Skok u dalj-biomehanika i ergonomija skoka

undergraduate thesis

• Title (english): Long jump-biomehanics and ergonomics of the jump
• Author: Lucija Rasinec
• Mentor: Aleksandar Sušić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

Cilj ovog završnog rada je biomehanička analiza skoka u dalj s naglaskom na prve dvije faze, fazu zaleta i fazu odraza. Budući da je skok u dalj atletska disciplina koja osim razumijevanja pravila i tehnike, zahtjeva i umijeće vještine. Potrebno je puno vježbe kako bi pojedinac mogao doći do svojeg optimalnog skoka. S ciljem postizanja optimalnog skoka u ovom radu prikazat ćemo parametre koji odgovaraju optimalnom skoku tj. rezultatu kojem teže svi skakači. Također, provedena analiza u svrhu poboljšanja tehnike skoka može pridonijeti vještini skakanja i razvoju brzine prilikom zaleta. Upravo su brzina i kut odraza ključni faktori koju utječu na sami skok. Budući da je kretanje tijela u fazi zaleta slično gibanju projektila, preko poznatih jednadžbi možemo doći do zaključka i optimalnih parametara. Ključno je razumjeti da velik utjecaj na kut odraza ima i odskočna sila koja mijenja svoj intenzitet promjenom kuta. Zbog toga, postoje dva krajnja slučaja između kojih mi tražimo onaj najpovoljniji, optimalni skok.

Abstract (english)

The goal of this final paper is a biomechanical analysis of the long jump with an emphasis on the first two phases, the take-off phase and the reflection phase. Because the long jump is an athletic discipline that, in addition to understanding the rules and technique, also requires skill. It takes a lot of practice so that an individual can reach his optimal jump. With the aim of achieving an optimal jump, in this paper we will present the parameters that correspond to the optimal jump, i.e. the result that all jumpers strive for. Also, the analysis carried out for the purpose of improving the jumping technique can contribute to the jumping skill and the development of speed during take-off. It is the speed and the angle of reflection that are the key factors affecting the jump itself. Since the movement of the body in the take-off phase is similar to the movement of a projectile, we can reach a conclusion and optimal parameters through known equations. It is crucial to understand that the bounce force, which changes its intensity by changing the angle, also has a great influence on the angle of reflection. Because of this, there are two extreme cases between which we seek the most favorable, optimal jump.

• Keywords: skok u dalj; biomehanika; brzina; kut odraza; odrazna sila
• Keywords (english): long jump; biomechanics; speed; reflection angle; reflection force
• Language: croatian
• URN:NBN: urn:nbn:hr:235:317157
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-09-21 09:12:11