Utjecaj gurtni i magnezija na izvedbu i broj ponavljanja mrtvog dizanja kod vrhunskih powerliftera

master's thesis

• Title (english): Influence of chalk and lifting straps on repetition number and preformance in deadlift of top level powerlifters
• Author: Bruno Damjan
• Mentor: Saša Vuk (mentor)
• Committee member: Saša Vuk (predsjednik povjerenstva)
• Committee member: Asim Bradić (član povjerenstva)
• Committee member: Pavle Mikulić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Kinesiology; Zagreb
• Defense date and country: 2019-07-15, Croatia
• Scientific / art field, discipline and subdiscipline: SOCIAL SCIENCES; Kinesiology

Abstract

Cilj ovog rada bio je utvrditi mogu li i u kojoj mjeri ergogena pomagala omogućiti bolje rezultate pri izvedbi i broju ponavljanja u mrtvom dizanju, odnosno ima li razlike i u kojoj mjeri u tri uvjeta dizanja. Selekcionirana populacija vrhunskih powerlitera (n=8) izvodila je mrtvo dizanje u tri uvjeta: samo šipka (1), magnezij (2) te gurtne (3). Dizanja su u sva tri uvjeta izvodili s 85% od 1RM-a te su izveli maksimalan broj ponavljanja do mišićnog otkaza. Rezultati MANOVA-e i Tukey post-hoc testa pokazuju statistički značajnu razliku (p = 0,01) između uvjeta 1 i 2 u broju ponavljanja te statistički značajnu razliku (p = 0,04) između uvjeta 2 i 3 u varijabli vršne brzine, odnosno rezultati nam kazuju da se korištenjem magnezija za 102% povećava broj ponavljanja u odnosu na dizanje samo sa šipkom. Također, korištenjem magnezija za gotovo 60% se povećava vršna brzina u odnosu na korištenje gurtni kod dizanja. Zaključno, korištenje krede dalo je najbolje rezultate u broju ponavljanja i izvedbi mrtvog dizanja što može biti vrlo važno u povećanju ukupnog rada. Statistički značajna razlika korištenjem grutni nije se javila ni u jednoj varijabli, ali moramo kazati kako postoji limitirajući faktor, a to je selekcionirana i specifična populacija powerliftera. Pretpostavka je da bi kod ne selekcionirane populacije gurtne statistički značajno utjecale na većinu varijabli.

Abstract (english)

The goal of this paper was to prove whether ergogenic aids could give better results in the performance and the number of repetitions in deadlift, i.e. whether there are differences and to what extent in the three lifting conditions. Selected population of top level powerliters (n=8) performed a deadlift in three conditions: only the bar (1), the chalk (2) and the lifting straps (3). Lifts were made in all three conditions with 85% of 1 RM and they performed the maximum number of repetitions until the muscle failure. The results of MANOVA method and Tukey post-hoc test show a statistically significant difference (p = 0,01) between the conditions 1 and 2 in the number of repetitions and a statistically significant difference (p = 0,04) between conditions 2 and 3 in the peak speed variables, i.e. the results indicate that the use of chalk increases the number of repetitions compared to the lift only with the bar by 102%. Also, the use of chalk increases the peak speed compared to the use of lifting straps by 60%. In conclusion, chalk has given the best results in the number of repetitions and the performance of deadlift which can be very important in increasing the overall work. A statistically significant difference in the use of lifting straps has not occurred in any variable, but there is a limiting factor which is the selected and specific powerlifter population. The assumption is that in nonselected populations, the lifting straps would have a statistically significant influence on most variables.

• Keywords: mrtvo dizanje; ergogena pomagala; powerlifteri; gurtne; magnezij
• Keywords (english): deadlift; ergogenic aids; powerlifters; lifting straps; chalk
• Language: croatian
• URN:NBN: urn:nbn:hr:117:956533
• Study programme: Title: Integrated undergraduate and graduate university study of kinesiology; 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: 2019-07-19 13:21:18