Relationship between Muscle Torque and Performance in Special and Specific Exercises in Young Weightlifters

Szyszka Paulina (), Jaszczuk Janusz, Sacharuk Jarosław, Parnicki Florian and Czaplicki Adam
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Szyszka Paulina: Józef Piłsudski University of Physical Education in Warsaw, Faculty of Physical Education and Sport in Biała Podlaska, Department of Sports Theory and Practice, Department of Sports Theory and Practice, 2 Akademicka Street, 21-500 Biała Podlaska, Akademicka Street, 21-500 Biała Podlaska, Poland
Jaszczuk Janusz: Józef Piłsudski University of Physical Education in Warsaw, Department of Biomechanics and Computer Science, Faculty of Tourism and Health in Biała Podlaska, Akademicka Street, 21-500 Biała Podlaska, Poland
Sacharuk Jarosław: Józef Piłsudski University of Physical Education in Warsaw, Faculty of Physical Education and Sport in Biała Podlaska, Department of Sports Theory and Practice, Akademicka Street, 21-500 Biała Podlaska, Poland
Parnicki Florian: Józef Piłsudski University of Physical Education in Warsaw, Faculty of Tourism and Health in Biała Podlaska, Department of Recreation, Akademicka Street, 21-500 Biała Podlaska, Poland
Czaplicki Adam: Józef Piłsudski University of Physical Education in Warsaw, Faculty of Physical Education and Sport in Biała Podlaska, Department of Biomechanics and Computer Science, Faculty of Tourism and Health in Biała Podlaska, Poland

Polish Journal of Sport and Tourism, 2016, vol. 23, issue 3, 127-132

Abstract: Introduction. The aim of the current study was to examine the relationship between knee and elbow isometric muscle torque values and the results obtained in special and specific exercises in young weightlifters. Material and methods. The study involved eight young weightlifters (age: 19.9 ± 4.3 years; height: 176.8 ± 10.6 cm; weight: 69.0 ± 19.7 kg - pretest, 70.9 ± 21.6 - posttest). Their performance put them in the second and third top classes of weightlifters their age according to the Polish norms for weightlifting (the so-called ‘national class’ and ‘first class’ in the Polish system, which are lower than the ‘international class’). The differences between the values obtained in the first measurement of torque performed at the beginning of the preparation period and those obtained at the beginning of the immediate pre-competition period were compared with the differences in the maximal load lifted in special and specific exercises. Results. The training that the weightlifters underwent during the preparation period caused a significant increase in the relative torque values of the knee extensors (0.56 Nm/kg on average, p ≤ 0.047) and those of the elbow flexors (0.35 Nm/kg, p ≤ 0.0002). Significant differences (p ≤ 0.05) were observed between the results obtained in all of the special and specific exercises examined. A statistically significant relationship was also found between the changes in relative torque values and the results achieved in special and specific exercises. Conclusions. The regression equations derived in the study can help predict sports performance outcomes based on the results of laboratory tests.

Keywords: weightlifting; muscle torque; special exercises (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:spotou:v:23:y:2016:i:3:p:127-132:n:2

DOI: 10.1515/pjst-2016-0016

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