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Validation of accelerometer data for measuring impacts during jumping and landing tasks

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conference contribution
posted on 01.01.2010, 00:00 authored by Jacqueline Tran, Kevin Netto, Brad AisbettBrad Aisbett, Paul Gastin
The purpose of this study was to examine the validity of a commercially-available accelerometer, as used in the field team sports context. Ten adult participants completed two movement tasks: 1) a drop landing task from 30-cm, 40-cm and 50-cm heights [DLAND], and 2) a countermovement jumping task [CMJ]. Peak acceleration values, both smoothed and unsmoothed, occurring in the longitudinal axis [Y] and calculated to produce vector magnitude values [VM], were compared to peak vertical ground reaction force values [VGRF]. All acceleration measures were moderately correlated (r = 0.45 – 0.70), but also significantly higher than weight-adjusted VGRF, for both tasks. Though the raw acceleration measures were mostly above the acceptable limit for error (> 20%), the smoothed data had reduced error margins by comparison, most of which were well below 20%. These results provide some support for the continued use of accelerometer data, particularly when smoothed, to accurately quantify impacts in the field.

History

Event

International Conference on Biomechanics in Sports (28th : 2010 : Marquette, Mich.)

Pagination

1 - 4

Publisher

International Society of Biomechanics in Sports

Location

Marquette, Mich.

Place of publication

Konstanz, Germany

Start date

19/07/2010

End date

23/07/2010

ISSN

1999-4168

Language

eng

Publication classification

E1 Full written paper - refereed

Copyright notice

2010, The Authors

Editor/Contributor(s)

R Jensen, W Ebben, E Petushek, C Richter, K Roemer

Title of proceedings

Proceedings of the 28th International Conference on Biomechanics in Sports (2010)

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