magistrsko delo
Katja Škoda (Author), Vojko Strojnik (Reviewer), Katja Tomažin (Mentor), Petra Prevc (Co-mentor)

Abstract

Namen magistrskega dela je bil preveriti, če obstaja povezanost med izbirnim reakcijskim časom in oceno intenzivnosti ravnotežne naloge. V raziskavi je prostovoljno sodelovalo 25 naključno izbranih, zdravih in nepoškodovanih odraslih oseb, ki niso bile v rednem procesu treninga. Meritve so potekale v Kineziološkem laboratoriju na Fakulteti za šport. Preizkušanci so tekom meritev izvedli dve nalogi enostavnega reakcijskega časa (v sedu in stoji), vse naloge so ponovili 6 krat. Izvedli so tudi 6 nalog z izbirnim reakcijskim časom, tudi tu so izvedli šest ponovitev sonožne stoje na trdi in mehki podlagi, enonožne stoje na trdi in mehki podlagi ter tandemske stoje na trdi in mehki podlagi. Naloga preizkušancev je bila izvedba dvojne naloge, in sicer ob hkratnem vzdrževanju izbranega ravnotežnega položaja čim hitreje pritisniti stikalo po pojavu svetlobnega signala. Med izvajanjem ravnotežnih nalog smo preko pritiskovne plošče spremljali hitrost gibanja oprijemališča sile reakcije podlage in reakcijski čas na svetlobni signal. Po opravljeni vsaki nalogi so nam podali subjektivno oceno od 1-5. Rezultati raziskave so pokazali, da smo z zmanjševanjem velikosti in togosti podporne površine pri izbranih ravnotežnih nalogah povečali hitrost nihanja PSRP in subjektivna ocena intenzivnosti ravnotežnih nalog, ko smo zmanjšali velikost in togost podporne površine. Kljub navedenem pa ni prišlo do povečanja IRČ na svetlobni dražljaj. Prav tako nismo dokazali statistično značilno povezanost med hitrostjo nihanja PSRP, oceno intenzivnosti ravnotežnih nalog ter trajanjem IRČ. Do tega je prišlo, ker so bile naloge za zdrave odrasle verjetno premalo zahtevne in ker so udeleženci najverjetneje različno razporejali pozornost med nalogama, kar je vplivalo na visoko variabilnost rezultatov in pomanjkanje statistično značilnih povezav ter razlik

Keywords

šport;ravnotežje;reakcijski čas;vadba ravnotežja;upravljanje drže;upravljanje ravnotežja;intenzivnost ravnotežne naloge;izbirni reakcijski čas;dvojna naloga;subjektivna ocena;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FŠ - Faculty of Sport
Publisher: [K. Škoda]
UDC: 796.01
COBISS: 249689091 Link will open in a new window
Views: 127
Downloads: 24
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Other data

Secondary language: English
Secondary title: Relationship between choice reaction time and subjective perception of the intensity of balance exercise
Secondary abstract: The purpose of this master thesis was to determine whether there is a relationship between choice reaction time and the subjective perception of balance task intensity. The study involved 25 randomly selected, healthy, uninjured adult volunteers, they did not train on a regular basis. During testing, participants performed two simple reaction time tasks (in seated and standing positions), each repeated six times. They also performed six choice reaction time tasks: six repetitions of double-leg stance on soft and hard surfaces, single-leg stance on soft and hard surfaces, and tandem stance on soft and surfaces. The task was dual in nature – participants had to maintain the given balance position while reacting as quickly as possible to a light stimulus by pressing a button. During the balance tasks, a pressure platform was used to measure the velocity of the center of pressure movement and the reaction time to the light signal. After each task, participants provided a subjective rating of difficulty on a scale from 1 to 5. The results of the study showed that reducing the size and stiffness of the support surface in selected balance tasks led to an increase center of pressure (COP) sway velocity and higher subjective ratings of balance task intensity. Despite these changes, there was no increase in the reaction time to the visual stimulus. It has also been proven that there is no statistically significant relationship between the speed of the COP sway fluctuation, the assessment of the intensity of the balance tasks and the duration of the choice reaction time. One possible explanation is that the tasks were likely not sufficiently challenging for healthy adults. Additionally, participants probably distributed their attention between the tasks in different ways, which contributed to high variability in the results and the lack of statistically significant differences and correlations.
Secondary keywords: sport;balance;intensity of exercise;choice reaction time;dual task;subjective rating;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za šport
Pages: 1 spletni vir (1 datoteka PDF 37 str.))
ID: 26719757