Kriterijska veljavnost dvotočkovne metode za ocenjevanje profila sila-hitrost-moč

slovenian

2023

volume 71, issue 1/2

Univerza v Ljubljani, Fakulteta za šport

The purpose of this study was to investigate the criterion validity of the two-point method for Force-velocity-Power (F-v-P) relationship assessment. F-v-P outcome variables calculated using the two-point method were compared with the same variables calculated using the five-point method, which was chosen as the credible criterion. The second objective of this study was to investigate whether the validity of the two-point method correlated with the maximum strength of the participants. Fortyfour students from the Faculty of Sport participated in the study. Incremental load counter movement jumps test and an isometric knee extensor strength (KES) tests were performed. Paired-samples t-test revealed statistically significant differences between the two methods for maximal theoretical power (Pmax ) (p < 0,05). No differences were found for maximal theoretical force (F0 ), maximal theoretical velocity (v0) and slope of the force-velocity curve (slope F-v) (all p > 0,05). Using Pearson’s and Spearman’s correlation coefficients, we did not find statistically significant correlations between the differences of the methods in F-v-P outcomes and KES (p > 0,05). The main findings of our study were that, with the exception of Pmax , the F-v-P outcomes can be credibly calculated using the 2-point method (where low load corresponds to the body mass condition and high load corresponds to additional 80% body mass condition) and that the results are not correlated with the strength of the participants.

06.11.2024