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| rdf:type
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| Description
| - Exercise intensity causes changes in the activity of both branches of the autonomic nervous system (ANS) as involved in cardiovascular system regulation. Reduction in vagal activity and an increase in sympatho-adrenal activity is associated with an increase in death risk from both cardiac and arrhythmic causes during exercise. The main aim of this work was to develop a simple mathematic algorithm for determination of critical exercise intensity, at which, if exceeded, the cardiovascular system starts to be influenced dominantly by rising sympathetic activity including catecholamine and a significant withdrawal in cardiac vagal activity (vagal threshold - TVA) occurs. The testing group consisted of 10 volunteers (men). Their mean age was 27.24 +- 3.23 years and the mean value of their maximal oxygen uptake (VO2max) was 50.24 +- 4.63 ml.kg-1.min-1. ANS activity was monitored by the microprocessor diagnostics system VarCor PF 7 and assessed by a non invasive spectral analysis (SA) of heart rate
- Exercise intensity causes changes in the activity of both branches of the autonomic nervous system (ANS) as involved in cardiovascular system regulation. Reduction in vagal activity and an increase in sympatho-adrenal activity is associated with an increase in death risk from both cardiac and arrhythmic causes during exercise. The main aim of this work was to develop a simple mathematic algorithm for determination of critical exercise intensity, at which, if exceeded, the cardiovascular system starts to be influenced dominantly by rising sympathetic activity including catecholamine and a significant withdrawal in cardiac vagal activity (vagal threshold - TVA) occurs. The testing group consisted of 10 volunteers (men). Their mean age was 27.24 +- 3.23 years and the mean value of their maximal oxygen uptake (VO2max) was 50.24 +- 4.63 ml.kg-1.min-1. ANS activity was monitored by the microprocessor diagnostics system VarCor PF 7 and assessed by a non invasive spectral analysis (SA) of heart rate (en)
- Cílem této studie bylo navrhnout jednoduchý matematický postup, podle kterého by bylo možno stanovit takovou hraniční intenzitu zatížení, nad kterou se redukovaná vagová aktivita dále výrazně nemění a kardiovaskulární systém je dominantně řízen zvyšující se aktivitou sympatoadrenálního systému (vagový práh ? TVA). Testovaný soubor tvořilo 10 mužů ve věku 27,24 +- 3,23 let s hodnotou maximální spotřeby kyslíku 50,24 +- 4,63 ml.kg-1.min-1. Aktivita ANS byla hodnocena pomocí neinvazivní metody spektrální analýzy (SA) variability srdeční frekvence (HRV). Změny v autonomní kardiální regulaci byly posuzovány během chůze na běhátku v setrvalém stavu při intenzitách zatížení od 20 do 70 % maximální tepové rezervy (MTR). Zvýšení intenzity zatížení o 10 % MTR v rozmezí od 20 do 70 % MTR vedlo vždy k signifikantnímu snížení aktivity vagu. Navržený postup pro stanovení deflekčního bodu křivky závislosti PHF na intenzitě zatížení, za kterým již PHF výrazně neklesá, umožnil identifikovat TVA na úrovni 43, (cs)
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| Title
| - Determination of the vagal threshold and changes of it's using
- Stanovení vagového prahu a možnosti jeho využítí (cs)
- Determination of the vagal threshold and changes of it's using (en)
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| skos:prefLabel
| - Determination of the vagal threshold and changes of it's using
- Stanovení vagového prahu a možnosti jeho využítí (cs)
- Determination of the vagal threshold and changes of it's using (en)
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| skos:notation
| - RIV/61989592:15510/08:00006278!RIV09-MSM-15510___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15510/08:00006278
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - spectral analysis of heart rate variability; exercise intensity; vagal threshold , prescription of the training exercise.\ (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Acta Universitatis Palackianae Olomucensis. Gymnica
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Botek, Michal
- Gába, Aleš
- Stejskal, Pavel
- Jakubec, Aleš
- Krejčí, Jakub
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
| |
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