magistrsko delo
Darja Pestotnik (Author), Alan Kacin (Reviewer), Nejka Potočnik (Mentor)

Abstract

Uvod: Priljubljenost vadbe z omejenim pretokom krvi je zadnja leta vedno večja, njen vpliv v aerobnih pogojih na dihalne parametre pri zdravih mladih osebah pa še dokaj neraziskan. V dosedanjih raziskavah je bilo ugotovljeno, da aerobna vadba z omejenim pretokom krvi (AVOPK) v primerjavi s kontrolno vadbo doseže določeno porabo kisika (V˙O2) in druge metabolne parametre že pri nižji intenziteti in zato predstavlja potencial vadbe za osebe, ki visoko intenzivne vadbe zaradi različnih vzrokov ne morejo izvajati. Namen: Ovrednotiti spremembe dihalnih in metabolnih parametrov med kratkotrajno stacionarno vadbo z omejenim pretokom krvi in v okrevanju po njej. Metode dela: 21 različno športno aktivnih moških, starih med 18 in 35 let, je opravilo 3 testiranja na cikloergometru. Prvič je bilo opravljeno obremenitveno testiranje za določitev maksimalne porabe kisika (V˙O2maks) in frekvence srčnega utripa (fSUmaks). Drugi in tretji obisk so izvajali dva testna pogoja, po strukturi enaka, razlikovala sta se v samo v načinu: aerobna vadba z omejenim pretokom krvi ali kontrolna vadba. Protokol je bil sestavljen iz mirovanja (5 min), faze napora pri obremenitvah 40 in 60 % V˙O2maks (10 min) in faze okrevanja (15 min). Rezultati: Največje razlike med aerobno vadbo z omejenim pretokom krvi in kontrolno vadbo so bile med fazo napora pri V˙O2 (p?0,001), V˙CO2 (p<0,001), tpCO2 (p<0,05), V˙E (p<0,001), V˙E/V˙O2 (p<0,001), V˙E/V˙CO2 (p<0,05), RER (p<0,05) in pri občutenju napora (p<0,001). V fazi okrevanja so razlike do prvih petih minut še narasle, nato pa dokaj hitro padle. V primerjavi z mirovnimi vrednostmi je bila V˙O2 pri aerobni vadbi z omejenim pretokom krvi v okrevanju še dalj časa povišana. Razprava in zaključek: Dokazali smo, da je višjo V˙O2 pri AVOPK možno doseči že pri nižji intenziteti kot pri vadbi brez omejenega pretoka krvi v aktivnih mišicah. Prej pride tudi do vključitve anaerobnega metabolizma, zaradi česar poraba kisika po naporu ostaja povišana dlje časa. AVOPK je lahko zelo uporaben način vadbe za doseganje višjih vrednosti V˙O2 in posledično V˙O2maks za osebe, ki visokih intenzitet zaradi različnih razlogov ne morejo premagovati. Poudarek pri načrtovanju AVOPK je potrebno dati tudi manšetnemu tlaku, ki mora biti za vsakega preiskovanca izračunan individualno.

Keywords

magistrska dela;fizioterapija;aerobna vadba;cikloergometrija;dihalni parametri;vadba z omejenim pretokom krvi;mladi zdravi moški;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL ZF - University College of Health Studies
Publisher: [D. Pestotnik]
UDC: 615.8
COBISS: 226647811 Link will open in a new window
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Other data

Secondary language: English
Secondary title: Effects of aerobic blood flow restricted exercise on respiratory parameters in healthy young men
Secondary abstract: Introduction: The popularity of blood flow restricted exercise has been increasing in recent years, with its impact in aerobic conditions on respiratory parameters in healthy young people still relatively unexplored. Previous studies have shown that aerobic exercise with blood flow restriction (AEBFR) achieves a certain oxygen consumption (V̇O2) and other metabolic parameters at a lower intensity compared to control exercise (CON), and therefore represents a potential of exercise for people who are unable to perform high loads for various reasons. Purpose: To monitor changes in respiratory and metabolic parameters during short-term stationary AEBFR and in recovery after it. Methods: 21 differently active men, aged between 18 and 35 years, underwent 3 tests on a cycloergometer. For the first time, stress testing was performed to determine V̇O2max and maximal heart rate. The second and third visits followed two exercise protocols, identical in structure, differing only in mode: AEBFR or CON. The protocol consisted of rest (5 min), an effort phase at loads of 40 and 60% V̇O2max (10 min), and a recovery phase (15 min). Results: The largest differences between AEBFR and CON were during the exercise phase in V̇O2 (p≤0,001), V̇CO2 (p<0,001), tpCO2 (p<0,05), V̇E (p<0,001), V̇E/V̇O2 (p<0,001), V̇E/V̇CO2 (p<0,05), RER (p<0,05) and exertion sensation (p<0,001). In the recovery phase, the gaps grew by the first five minutes, and then fell fairly quickly. Compared to resting values, V̇O2 in BFR was elevated for a longer period of time in recovery. Discussion and conclusion: We have proven that at a lower exercise intensity a higher V̇O2 can be achieved in AEBFR compared to control exercise. Anaerobic metabolism is activated earlier, as a result of which oxygen consumption remains elevated for a longer period of time after exertion. AEBFR can be a very useful way of exercising to achieve higher values of V̇O2 and consequently V̇O2max for people who cannot overcome high intensities for various reasons. When planning AEBFR, emphasis should also be placed on the cuff pressure, which must be calculated individually for each subject.
Secondary keywords: master's theses;physiotherapy;aerobic exercise;cycloergometry;respiratory parameters;blood flow restricted exercise;healthy young men;
Type (COBISS): Master's thesis/paper
Study programme: 0
Thesis comment: Univ. v Ljubljani, Zdravstvena fak., Oddelek za fizioterapijo
Pages: 46 str., [5] str. pril.
ID: 25931562