Title Razlike u brzini udaraca karataša seniora po težinskim kategorijama Title (english) Impact Velocity Differences Between Weight Classes in Senior Karate Author Eugen Kanjir Mentor Saša Vuk (mentor)Committee member Saša Vuk (predsjednik povjerenstva)Committee member Daniel Bok (član povjerenstva)Committee member Hrvoje Sertić (član povjerenstva)Granter University of Zagreb Defense date and country 2020-09-22, Croatia Scientific / art field, SOCIAL SCIENCES Abstract Primarni cilj ovog istraživanja bio je izmjeriti brzinu izvođenja nožnih i ručnih udaraca kod karatista seniora različitih težinskih kategorija,te zatim usporediti razlike u brzini udaraca između težinskih kategorija kako bi utvrdili u kojoj su kategoriji sportaši najbrži, a u kojoj najsporiji. Istraživanje je provedeno na uzorku od 26 ispitanika iz karate klubova iz cijele Hrvatske koji nastupaju u tri različite težinske kategorije: najlakše (-67 kg; n = 10; dob: 21,6 ± 1,84 god; tjelesna masa: 66,6 ± 2,93 kg; visina: 175,2 ± 3,68 cm; iskustvo u karateu: 13,90 ± 2,08 god); srednje (-75 kg; n = 10; dob: 23,75 ± 3,62 god; tjelesna masa: 76,44 ± 2,95 kg; visina: 179 ± 6,65 cm; iskustvo u karateu: 15,88 ± 3,48 god) i najteže (+75 kg; n = 8; dob: 22,88 ± 3,09 god; tjelesna masa: 89,86 ± 4,04 kg; visina: 190,38 ± 4,04cm; iskustvo u karateu: 15 ± 2,51 god). Uvjet uključenosti u istraživanje je bio da su karatisti aktivni borci te da su sudjelovali na prvenstvima Hrvatske u posljednje dvije godine. Osim vršne i prosječne brzine udaraca, mjerile su se osnovne antropološke karakteristike kao što su visina tijela, masa, te dužina noge i ruke kojom su se izvodili udarci. Snimanje svih udaraca provodilo se bočno u odnosu na ispitanika kako bi se dominantno snimio udarac koji se izvodi u sagitalnoj ravnini. Mjerila se brzina izvođenja jednog udarca rukom i tri udarca nogom. Pretpostavka je bila da će karatisti najlakše kategorije biti statistički značajno brži od karatista ostalih kategorija u izvedbi svih udaraca. Rezultati su pokazali da su kod izvedbe tehnike gyaku-zuki najbolje vrijednosti vršne brzine postigli karatisti iz najlakše kategorije. Karatisti iz srednje kategorije ostvarili su najbolje vrijednosti vršne brzine kod izvedbe nožnih udaraca ushiro mawashi-geri i mawashi-geri, dok su sportaši iz teške kategorije ostvarili najbolje rezultate u nožnom udarcu mae-geri. Najbolje vrijednosti prosječne brzine kod izvedbe udarca rukom postigli su najlakši sportaši, dok su kod svih ostalih udaraca najbolje vrijednosti ostvarili sportaši iz srednje kategorije.
Abstract (english) The primary goal of this research was to examine and measure the velocity of punches and kicks performed by senior karate practitioner throughout various weight classes. Furthermore, the disparities in velocity of punches were then compared within different weight classes to determine which weight class participants perform punches and kicks the fastest, i.e., the slowest. This research was conducted on a sample of twenty-six data subjects from Croatian karate clubs who perform within three distinct weight classes: lightweight (-67 kg; n=10; age: 21,6 ± 1,84 years; body weight: 66,6 ± 2,93 kg; height: 175,2± 3,68 cm; karate experience: 13,90 ± 2,08 years); middleweight (-75 kg; n=10; age: 23,75 ±3,62 years; body weight: 76,44 ± 2,95 kg; height: 179 ± 6,65 cm; karate experience: 15,88 ±3,48 years) and heavyweight (+75kg; n=8; age: 22,88 ± 3,09 years; body weight: 89,86 ± 4,04kg; height: 190,38 ± 4,04 cm; karate experience: 15 ± 2,51 years). For karate practitioners to be included into research, two requirements had to be fulfilled: each one of the practitioners still had to be an active karate fighter and have participated in the Croatian championships throughout the last two years. In addition to peak and average strike velocities, elementary anthropological characteristics such as body height, body mass and leg and arm lenght with which the strikes were performed were also measured. All strikes performed were recorded laterally in relation to the examinee in order to chiefly record the strike performed in the sagittal plane. Components which were recorded were the velocities of one (hand) punch and three (leg) kicks. Moreover, main assumption was that participants of the lightweight class would be statistically and notably faster than participants of other weight classes when performing the latter. The results have shown that while performing gyaku-zuki technique, the highest peak velocity values were scored by participants of the lightweight class. Middleweight practitioners have achieved the highest peak velocity values while performing ushiro mawashi-geri and mawashi-geri leg kicks and heavyweight practitioners achieved the highest results while performing mae-geri leg kicks. To summarize, the highest average velocity values while performing punches were scored by the lightweight practitioners, but in relation to every other strike, the results have shown that middleweight practitioners scored the highest values.
Keywords
karate
težinske kategorije
brzina udaraca
kinematička analiza
Keywords (english)
karate
weight categories
impact velocity
kinematic analysis
Language croatian URN:NBN urn:nbn:hr:117:980748 Study programme Title: Kinesiology; specializations in: Kinesiology in Education and Track-and-Field, Kinesiology in Education and Fitness, Kinesiology in Education and Wrestling, Kinesiology in Education and Sailing, Kinesiology in Education and Windsurfing, Kinesiology in Education and Judo, Kinesiology in Education and Kayaking, Kinesiology in Education and Kinesiological Recreation, Kinesiology in Education and Kinesitherapy, Kinesiology in Education and Physical Conditioning of Athletes, Kinesiology in Education and Basketball, Kinesiology in Education and Football, Kinesiology in Education and Volleyball, Kinesiology in Education and Basic Kinesiological Transformations, Kinesiology in Education and Dancing, Kinesiology in Education and Swimming, Kinesiology in Education and Rhythmic Gymnastics, Kinesiology in Education and Handball, Kinesiology in Education and Skiing, Kinesiology in Education and Artistic Gymnastics, Kinesiology in Education and Management of Sport, Kinesiology in Education and Tennis, Kinesiology in Education and Rowing Type of resource Text File origin Born digital Access conditions Access restricted to students and staff of home institution Terms of use Created on 2020-12-08 11:27:15
