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

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

Povzetek

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.

Ključne besede

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

Podatki

Jezik:	Angleški jezik
Leto izida:	2021
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FŠ - Fakulteta za šport
UDK:	796.01
COBISS:	48545795
ISSN:	1660-4601
Št. ogledov:	163
Št. prenosov:	59
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	šport;vadba;biomehanika;vzdržljivost;moč;hitrost;odnos;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-11
Letnik:	ǂVol. ǂ18
Zvezek:	ǂiss. ǂ3, ǂart. ǂ1032
Čas izdaje:	2021
DOI:	10.3390/ijerph18031032
ID:	14444861