Characteristics of isometric muscle force of back extensors with differently trained and non-trained students of the Academy of Criminalistic and Police Studies

Abstract

This work presents the results of a research whose main objective was defining the level of transfer of additional exercise on the manifestation of the characteristics of the back extensor muscle force compared to regular physical activity in Special Physical Education (SPE) classes. Fifty-two students of the Academy of Criminalistic and Police Studies (ACPS) in Belgrade participated in the research; they were divided into three differently trained groups: the control group consisted of students who exercised following the SPE curriculum (20), the second group included students who had additional martial arts training (15), and the third group consisted of students who had additional gym work out (17). The measurement of the characteristics of muscle force was performed by applying the dynamometry method, using the 'Isometric Dead lift' standardized test. The results showed that, in general, the quantitative value of the benefit of additional exercise in the gym for students tested was 29.02%, while training in martial arts amounted to 40.98%. Regardless of the type of additional training, i.e. exercise, the benefit of additional training or exercise was a 35% higher level of contractile ability of F - t dependency in the back extensor muscles. The results suggest that, for students of the ACPS, regular physical exercise from 4 to 5 times a week, focusing on different type of velocity-strength training, has, statistically, a significantly greater effect on the development of contractile capacity of muscles (F - t relationship) compared to the exercise frequency of only 2 times a week.

U radu su prezentovani rezultati istraživanja čiji je osnovni cilj bio definisanje nivoa transfera dodatnog vežbanja na ispoljavanje karakteristika mišićne sile opružača leđa u odnosu na redovnu fizičku aktivnosti realizovanu na nastavi SFO-a. U istraživanju je učestvovalo 52 studenta Kriminalističko-policijske akademije u Beogradu, koji su bili podeljeni u tri različito trenirane grupe: kontrolna grupa sastavljena od studenata koji su vežbali po programu nastave iz SFO-a (20), grupa studenata koja je dodatno trenirala neki borilački sport (15) i grupa studenata koja je dodatno vežbala u teretani (17). Merenje karakteristika mišićne sile izvršeno je metodom dinamometrije primenom standardizovanog testa 'Mrtvo vučenje'. Rezultati su dokazali da, generalno posmatrano, kvantitativna vrednost benefita dodatnog vežbanja u teretani kod testiranih studenata iznosi 29,02%, dok je za trening kod borilačkih sportova bila 40,98%. Bez obzira na vrstu dodatnog treninga, tj. vežbanja, benefit dodatnog vežbanja, odnosno treninga je bio 35% bolji nivo kontraktilnih sposobnosti zavisnosti F - t kod mišića opružača leđa. Rezultati upućuju na zaključak da kod studenata KPA redovno fizičko vežbanje od 4 do 5 puta nedeljno, sa trenažnim usmerenjem na brzinsko-snažna opterećenja, ima statistički značajno bolji efekat na razvoj kontraktilnih sposobnosti mišića (F - t zavisnost) u odnosu na učestalost od samo 2 puta nedeljno.