Lower-limb muscle contractile properties, explosive power and the subjective response of elite soccer players to the Covid-19 lockdownArmin Paravlić
, Boštjan Šimunič
, Saša Pišot
, Matej Kleva
, Kaja Teraž
, Matjaž Vogrin
, Uroš Marušič
, Rado Pišot
, 2022, izvirni znanstveni članek
Povzetek: The present study examined the effects of the lockdown period on basic anthropometric measures, countermovement jumping performance, skeletal muscle contractile properties derived from tensiomyography (TMG), injury incidence, and self-assessed general well-being in elite soccer players. A total of 266 players were assessed before (PRE) and 32 players were reassessed 11 days after (POST) the COVID-19 period. Significant changes in the TMG parameters were observed POST compared to PRE: contraction time (Tc) increased from 6% to 50% in vastus lateralis [VL] (p = 0.009) and biceps femoris [BF] (p < 0.001), respectively; whereas radial displacement (Dm) increased for 19% in BF (p = 0.036) and 17% in VL (p < 0.001), respectively. Jumping performance remained unchanged from PRE to POST In addition, athletes rated the lockdown period as a positive event and felt psychologically better during the lockdown, primarily because they spent more time with family members and friends. Although there were no differences in any of the variables describing lower limb muscle power following the two-month lockdown, the altered contractile properties of the assessed muscles suggest suboptimal conditioning of the football players.
Ključne besede: football, male football, power, explosive power, tensiomyography, coronavirus, covid-19, pandemics, lockdown
Objavljeno v DiRROS: 06.01.2022; Ogledov: 277; Prenosov: 225
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COVID-19 related travel restrictions prevented numerous wildlife deaths on roads : ǂa ǂcomparative analysis of results from 11 countriesMichal Bíl
, Richard Andrášik
, Vojtěch Cícha
, Amir Arnon
, Maris Kruuse
, Jochen Langbein
, András Náhlik
, Milla Niemig
, Boštjan Pokorny
, Victor J. Colino-Rabanal
, Christer M. Rolandsen
, Andreas Seiler
, 2021, izvirni znanstveni članek
Povzetek: Millions of wild animals are killed annually on roads worldwide. During spring 2020, the volume of road traffic was reduced globally as a consequence of the COVID-19 pandemic. We gathered data on wildlife-vehicle collisions (WVC) from Czechia, Estonia, Finland, Hungary, Israel, Norway, Slovenia, Spain, Sweden, and for Scotland and England within the United Kingdom. In all studied countries WVC statistics tend to be dominated by large mammals (various deer species and wild boar), while information on smaller mammals as well as birds are less well recorded. The expected number of WVC for 2020 was predicted on the basis of 2015%2019 WVC time series representing expected WVC numbers under normal traffic conditions. Then, the forecasted and reported WVC data were compared. The results indicate varying levels of WVC decrease between countries during the COVID-19 related traffic flow reduction (CRTR). While no significant change was determined in Sweden, where the state-wide response to COVID-19 was the least intensive, a decrease as marked as 37.4% was identified in Estonia. The greatest WVC decrease, more than 40%, was determined during the first weeks of CRTR for Estonia, Spain, Israel, and Czechia. Measures taken during spring 2020 allowed the survival of large numbers of wild animals which would have been killed under normal traffic conditions. The significant effects of even just a few weeks of reduced traffic, help to highlight the negative impacts of roads on wildlife mortality and the need to boost global efforts of wildlife conservation, including systematic gathering of roadkill data.
Ključne besede: wildlife-vehicle collisions, wildlife crash reporting systems, traffic flow, ungulates, mesocarnivores, COVID-19 lockdown
Objavljeno v DiRROS: 03.01.2022; Ogledov: 340; Prenosov: 165
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