Are the parameters of novel two-point force-velocity model generalizable in leg muscles?

Saša Đurić (Author), Vladimir Grbić (Author), Milena Živković (Author), Nikola Majstorović (Author), Vedrana Sember (Author)

Abstract

The two-point force-velocity model allows the assessment of the muscle mechanical capacities in fast, almost fatigue-free conditions. The aim of this study was to investigate the concurrent validity of the two-point parameters with directly measured force and power and to examine the generalization of the two-point parameters across the different functional movement tests of leg muscles. Twelve physically active participants were tested performing three functional lower limb maximal tests under two different magnitudes of loads: countermovement jumps, maximal cycling sprint, and maximal force under isokinetic conditions of the knee extensors. The results showed that all values from the two-point model were higher than the values from the standard tests (p < 0.05). We also found strong correlations between the same variables from different tests (r ≥ 0.84; p < 0.01), except for force in maximal cycling sprint, where it was low and negligible (r = −0.24). The results regarding our second aim showed that the correlation coefficients between the same two-point parameters of different lower limb tests ranged from moderate to strong (r −0.47 to 0.72). In particular, the relationships were stronger between power variables than between force variables and somewhat stronger between standard tests and two-point parameters. We can conclude that mechanical capacities of the leg muscles can be partially generalized between different functional tests.

Keywords

exercise;resistance;performance;biomechanics;two-point model;force;velocity;relationship;

Data

Language:	English
Year of publishing:	2021
Typology:	1.01 - Original Scientific Article
Organization:	UL FŠ - Faculty of Sport
UDC:	796.01
COBISS:	48545795
ISSN:	1660-4601
Views:	163
Downloads:	59
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	šport;vadba;biomehanika;vzdržljivost;moč;hitrost;odnos;
Type (COBISS):	Article
Pages:	str. 1-11
Volume:	ǂVol. ǂ18
Issue:	ǂiss. ǂ3, ǂart. ǂ1032
Chronology:	2021
DOI:	10.3390/ijerph18031032
ID:	14444861