21. Effect of a warm-up protocol with and without facemask-use against COVID-19 on cognitive function : ǂa ǂpilot, randomized counterbalanced, cross-sectional studyMaamer Slimani, Bianca Miarka, Hela Znazen, Wassim Moalla, Amri Hammami, Armin Paravlić, Nicola Luigi Bragazzi, 2021, izvirni znanstveni članek Povzetek: The present study aimed to verify the effect of a warm-up protocol with and without facemask-use on cognitive function. The sample was composed of 17 healthy, non-smoking physical education students (age = 17.6 years, height = 1.71 m, and body mass = 69.7 kg). They were randomized to perform 15 min of warm-up exercises, while wearing a cloth facemask (EXP) or no mask (CON) on two separate occasions, with at least 48-h separating conditions. Rate of perceived exertion (RPE) and d2 Attention assessment were used to verify cognitive function, using a repeated measures general linear model. The warm-up improved cognitive abilities and the results demonstrated significant differences between the EXP vs. CON groups in post-concentration performance (186.06 % 15.47 EXP-score vs. 178.12 % 13.66 CON-score), post the total number of errors (23.47 % 14.50 EXP-frequency < 29.06 % 13.74 CON-frequency), and in the post RPE (6.0 % 1.37 EXP-index > 4.7 % 0.85 CON-index). Wearing a cloth facemask caused positive effects on cognitive function. This data suggests that wearing a cloth facemask during warm-up may stimulate/improve the cognitive function.
Ključne besede: pandemic, coronavirus, COVID-19, physical activities, exercises, facemasks, warm-up protocol, cognitive functions, neuropsychological tests
Objavljeno v DiRROS: 11.06.2021; Ogledov: 984; Prenosov: 1530
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22. Higher neural demands on stimulus processing after prolonged hospitalization can be mitigated by a cognitively stimulating environmentUroš Marušič, Rado Pišot, Voyko Kavcic, 2021, izvirni znanstveni članek Povzetek: Prolonge d periods of complete physical inactivity or bed rest trigger various alterations in the functional and metabolic levels of the human body. However, bed rest-related adaptations of the central nervous system are less known and thoroughly studied. The aim of this study was to investigate brain electrophysiological changes using event-related potentials (ERPs) after 14 days of bed rest and 12 consecutive sessions of computerized cognitive training (CCT). Sixteen older (Mage= 60 years) healthy volunteers were randomly divided into a CCT treatment group and an active control group. All participants performed ERP measurements based on the foveal visual presentation of a circle on a black background before and after bed rest. After 14 days of bed rest, participants in the control group showed increased peak P1 amplitude (p = .012), decreased P1 latency (p = .024), and increased P2 amplitude (p = .036), while the CCT group also showed decreased P1 latency (p = .023) and decreased P2 latency (p = .049). Our results suggest that, even from a central adaptation perspective, prolonged periods of physical inactivity or bed rest trigger additional neural recruitment and should therefore be minimized, and that CCT may serve as a tool to mitigate this. Future research should focus on other aspects of central nervous system adaptation following periods of immobilization/hospitalization to improve our knowledge of infl uence of physical inactivity and its eff ects on cortical activity and to develop appropriate countermeasures to mitigate functional dysregulation.
Ključne besede: aging, physical inactivity, immobilization, electroencephalography, EEG, computerized cognitive training
Objavljeno v DiRROS: 13.05.2021; Ogledov: 1196; Prenosov: 842
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23. Children's daily routine response to COVID-19 emergency measures in SerbiaJovan Vuković, Radenko Matić, Ivana Milovanović, Nebojša Maksimović, Dragan Krivokapić, Saša Pišot, 2021, drugi znanstveni članki Povzetek: Objective: The emergence of coronavirus in Serbia as well as in other European countries led to the declaration of a state of emergency, which, among other measures, included a switch to online education, the lockdown of public life and organized sports, and a curfew from 5 pm to 5 am. This study aimed to investigate the extent to which these measures affected children's daily routines. More specifically, it aimed to determine how children maintained their learning, physical activity, and screen time routines from the period before the state of emergency was declared. Methods: Response to an online parent-reported questionnaire was conducted (N = 450). The factorial validity of the scales was prepared using confirmatory factor analysis, with acceptable fit indices. Based on that, the authors tested the interrelations between dimensions using structural equation modeling in SPSS, AMOS 24.0. Results: The study results indicate a positive relationship between school achievement and study time (% = 0.25). They also indicate that children who were physically active before the pandemic continued their activities during the emergency state (% = 0.53). Physical activity impact during the COVID-19 emergency measures reduces children%s behavior changes (% = 0.55). Finally, they highlight that children who spent more time with multimedia content had greater changes in anxiety, sensitivity, nervousness, and worry due to COVID-19 emergency measures (% = %0.38). Conclusions: Healthy lifestyle habits formed in childhood are suggested to be responsible for the greater %resistance to change% shown by the children from this study.
Ključne besede: children, daily routine, school achievement, physical activity, coronavirus, COVID-19, pandemic, restrictions, emergency measures, Serbia
Objavljeno v DiRROS: 22.04.2021; Ogledov: 1233; Prenosov: 1003
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24. Globally altered sleep patterns and physical activity levels by confinement in 5056 individuals : ECLB COVID-19 international online surveyKhaled Trabelsi, Achraf Ammar, Liwa Masmoudi, Omar Boukhris, Hamdi Chtourou, Bassem Bouaziz, Michael Brach, Boštjan Šimunič, Rado Pišot, Saša Pišot, 2021, izvirni znanstveni članek Povzetek: Symptoms of psychological distress and disorder have been widely reported in people under quarantine during the COVID-19 pandemic; in addition to severe disruption of peoples% daily activity and sleep patterns. This study investigates the association between physical-activity levels and sleep patterns in quarantined individuals. An international Google online survey was launched in April 6th, 2020 for 12-weeks. Forty-one research organizations from Europe, North-Africa, Western-Asia, and the Americas promoted the survey through their networks to the general society, which was made available in 14 languages. The survey was presented in a differential format with questions related to responses %before% and %during% the confinement period. Participants responded to the Pittsburgh Sleep Quality Index (PSQI) questionnaire and the short form of the International Physical Activity Questionnaire. 5056 replies (59.4% female), from Europe (46.4%), Western-Asia (25.4%), America (14.8%) and North-Africa (13.3%) were analysed. The COVID-19 home confinement led to impaired sleep quality, as evidenced by the increase in the global PSQI score (4.37 % 2.71 before home confinement vs. 5.32 % 3.23 during home confinement) (p < 0.001). The frequency of individuals experiencing a good sleep decreased from 61% (n = 3063) before home confinement to 48% (n = 2405) during home confinement with highly active individuals experienced better sleep quality (p < 0.001) in both conditions. Time spent engaged in all physical-activity and the metabolic equivalent of task in each physical-activity category (i.e., vigorous, moderate, walking) decreased significantly during COVID-19 home confinement (p < 0.001). The number of hours of daily-sitting increased by ~2 hours/days during home confinement (p < 0.001). COVID-19 home confinement resulted in significantly negative alterations in sleep patterns and physical-activity levels. To maintain health during home confinement, physical-activity promotion and sleep hygiene education and support are strongly warranted.
Ključne besede: coronavirus, COVID-19, pandemic, public health, restrictions, isolation, home confinement, psychosocial health, sleep, sedentary lifestyle, physical activities, lifestyle, behaviours
Objavljeno v DiRROS: 24.03.2021; Ogledov: 10660; Prenosov: 824
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25. Decrease in cellular nanovesicles concentration in blood of athletes more than 15 hours after marathonZala Jan, Mitja Drab, Damjana Drobne, Apolonija Bedina Zavec, Mojca Benčina, Barbara Drašler, Matej Hočevar, Judita Lea Krek, Ljubiša Pađen, Manca Pajnič, Neža Repar, Boštjan Šimunič, Roman Štukelj, Veronika Kralj-Iglič, 2021, izvirni znanstveni članek Povzetek: Introduction: Cellular nanovesicles (CNVs), that are shed from cells, have been recognized as promising indicators of health status. We analyzed the effect of long-distance running on concentration of CNVs, along with some standard blood parameters, in 27 athletes two days before and > 15 hours after physical effort. Methods: CNVs were isolated by repetitive centrifugation and washing of samples, and assessed by flow cytometry. Cholinesterase (ChE) and glutathione S-transferase (GST) activity were measured spectrophotometrically. Interleukin 6 (IL-6) and tumor necrosis factor-% (TNF-%) concentrations were measured using enzyme-linked immunosorbent assay (ELISA). C-reactive protein (CRP) was measured with immunoturbidimetric determination and lipidogram parameters were measured by enzymatic colorimetric assay. Flow cytometry was used for blood cell count and mean platelet volume (MPV) measurement. Results: More than 15 hours after physical effort a decrease was found in CNVs% concentration in isolates from blood (46%; p< 0.05), in ChE activity in whole blood (47%; p< 0.001), in plasma (34%; p< 0.01), and in erythrocyte suspension (54%; p< 0.001), as well as in GST activity in erythrocyte suspension (16%; p< 0.01) and in IL-6 concentration in plasma (63%; p< 0.05). We found no change in GST activity in plasma and in TNF-% concentration in plasma. Correlations (> 0.8; p< 0.001) between CNVs% concentration and ChE activity, and GST activity, respectively, in erythrocyte suspension were found. Conclusion: We found that > 15 hours post-physical effort, CNVs% concentration was below the initial value, concomitant with other measured parameters: ChE and GST activity as well as IL-6 concentration, indicating a favorable effect of physical effort on health status. CNVs% concentration and ChE activity in isolates from peripheral blood proved to have potential as indicators of the response of the human body to inflammation after physical effort. Physical activity should be considered as an important factor in preparation of subjects for blood sampling in procedures focusing on CNV-containing diagnostic and therapeutic compounds.
Ključne besede: membrane vesiculation, physical effort, blood samples, inflammation process, cellular nanovesicles, marathon
Objavljeno v DiRROS: 25.01.2021; Ogledov: 1329; Prenosov: 1624
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26. Physical activity drops during summer holidays for 6- to 9-year-old childrenTadeja Volmut, Rado Pišot, Jurij Planinšec, Boštjan Šimunič, 2021, izvirni znanstveni članek Povzetek: Regular physical activity (PA) reduces the health risk of childhood obesity and associated chronic diseases as well as mental health problems. Since PA declines as children age as well with future generations it is of highest importance to intervene in school and out-of-school settings. Out-of-school periods affect children's PA as it is mainly left to the interest and motivation of their parents. We compared accelerometer-based PA patterns in 93 6- to 9-year old children assessed four times: before (May/June), during (August), and after (September) summer holidays and at a 1-year follow up (May/June). Before summer holidays children were assessed also for anthropometry and motor tests. During summer holidays overall PA decreased by 18% (p < 0.001), physical inactivity increased by 5.5% (p < 0.001), moderate PA decreased by 53% (p < 0.001) and moderate to vigorous PA decreased by 45% (p < 0.001) when compared to before summer holidays. Furthermore, overall PA remained diminished also after summer holidays by 8.8% (p = 0.001) but recovered to baseline values at 1-year follow up. About 30% of overall PA and moderate to vigorous PA decrease during summer holidays could be explained by children's fitness level as a greater decrease was found in children with better results in standing long jump and 300-meter running time. Our finding detects an alarming summer holiday decrease in children PA that should not be neglected in future studies and intervention designs.
Ključne besede: MVPA, children, vacations, physical inactivity, sedentary behavior, accelerometer
Objavljeno v DiRROS: 19.01.2021; Ogledov: 1147; Prenosov: 1007
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27. Psychological consequences of COVID-19 home confinement : the ECLB-COVID19 multicenter studyAchraf Ammar, Patrick Mueller, Khaled Trabelsi, Hamdi Chtourou, Omar Boukhris, Liwa Masmoudi, Bassem Bouaziz, Michael Brach, Marlen Schmicker, Boštjan Šimunič, Rado Pišot, 2020, izvirni znanstveni članek Povzetek: Background Public health recommendations and government measures during the COVID-19 pandemic have enforced restrictions on daily-living. While these measures are imperative to abate the spreading of COVID-19, the impact of these restrictions on mental health and emotional wellbeing is undefined. Therefore, an international online survey (ECLB-COVID19) was launched on April 6, 2020 in seven languages to elucidate the impact of COVID-19 restrictions on mental health and emotional wellbeing. Methods The ECLB-COVID19 electronic survey was designed by a steering group of multidisciplinary scientists, following a structured review of the literature. The survey was uploaded and shared on the Google online-survey-platform and was promoted by thirty-five research organizations from Europe, North-Africa, Western-Asia and the Americas. All participants were asked for their mental wellbeing (SWEMWS) and depressive symptoms (SMFQ) with regard to %during% and %before% home confinement. Results Analysis was conducted on the first 1047 replies (54% women) from Asia (36%), Africa (40%), Europe (21%) and other (3%). The COVID-19 home confinement had a negative effect on both mental-wellbeing and on mood and feelings. Specifically, a significant decrease (p < .001 and %% = 9.4%) in total score of the SWEMWS questionnaire was noted. More individuals (+12.89%) reported a low mental wellbeing %during% compared to %before% home confinement. Furthermore, results from the mood and feelings questionnaire showed a significant increase by 44.9% (p < .001) in SMFQ total score with more people (+10%) showing depressive symptoms %during% compared to %before% home confinement. Conclusion The ECLB-COVID19 survey revealed an increased psychosocial strain triggered by the home confinement. To mitigate this high risk of mental disorders and to foster an Active and Healthy Confinement Lifestyle (AHCL), a crisis-oriented interdisciplinary intervention is urgently needed.
Ključne besede: coronavirus, COVID-19, pandemic, public health, restrictions, isolation, home confinement, psychosocial health, psychological consequences, mental health, emotions, wellbeing, physical inactivity
Objavljeno v DiRROS: 18.12.2020; Ogledov: 1399; Prenosov: 1190
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28. Maintaining everyday life praxis in the time of COVID-19 pandemic measures (ELP-COVID-19 survey)Saša Pišot, Ivana Milovanović, Boštjan Šimunič, Ambra Gentile, Ksenja Bosnar, Franjo Prot, Antonino Bianco, Gianluca Lo Coco, Sunčica Bartoluci, Darko Katović, 2020, izvirni znanstveni članek Povzetek: Background The extreme social circumstances caused by declared COVID-19 pandemic deeply intervene people's everyday life and should not be neglected but seen through the view of social reality pinpointing the "ordinary" people. In this paper, authors explored basic segments of everyday and their subjective perception to what extent sleeping habits, physical inactivity, physical activity, nutritional habits and smoking have changed. Methods The online survey was conducted in nine European countries (Bosnia and Herzegovina, Croatia, Greece, Kosovo, Italy, Serbia, Slovakia, Slovenia and Spain) in 4108 participants, aged 15-82 years. The survey took place 30 to 40 days after WHO declared COVID-19 pandemic state, from April 15th to May 3rd, 2020. Results The results have shown 30%minutes longer sleeping time, 50% longer physical inactivity time, 65% longer screen time, 43% shorter walking time, 24% shorter sport time and 37% longer physical work time. Additionally, body mass gains (0.3%kg) could be explained in 20.6% with meals sizes, unhealthy food consumption, screen time and sport time. Further, respondents reported more regular meals (44%) and healthier meals with less alcohol consumption and less smoking, which have been positive outcomes of home confinement. Conclusion The findings draw attention to negative changes in everyday praxis (inactivity, body mass gain) after such a short period. Because of possible risk to population's health (especially of countries such as Italy and Spain with serious threat and more stringent measures), findings enable development of recommendations for maintaining healthy lifestyle habits with minimal negative health consequences in similar pandemic circumstances.
Ključne besede: coronavirus pandemic, COVID-19 pandemic measures, daily life praxis, physical activity, sleeping habits, eating habits, public health
Objavljeno v DiRROS: 18.12.2020; Ogledov: 1457; Prenosov: 709
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29. Effects of COVID-19 home confinement on eating behaviour and physical activity : results of the ECLB-COVID19 international online surveyAchraf Ammar, Michael Brach, Khaled Trabelsi, Hamdi Chtourou, Omar Boukhris, Liwa Masmoudi, Bassem Bouaziz, Ellen Bentlage, Daniella How, Mona Ahmed, Boštjan Šimunič, Rado Pišot, 2020, izvirni znanstveni članek Ključne besede: pandemic, public health, physical activity, nutrition, COVID-19
Objavljeno v DiRROS: 18.12.2020; Ogledov: 1416; Prenosov: 1433
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30. The relationship between physical activity and quality of life during the confinement induced by COVID-19 outbreak : a pilot Study in TunisiaMaamer Slimani, Armin Paravlić, Faten Mbarek, Nicola Luigi Bragazzi, David Tod, 2020, izvirni znanstveni članek Ključne besede: coronavirus, COVID-19, prevention, psychosocial confinement, physical activity
Objavljeno v DiRROS: 18.12.2020; Ogledov: 1299; Prenosov: 1007
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