The relationship between inertial measurement unit-derived 'force signatures' and ground reaction forces during cricket pace bowling

Sports Biomechanics
Samuel J CallaghanSophia Nimphius

Abstract

This study assessed the reliability and validity of segment measured accelerations in comparison to front foot contact (FFC) ground reaction force (GRF) during the delivery stride for cricket pace bowlers. Eleven recreational bowlers completed a 30-delivery bowling spell. Trunk- and tibia-mounted inertial measurement units (IMUs) were used to measure accelerations, converted to force, for comparisons to force plate GRF discrete measures. These measures included peak force, impulse and the continuous force-time curve in the vertical and braking (horizontal) planes. Reliability and validity was determined by intra-class correlation coefficients (ICC), coefficient of variation (CV), Bland-Altman plots, paired sample t-tests, Pearson's correlation and one-dimensional (1D) statistical parametrical mapping (SPM). All ICC (0.90-0.98) and CV (4.23-7.41%) were acceptable, except for tibia-mounted IMU braking peak force (CV = 12.44%) and impulse (CV = 18.17%) and trunk vertical impulse (CV = 17.93%). Bland-Altman plots revealed wide limits of agreement between discrete IMU force signatures and force plate GRF. The 1D SPM outlined numerous significant (p < 0.01) differences between trunk- and tibia-located IMU-derived measures and force p...Continue Reading

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Citations

Oct 21, 2020·International Journal of Environmental Research and Public Health·Robert G LockieRobin M Orr
Oct 1, 2020·International Journal of Sports Physiology and Performance·Samuel J CallaghanSophia Nimphius
Oct 4, 2020·Journal of Strength and Conditioning Research·Robert G LockieErika Hernandez
Apr 27, 2021·Journal of Strength and Conditioning Research·Robert G LockieMegan B McGuire
Sep 12, 2021·BMC Sports Science, Medicine and Rehabilitation·Matthew ConstableMichael Kingsley
Nov 24, 2021·Journal of Sports Sciences·Daniel J EpifanoKane J Middleton

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Methods Mentioned

BETA
microsensors

Software Mentioned

MT Manager
MATLAB
Bioware
Statistics Package for Social Sciences
PlayerLoad

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