Povezanost moči trupa in faznega kota pri judoistih : magistrsko delo

Fatur, Matic (avtor), Šimenko, Jožef (mentor)

Moč trupa predstavlja pomemben dejavnik uspešnosti in stabilnosti v judu, hkrati pa je fazni kot v zadnjih letih prepoznan kot obetaven kazalec telesne sestave in celične integritete v športu. Namen raziskave je bil analizirati status maksimalne izometrične moči trupa pri kategoriziranih judoistih in judoistkah ter preveriti povezanost teh meritev s faznim kotom. V raziskavo je bilo vključenih 24 vrhunskih judoistov in judoistk, testiranih v pripravljalnem obdobju. Maksimalna mišična moč trupa je bila izmerjena v izometričnih pogojih, telesna sestava in fazni kot pa z večfrekvenčno bioimpedančno analizo. Rezultati so pokazali, da je bil obravnavani vzorec ustrezno telesno pripravljen, z deležem skeletne mišične mase, primerljivim ali nekoliko višjim v primerjavi z referenčnimi študijami. Med spoloma so bile ugotovljene statistično značilne razlike v relativni izometrični moči upogibalk trupa, pri čemer so moški dosegli višje vrednosti kot ženske (p = 0,007; d = 1,23), medtem ko statistično značilnih bilateralnih asimetrij v moči trupa ni bilo zaznati. Fazni kot je bil statistično značilno in pozitivno povezan z absolutno izometrično močjo upogiba trupa (r = 0,50; p = 0,013), iztega trupa (r = 0,58; p = 0,003) ter stranskega upogiba trupa v levo (r = 0,58; p = 0,003) in stranskega upogiba trupa v desno (r = 0,56; p = 0,006) ter s količino skeletne mišične mase (r = 0,69; p < 0,001). Povprečne vrednosti faznega kota so bile nižje od vrednosti, poročanih v primerljivih študijah, kar je verjetno povezano z večjo akutno trenažno obremenitvijo v pripravljalnem obdobju. Ugotovitve kažejo, da kombinacija meritev faznega kota in izometrične moči trupa predstavlja uporaben, neinvaziven in praktično izvedljiv pristop za spremljanje telesne pripravljenosti vrhunskih judoistov ter ponuja izhodišče za nadaljnje raziskave v borilnih športih.

• Jezik: Slovenski jezik
• Ključne besede: Tekmovalni judo, moč trupa, asimetrije trupa, fazni kot
• Vrsta gradiva: Magistrsko delo/naloga
• Tipologija: 2.09 - Magistrsko delo
• Organizacija: FŠ - Fakulteta za šport
• Leto izida: 2026
• PID: 20.500.12556/RUL-184055
• COBISS.SI-ID: 283093251
• Datum objave v RUL: 25.06.2026

Sekundarni jezik

• Jezik: Angleški jezik
• Naslov: Association between trunk strength and phase angle in judokas

Izvleček

Trunk strength represents an important determinant of performance and stability in judo, while phase angle has recently been recognized as a promising indicator of body composition and cellular integrity in sport. The aim of this study was to analyze the status of maximal isometric trunk strength in categorized male and female judokas and to examine its association with phase angle. The study included 24 elite judokas tested during the preparatory training period. Isometric trunk strength was assessed using the BackCheck® device, while body composition and phase angle were measured by multi-frequency bioelectrical impedance analysis. The results indicated that the examined sample was adequately physically prepared, with skeletal muscle mass values comparable to or slightly higher than those reported in reference studies. Statistically significant sex differences were found in relative isometric trunk flexor strength, with men achieving higher values than women (p = 0.007; d = 1.23), whereas no statistically significant bilateral asymmetries in trunk strength were detected. Phase angle was significantly and positively associated with absolute isometric trunk flexion (r = 0.50; p = 0.013), extension (r = 0.58; p = 0.003), left lateral flexion (r = 0.58; p = 0.003), and right lateral flexion (r = 0.56; p = 0.006), as well as with skeletal muscle mass (r = 0.69; p < 0.001). Mean phase angle values were lower than those reported in comparable studies, which was likely related to increased acute training loads during the preparatory period. The findings suggest that the combined assessment of phase angle and isometric trunk strength represents a useful and non-invasive approach for monitoring physical preparedness in elite judokas and provides a basis for further research in combat sports.

• Ključne besede: Competitive judo, trunk strength, trunk asymmetries, phase angle