Sylva Hřebíčková

Global Correlates of Cardiovascular Risk: A Comparison of 158 Countries

The aim of this study was a large-scale ecological analysis of nutritional and other environmental factors potentially associated with the incidence of cardiovascular diseases (CVDs) in the global context. Indicators of CVDs from 158 countries were compared with the statistics of mean intake (supply) of 60 food items between 1993 and 2011, obesity rates, health expenditure and life expectancy. This comparison shows that the relationship between CVD indicators (raised blood pressure, CVD mortality, raised blood glucose) and independent variables in the global context is influenced by various factors, such as short life expectancy, religiously conditioned dietary customs, the imprecision of some statistics and undernutrition. However, regardless of the statistical method used, the results always show very similar trends and identify high carbohydrate consumption (mainly in the form of cereals and wheat, in particular) as the dietary factor most consistently associated with the risk of CVDs. These findings are in line with the changing view of the causes of CVDs. Because only the statistics of raised blood glucose include people using medications and reflect true prevalence that is independent of healthcare, more objective data on the prevalence of CVDs are needed to confirm these observed trends.

Correction to ‘The mountains of giants: an anthropometric survey of male youths in Bosnia and Herzegovina’

[This corrects the article DOI: 10.1098/rsos.161054.].

3D kinematická analýza bikrosového startu

Přispěvek se zabýva technikou bikrosoveho startu. Cilem studie je na zakladě kinematograficke metody analyzovat jednotlive faze bikrosoveho startu a urcit zakladni kinematicke parametry jeho prvnich pohybů. Měřeni jsme provedli s využitim systemu Simi motion 7. Bikrosový start provedli dva reprezentanti Ceske republiky, jeden muž a jedna žena. Výsledkem nasi prace je rozděleni startovniho pohybu do pěti zakladnich fazi a jejich rozbor. U pocatecnich pohybů jsme vyhodnotili zakladni kinematicke parametry, pomoci kterých jsme u testovaných osob porovnali rozdily v technickem provedeni.

Biomechanické a kineziologické aspekty techniky bikrosového startu

Přispěvek se zabýva technikou bikrosoveho startu. Na zakladě analýzy limitujicich faktorů výkonu poukazujeme na start, jakožto na jednu z nejdůležitějsich fazi celeho bikrosoveho zavodu. Optimalni provedeni startu je založeno na respektovani kineziologických a biomechanických zakonitosti, jimiž se v přispěvku zabývame. Cilem teto studie je vytvořit teoretický zaklad, na němž bude možno stavět empiricke prace zabývajici se problematikou optimalizace bikrosoveho startu.