Lumbar and Abdominal Muscles Isometric Potential in Volleyball Cadets

Abstract

Given that a volleyball game requires a certain level of individual anthropological characteristics of young volleyball players to successfully act on situational conditions, and that interdisciplinary approach in the science study is the principal methodological orientation, subject of study in the field of sports is the anthropological status. The aim of this study was to analyze the possible differences in spinal lumbar and abdominal muscles isometric potential of prospective male and female. Sample included 42 subjects (15 male and 27 female subjects), male and female volleyball players, the cadet selection of Serbia, aged 14±0.5 years. Isometric muscle potential assessment was conducted using four standardized motor movement tasks, covering the following areas: static contraction of the flexors of the torso, static contraction of the extensors of the torso, static contraction of the left flexor of the torso, and static contraction of the right flexor of the torso. In addition to the descriptive statistics used, as basis statistics, the t-test for independent samples was used, to compare the mean values of parameters measured in two different groups of athletes-volleyball players (girls-boys). Descriptive indicators of the sample suggest greater values of deep spinal muscles isometric potential with boys in all study variables. Study results gained by the t-test of independent samples indicate that statistically significant difference exists between their mean results in variables of trunk flexor static contractions and trunk extensor static contractions, at the level 0.001. With other two variables, the values indicate that difference between genders is not significant but accidental. The results of this study regarding static contraction of the right and left lateral flexors of the torso show the lack of statistical significance between male and female cadet volleyball players.

Current trends of the serve skill in relation to the in-game roles of the elite volleyball players: Comparison between genders

“…On the other hand, women mainly used the FJS, less the PJS and seldom the FS. The above-mentioned differences between genders may be due to the fact that in equally trained men and women, men are stronger, heavier and taller and have better speed than female players (Bogdanovic, Vidakovic, Grbic, & Milic, 2014). Therefore, the use of techniques and their efficacy has been found to be different between genders (Palao, Manzanares, & Ortega, 2009) with men being able to apply quicker attack tempos (Afonso, Mesquita, & Palao, 2005;Castro & Mesquita, 2008;Palao, Santos, & Urena, 2004 a,b), stronger attacks (Costa, Caetano, Ferreira, Afonso, & Costa, 2011) and to use PJS in a more natural way than women (Costa et al 2012).…”

Differences in Anthropometric Characteristics between Athletes of Different Orientation, Handball and Volleyball

“…Na osnovu dobijenih deskriptivnih parametara ovog istraživanja prosječna tjelesna visina odbojkaša je 178.58 cm, a masa tijela odbojkaša je 66.28 kg, pa vidimo da oni imaju nešto niže vrijednosti u odnosu na reprezentativce Srbije istog uzrasta (Bogdanovic et al, 2014) gdje je prosječna tjelesna visina bila 181.87 cm a masa tijela je iznosila 70.53 kg. Možda je to osnovni razlog zašto crnogorski odbojkaši nijesu uspješni na međunarodnim takmičenjima kao srbijanski odbojkaši sa kojima je vršeno poređenje.…”

Comparative Analysis of Anthropometric Characteristics between Athlets of Different Orientation

“…U svojoj specifi kaciji uspjeha na prvo a samim tim i najvažnije mjesto autori stavljaju upravo antropometrijske karakteristike košarkaša (Karalejic i Jakovljevic, 2001) i to tjelesnu visinu, a zatim masu tijela koja je takođe od velike važnosti u košarci. Na osnovu dobijenih deskriptivnih parametara ovog istraživanja prosječna tjelesna visina odbojkaša je 178.58 cm, a masa tijela odbojkaša je 66.28 kg, pa vidimo da oni imaju nešto niže vrijednosti u odnosu na reprezentativce Srbije istog uzrasta (Bogdanovic et al, 2014) gdje je prosječna tjelesna visina bila 181.87 cm a masa tijela je iznosila 70.53 kg. Možda je to osnovni razlog zašto crnogorski odbojkaši nijesu uspješni na međunarodnim takmičenjima kao srbijanski odbojkaši sa kojima je vršeno poređenje.…”