Jiří Dvořák

ORCID: 0000-0002-3714-7781
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About
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Research Areas
  • Sports injuries and prevention
  • Traumatic Brain Injury Research
  • Cardiovascular Effects of Exercise
  • Invertebrate Immune Response Mechanisms
  • Injury Epidemiology and Prevention
  • Environmental Toxicology and Ecotoxicology
  • Insect Utilization and Effects
  • Gut microbiota and health
  • Eating Disorders and Behaviors
  • Shoulder Injury and Treatment
  • Nanoparticles: synthesis and applications
  • Nail Diseases and Treatments
  • Aquaculture disease management and microbiota
  • Uterine Myomas and Treatments
  • Invertebrate Taxonomy and Ecology
  • Medical and Biological Sciences
  • Trauma and Emergency Care Studies
  • Microstructure and mechanical properties
  • Diet and metabolism studies
  • Composting and Vermicomposting Techniques
  • Fungal Biology and Applications
  • Inflammatory Bowel Disease
  • Clostridium difficile and Clostridium perfringens research
  • Escherichia coli research studies
  • Metabolism and Genetic Disorders

Charles University
2017-2025

General University Hospital in Prague
2023-2025

Czech Academy of Sciences
2011-2024

Engineering Academy of the Czech Republic
2024

Czech Academy of Sciences, Institute of Microbiology
2013-2023

Institute of Haematology and Blood Transfusion
2022

Fédération Internationale de Football Association
2002-2017

Schulthess-Klinik
1991-2017

Institute of Clinical and Experimental Medicine
2017

Czech Academy of Sciences, Institute of Experimental Medicine
2017

Objective To examine the effect of a comprehensive warm-up programme designed to reduce risk injuries in female youth football. Design Cluster randomised controlled trial with clubs as unit randomisation. Setting 125 football from south, east, and middle Norway (65 clusters intervention group; 60 control group) followed for one league season (eight months). Participants 1892 players aged 13-17 (1055 837 group). Intervention A improve strength, awareness, neuromuscular during static dynamic...

10.1136/bmj.a2469 article EN cc-by-nc BMJ 2008-12-09

Participants' compliance, attitudes and beliefs have the potential to influence efficacy of an intervention greatly.To characterise team player compliance with a comprehensive injury prevention warm-up programme for football (The 11+), assess towards among coaches their association risk.A prospective cohort study retrospective survey based on cluster-randomised controlled trial teams as unit randomisation.Compliance, exposure injuries were registered prospectively in 65 125 (1055 1892 female...

10.1136/bjsm.2009.070672 article EN British Journal of Sports Medicine 2010-06-15

To characterize the gut bacterial microbiota of patients with primary sclerosing cholangitis (PSC) and ulcerative colitis (UC).

10.3748/wjg.v23.i25.4548 article EN cc-by-nc World Journal of Gastroenterology 2017-01-01

The purpose of this study was to determine the clinical validity functional flexion-extension roentgenograms lumbar spine in a defined patient population. One hundred and one adults with low-back pain or disorders underwent passive flexionextension examinations. Their were analyzed using computer-assisted method segmental motion parameters such as rotation translation vertebrae. population broken down into five groups similar pathologies physical conditions, their compared normal each other....

10.1097/00007632-199108000-00014 article EN Spine 1991-08-01

In reviewing the literature on sports injuries, few studies could be found in which exposure related incidences of injury different types sport were compared. These indicated that ice hockey, handball, basketball, soccer, and rugby are popular team with a relatively high risk injury. The aim study was to compare characteristics incidence injuries male youth amateur soccer players.This prospective cohort comprised an initial baseline examination ascertain players their level performance, one...

10.1136/bjsm.2002.003020 article EN British Journal of Sports Medicine 2004-03-23

To describe risk factors for injuries in elite female soccer.

10.1136/bjsm.2006.027540 article EN British Journal of Sports Medicine 2006-07-06

To identify those risk factors that have the greatest impact on incidence of head and neck injuries in international football.A case-control study players sustaining during 20 FIFA tournaments (men women) from 1998 to 2004. Video recordings incidents were used a range parameters associated with incidents. Team physicians provided medical reports describing nature each injury. chi2 tests (p< or =0.01) 95% confidence intervals assess differences distribution injury, respectively.In total, 248...

10.1136/bjsm.2005.018937 article EN British Journal of Sports Medicine 2005-07-25

Brain-gut microbiota interactions are intensively studied in connection with various neurological and psychiatric diseases. While anorexia nervosa (AN) pathophysiology is not entirely clear, it presumably linked to microbiome dysbiosis. We aimed elucidate the gut contribution AN disease pathophysiology. analyzed composition diversity of patients (bacteriome mycobiome) from stool samples before after renourishment, compared them healthy controls. Further, levels assorted neurotransmitters...

10.1080/19490976.2021.1902771 article EN cc-by Gut Microbes 2021-01-01

While injuries in football (soccer) have been the subject of numerous publications, little information is available about injury risk futsal.Analysis incidence and characteristics futsal players during top-level international tournaments.Prospective survey.Player three consecutive Futsal World Cups were analysed using an established report system. The physicians all participating teams reported after each match on a standardised form. average response rate was 93%.A total 165 from 127...

10.1136/bjsm.2010.076752 article EN British Journal of Sports Medicine 2010-10-19

The Concussion Recognition Tool 5 (CRT5) is the most recent revision of Pocket Sport Assessment 2 that was initially introduced by in Group 2005. CRT5 designed to assist non-medically trained individuals recognise signs and symptoms possible sport-related concussion provides guidance for removing an athlete from play/sport seek medical attention. This paper presents development highlights differences between prior versions instrument.

10.1136/bjsports-2017-097508 article EN British Journal of Sports Medicine 2017-04-26

The purpose of this paper is to summarise the methodology for 5th International Consensus Conference on Concussion in Sport. 18 months preparation included engagement a scientific committee, an expert panel 33 individuals field concussion and modified Delphi technique determine primary questions be answered. also involved writing 12 systematic reviews inform consensus conference submission review abstracts. meeting itself followed 2-day open format, 1-day closed two additional half day...

10.1136/bjsports-2017-097569 article EN British Journal of Sports Medicine 2017-04-26

The change in the gut microbiome and microbial metabolites a patient suffering from severe enduring anorexia nervosa (AN) diagnosed with small intestinal bacterial overgrowth syndrome (SIBO) was investigated. Microbial dysbiosis is associated both AN SIBO, therefore changes by serial fecal microbiota transplantation (FMT) possible therapeutic modality. This study assessed effects of FMT on barrier function, composition, levels metabolic products. treatment led to improvement which altered...

10.3390/microorganisms7090338 article EN cc-by Microorganisms 2019-09-10

Background: Cross-sectional studies have indicated that neurocognitive performance may be impaired among football players. Heading the ball has been suggested as cause, but recent reviews state reported deficits are more likely to result of head injuries. Objective: To examine association between previous concussions and heading exposure with on computer based neuropsychological tests professional Norwegian Methods: Players in league (Tippeligaen) performed two consecutive baseline...

10.1136/bjsm.2005.019646 article EN British Journal of Sports Medicine 2005-07-25

Psoriatic patients have altered microbiota, both in the intestine and on skin. It is not clear, however, whether this a cause or consequence of disease. In study, using an experimental mouse model psoriasis induced by imiquimod (IMQ), we show that oral treatment with broad spectrum antibiotics (MIX) metronidazole (MET) alone mitigates severity skin inflammation through downregulation Th17 immune response conventional mice. Since some antibiotics, including MET, can influence system...

10.3389/fmicb.2019.00236 article EN cc-by Frontiers in Microbiology 2019-02-21

Recurrent aphthous stomatitis (RAS) is the most common disease of oral mucosa, and it has been recently associated with bacterial fungal dysbiosis. To study this link further, we investigated microbial shifts during RAS manifestation at an ulcer site, in its surroundings, unaffected compared healed mucosa patients healthy controls. We sampled microbes from five distinct sites cavity. The one site pronounced differences alpha beta diversity between controls was lower labial mucosa. Detailed...

10.3390/microorganisms7120636 article EN cc-by Microorganisms 2019-12-01

Nanomaterials (NMs) can interact with the innate immunity of organisms. It remains, however, unclear whether these interactions compromise immune functioning host when faced a disease threat. Co-exposure pathogens is thus powerful approach to assess immuno-safety NMs. In this paper, we studied impacts in vivo exposure biocidal NM on gut microbiome, responses, and susceptibility bacterial challenge an earthworm. Eisenia fetida were exposed CuO-nanoparticles soil for 28 days, after which...

10.3390/nano10071337 article EN cc-by Nanomaterials 2020-07-09
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