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

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

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.

• Language: English
• Keywords: exercise, resistance, performance, biomechanics, two-point model, force, velocity, force-velocity relationship
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FŠ - Faculty of Sport
• Publication status: Published
• Publication version: Version of Record
• Year: 2021
• Number of pages: 11 str.
• Numbering: Vol. 18, iss. 3, art. 1032
• PID: 20.500.12556/RUL-134834
• UDC: 796.01
• ISSN on article: 1660-4601
• DOI: 10.3390/ijerph18031032
• COBISS.SI-ID: 48545795
• Publication date in RUL: 03.02.2022

Record is a part of a journal

• Title: International journal of environmental research and public health
• Shortened title: Int. j. environ. res. public health
• Publisher: MDPI
• ISSN: 1660-4601
• COBISS.SI-ID: 1818965

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 01.02.2021

Secondary language

• Language: Slovenian
• Keywords: šport, vadba, biomehanika, vzdržljivost, moč, hitrost, odnos moč–hitrost