Razlike između nekih kinematičkih pokazatelja ruske i američke tehnike dvoručnog zamaha girjom

master's thesis

• Title (english): Differences Between Some Kinematic Parameters of Russian and American Style Kettlebell Swing
• Author: Hrvoje Pajtak
• Mentor: Saša Vuk (mentor)
• Committee member: Saša Vuk (predsjednik povjerenstva)
• Committee member: Josipa Nakić (član povjerenstva)
• Committee member: Daniel Bok (član povjerenstva)
• Granter: University of Zagreb; Faculty of Kinesiology; Zagreb
• Defense date and country: 2020-07-02, Croatia
• Scientific / art field, discipline and subdiscipline: SOCIAL SCIENCES; Kinesiology

Abstract

Zamah girjom čini tehničku osnovu većine drugih vježbi s girjama, no vrlo često se samostalno koristi u programima za razvoj mišične jakosti, snage, izdržljivosti kao i aerobne izdržljivosti. Dvije karakteristične tehnike izvedbe zamaha girjom su ruska i američka. Cilj ovog rada bio je utvrditi koja će od ovih tehnika ponuditi veći mehanički izlaz u vidu snage, brzine te količine gibanja uzimajući u obzir utrošak energije i rizik od pojave ozljeda prilikom izvedbe te samim time koja tehnika predstavlja sigurniju varijantu trenažnog operatora za razvoj određenih dimenzija snage te mišićne izdržljivosti. Muška, tjelesno aktivna populacija (n = 15) izvela je dvoručni zamah girjom u dva uvjeta: ruskom tehnikom (1) i američkom tehnikom (2). Zamah su u oba uvjeta izvodili s girjom mase 24 kg ( ~ 25% tjelesne mase) te su izveli osam ponavljanja kod kojih se promatrala koncentrična i ekscentrična faza. Rezultati t-testa za zavisne uzorke pokazuju statistički značajnu razliku između uvjeta 1 i 2 u trajanju koncentričnog dijela ciklusa (p < 0,01), amplitudi (p < 0,01), te količini gibanja u ekscentričnom dijelu pokreta (p = 0,001). Tehnike se nisu statistički razlikovale u snazi (p = 0,681), odnosno rezultati nam kazuju kako američka tehnika ima veće trajanje, amplitudu i količinu gibanja, no snaga generirana tokom obje tehnike je približno slična. Zaključno, obje tehnike imaju svoje mjesto u treningu kako sportaša tako i rekreativca za razvoj jakosti, snage i mišićne izdržljivosti, no ruska tehnika predstavlja sigurniju alternativu zbog gotovo jednakih benefita koji se postižu na sigurniji način.

Abstract (english)

Kettlebell swing makes tehnical base in majority of kettlebell exercises, but it is often used on its own as a tool in various training programs that develop strength, power, muscular endurance as well as aerobic capacity. Two main styles of this exercise are russian and american one. Main goal of this paper was to determine which one of these styles offers greater mechanical output in form of power, velocity and momentum when energy expenditure and injury risk are taken into consideration and in addion which style represents the safer variant of training operator for developing certain strength and power qualities along with muscular endurance. Selected population of physicaly active males (n = 15) performed kettlebell swing under two conditions: using russian (1) and american (2) styles. They performed 8 swings using a 24 kg kettlebell ( ~25% bodyweight) during which both the concentric and eccentric phases of the lift were analyzed. Results of t- test for dependent samples show a statistically significant difference between conditions 1 and 2 in duration of concentric portion of the lift (p < 0,01), amplitude (p < 0,01), as well as momentum during eccentric portion of the lift (p = 0,001). There was no statistically significant difference in power variable (p = 0,681), i.e. the results indicate that american style has longer cycle duration, amplitude and momentum but power genereted during both styles remains simmilar. In conclusion, both styles have their rightful place in training protocols for developing strength, power and muscular endurance for athletes as well as amateurs but russian style presents safer alternative because of practically equal benefits which are attained in safer manner

• Keywords: swing girjom; rusko zvono; snaga; mišićna izdržljivost
• Keywords (english): kettlebell swing; power; muscular endurance
• Language: croatian
• URN:NBN: urn:nbn:hr:117:136986
• 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; Course: Kinesiology in Education and Fitness; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar / magistra kineziologije (magistar / magistra kineziologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-12-10 11:25:56