AGREEMENT AMONG COUNTERMOVEMENT JUMP FORCE-TIME VARIABLES OBTAINED FROM A WIRELESS DUAL FORCE PLATE SYSTEM AND AN INDUSTRY GOLD STANDARD SYSTEM

Authors

Andrew J. Badby, University of SalfordFollow
Peter Mundy, Hawkin Dynamics, inc.Follow
Paul Comfort, University of SalfordFollow
Jason Lake, University of ChichesterFollow
John J. McMahon, University of SalfordFollow

Category

Methods / Statistics

Document Type

Paper

Abstract

The purpose of this study was to explore the agreement between a wireless and portable dual force plate system, and an in-ground force plate system, which is an industry gold standard. The countermovement jump (CMJ) was compared across the two systems because it is the most popular force plate test in sports settings. Recreationally active adults (n=20) performed three maximal-effort CMJs on the portable force plates which were placed atop two adjacent in-ground force plates to enable simultaneous collection of raw force-time data (1000 Hz) over five seconds. Popular CMJ force-time variables were analysed for each system using a custom Microsoft Excel spreadsheet using criterion methods. Ordinary least products regression (OLPR) showed no fixed or proportional bias between the force plate systems for all variables. Thus, the portable force plate system may be considered a valid alternative to an industry gold standard for the assessment of CMJ force-time variables.

Recommended Citation

Badby, Andrew J.; Mundy, Peter; Comfort, Paul; Lake, Jason; and McMahon, John J. (2022) "AGREEMENT AMONG COUNTERMOVEMENT JUMP FORCE-TIME VARIABLES OBTAINED FROM A WIRELESS DUAL FORCE PLATE SYSTEM AND AN INDUSTRY GOLD STANDARD SYSTEM," ISBS Proceedings Archive: Vol. 40: Iss. 1, Article 14.
Available at: https://commons.nmu.edu/isbs/vol40/iss1/14