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Article type: Research Article
Authors: Toskić, Lazara; b; * | Dopsaj, Milivoja; c | Stanković, Veroljubb | Marković, Milana
Affiliations: [a] Faculty of Sport and Physical Education, University of Belgrade, Belgrade, Serbia | [b] Faculty of Sport and Physical Education, University of Priština, Leposavić, Serbia | [c] Institute of Sport, Tourism and Service, South Ural State University, Chelyabinsk, Russia
Correspondence: [*] Corresponding author: Lazar Toskić, Faculty of Sport and Physical Education, University of Priština, Dositeja Obradovića bb, 38218 Leposavić, Serbia. Tel.: +38162658056; E-mail: lazar.toskic@pr.ac.rs.
Abstract: BACKGROUND: Information regarding the relationship between methods for assessment of voluntary and involuntary muscle contractile properties is of importance in sport science and medicine. OBJECTIVE: To appraise the concurrent and predictive validity of isokinetic dynamometry and tensiomyography (TMG) in differently trained men and women. METHODS: Fifty men and 45 women were divided into three groups: physically inactive, physically active and athletes. Isokinetic testing was performed on knee muscles in concentric mode at 60 and 180∘s while tensiomyographic measurements were obtained from the rectus and the biceps femoris muscles. RESULTS: A small, statistically significant correlation was detected between the peak moment and tensiomyography parameters relating to contraction time and maximal displacement (Adj. R=2 0.086, p= 0.028). CONCLUSION: In general, isokinetic dynamometry and tensiomyography are not related and represent different technologies that measure different contractile properties of muscles. A hierarchical structure of predictive validity at the level of individual variables was detected as a function of gender and training level.
Keywords: Voluntary contraction, involuntary contraction, peak moment, contraction time, maximal displacement
DOI: 10.3233/IES-185152
Journal: Isokinetics and Exercise Science, vol. 27, no. 1, pp. 31-39, 2019
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