Repeatability of a piezoelectric force platform to measure impact metrics for a single model of football

MILLS, Katie L, BILLINGHAM, Johsan, CHOPPIN, Simon, DUNN, Marcus, SENIOR, Terry and GOODWILL, Simon (2022). Repeatability of a piezoelectric force platform to measure impact metrics for a single model of football. Sports Engineering, 25 (1): 24.

[img]
Preview
PDF
Technical Note Published Article.pdf - Published Version
Creative Commons Attribution.

Download (834kB) | Preview
Official URL: https://link.springer.com/article/10.1007/s12283-0...
Open Access URL: https://link.springer.com/content/pdf/10.1007/s122... (Published version)
Link to published version:: https://doi.org/10.1007/s12283-022-00389-y
Related URLs:

    Abstract

    The visco-elastic properties of a football influence how it bounces and therefore its performance in a game. Previously, high-speed camera footage has been used to quantify deformation, coefficient of restitution and contact time for an impact between a football and a rigid surface but these systems do not provide any information on the forces acting on the football during the impact. The aim of this study was to determine the repeatability of measuring the peak impact force, impulse, rise time and loading rate for four samples of the same model of football using a commercial force platform (Kistler 9281EA). A football impacted the floor-mounted piezoelectric-type force platform at 6.04 and 19.4 m s−1. High absolute (coefficient of variation (CV) ≤ 10%) and relative (intraclass correlation coefficient (ICC) ≥ 0.94) repeatability was observed for repeated impacts at both velocities. The minimal detectable differences were calculated to evaluate the ability for the force platform to be used to make meaningful comparisons between footballs. For all metrics, the minimum detectable difference accounted for less than 5% of the mean value. Therefore, it can be concluded that provided the difference in impact metrics between football models exceeds the minimal detectable difference, the commercial force platform can be used to measure and detect differences in physical impact metrics between models of footballs.

    Item Type: Article
    Uncontrolled Keywords: 0906 Electrical and Electronic Engineering; 0913 Mechanical Engineering; 1106 Human Movement and Sports Sciences
    Identification Number: https://doi.org/10.1007/s12283-022-00389-y
    SWORD Depositor: Symplectic Elements
    Depositing User: Symplectic Elements
    Date Deposited: 07 Nov 2022 14:33
    Last Modified: 07 Nov 2022 14:33
    URI: https://shura.shu.ac.uk/id/eprint/30985

    Actions (login required)

    View Item View Item

    Downloads

    Downloads per month over past year

    View more statistics