Journal of Applied Sports Sciences 10(1): 3-15, doi: 10.37393/JASS.2026.10.01.1
Sampling frequency impact on countermovement jump metrics
expand article infoPaul Donahue, Lindsey Legg§, Madeline R. Klubertanz|, Mianli G. Patton, Tristan L. Young
‡ University of Southern Mississippi, Hattiesburg, United States of America§ Loughborough University, Loughborough, United Kingdom| Auburn University, Auburn, United States of America¶ University of Georgia, Athens, United States of America
Open Access
Abstract
Purpose: Sampling frequency is a methodological consideration that can infl uence force-time data outcomes and calculations. The purpose of this investigation was to examine diff erences in countermovement jump performance from data obtained at three diff erent sampling frequencies. Methods: 85 recreationally trained individuals performed 3 jump trials on a dual-force plate, sampled at 2400 Hz. Each trial was then resampled to 1200 and 600 Hz. Results: Repeated-measures ANOVA revealed no statistically signifi cant diff erences in sampling frequencies. Pearson’s product moment correlations revealed significant moderate to very large (r = .47 – .75) between 600 and 2400 Hz and large to very large relationships between 600 and 1200 Hz (r = .5 – .76). Signifi cant large to near perfect relationships were seen between 1200 and 2400 Hz (r = .87 – .99). Conclusions: Though no variables demonstrated statistically signifi cant diff erences, the stronger relationships and higher levels of agreement between 1200 and 2400 Hz, suggest that a minimum of 1000 Hz be used when collecting force-time data during the countermovement jump.
Keywords
Force-Time Analysis, Countermovement Jump, Methodology, Sampling Frequency
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