, 08:48
Version 1 2018-09-24, 08:33
journal contribution
posted on 2024-06-04, 08:48 authored by Rhys Spangler, Timo Rantalainen, Paul B Gastin, Daniel Wundersitz
Considering the large and repetitive loads associated with jumping in team sports, automatic detection and quantification of jumping may show promise in reducing injury risks. The aim of this study was to validate commercially available inertial-movement analysis software to detect and quantify jumping in team sports. In addition, the test-retest reliability of the software to quantify jumping was assessed. Seventy-six healthy male participants completed a team sport circuit six times containing seven common movements (including three countermovement and two single-leg jumps) whilst wearing an inertial sensor (Catapult Sports, Australia). Jump detection accuracy was assessed by comparing the known number of jumps to the number recorded by the inertial movement analysis software. A further 27 participants separately performed countermovement and single-leg jumps at 33%, 66% and 100% of maximal jump height over two sessions. Jump height quantification accuracy was assessed by comparing criterion three-dimensional motion analysis-derived heights to that recorded by the inertial movement analysis software. Test-retest reliability was assessed by comparing recorded jump heights between both testing sessions. Catapult's inertial movement analysis software displayed excellent jump detection accuracy (96.9%) and test-retest jump height quantification reliability (ICC: 0.86 [countermovement jump], 0.88 [single-leg jump]). However, significant mean bias (-2.74 cm [95% LoA -10.44 - 4.96]) was observed for jump height quantification. Overall, Catapult's inertial movement analysis software appears to be a suitable method of automatically detecting jumping in team sports, and although reliable, caution is advised when using the IMA software to quantify jump height.

History

Journal

International journal of sports medicine

Volume

39

Pagination

802-808

Location

New York, N.Y.

eISSN

1439-3964

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2018, Georg Thieme Verlag KG Stuttgart

Issue

10

Publisher

Thieme Medical Publishers