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      Returning to Play after Prolonged Training Restrictions in Professional Collision Sports

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          Abstract

          The COVID-19 pandemic in 2020 has resulted in widespread training disruption in many sports. Some athletes have access to facilities and equipment, while others have limited or no access, severely limiting their training practices. A primary concern is that the maintenance of key physical qualities (e. g. strength, power, high-speed running ability, acceleration, deceleration and change of direction), game-specific contact skills (e. g. tackling) and decision-making ability, are challenged, impacting performance and injury risk on resumption of training and competition. In extended periods of reduced training, without targeted intervention, changes in body composition and function can be profound. However, there are strategies that can dramatically mitigate potential losses, including resistance training to failure with lighter loads, plyometric training, exposure to high-speed running to ensure appropriate hamstring conditioning, and nutritional intervention. Athletes may require psychological support given the challenges associated with isolation and a change in regular training routine. While training restrictions may result in a decrease in some physical and psychological qualities, athletes can return in a positive state following an enforced period of rest and recovery. On return to training, the focus should be on progression of all aspects of training, taking into account the status of individual athletes.

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          The psychological impact of quarantine and how to reduce it: rapid review of the evidence

          Summary The December, 2019 coronavirus disease outbreak has seen many countries ask people who have potentially come into contact with the infection to isolate themselves at home or in a dedicated quarantine facility. Decisions on how to apply quarantine should be based on the best available evidence. We did a Review of the psychological impact of quarantine using three electronic databases. Of 3166 papers found, 24 are included in this Review. Most reviewed studies reported negative psychological effects including post-traumatic stress symptoms, confusion, and anger. Stressors included longer quarantine duration, infection fears, frustration, boredom, inadequate supplies, inadequate information, financial loss, and stigma. Some researchers have suggested long-lasting effects. In situations where quarantine is deemed necessary, officials should quarantine individuals for no longer than required, provide clear rationale for quarantine and information about protocols, and ensure sufficient supplies are provided. Appeals to altruism by reminding the public about the benefits of quarantine to wider society can be favourable.
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            Association of Cardiac Injury With Mortality in Hospitalized Patients With COVID-19 in Wuhan, China

            Coronavirus disease 2019 (COVID-19) has resulted in considerable morbidity and mortality worldwide since December 2019. However, information on cardiac injury in patients affected by COVID-19 is limited.
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              [The epidemiological characteristics of an outbreak of 2019 novel coronavirus diseases (COVID-19) in China].

              (2020)
              Objective: An outbreak of 2019 novel coronavirus diseases (COVID-19) in Wuhan, China has spread quickly nationwide. Here, we report results of a descriptive, exploratory analysis of all cases diagnosed as of February 11, 2020. Methods: All COVID-19 cases reported through February 11, 2020 were extracted from China's Infectious Disease Information System. Analyses included: 1) summary of patient characteristics; 2) examination of age distributions and sex ratios; 3) calculation of case fatality and mortality rates; 4) geo-temporal analysis of viral spread; 5) epidemiological curve construction; and 6) subgroup analysis. Results: A total of 72 314 patient records-44 672 (61.8%) confirmed cases, 16 186 (22.4%) suspected cases, 10567 (14.6%) clinical diagnosed cases (Hubei only), and 889 asymptomatic cases (1.2%)-contributed data for the analysis. Among confirmed cases, most were aged 30-79 years (86.6%), diagnosed in Hubei (74.7%), and considered mild (80.9%). A total of 1 023 deaths occurred among confirmed cases for an overall case-fatality rate of 2.3%. The COVID-19 spread outward from Hubei sometime after December 2019 and by February 11, 2020, 1 386 counties across all 31 provinces were affected. The epidemic curve of onset of symptoms peaked in January 23-26, then began to decline leading up to February 11. A total of 1 716 health workers have become infected and 5 have died (0.3%). Conclusions: The COVID-19 epidemic has spread very quickly. It only took 30 days to expand from Hubei to the rest of Mainland China. With many people returning from a long holiday, China needs to prepare for the possible rebound of the epidemic.
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                Author and article information

                Journal
                Int J Sports Med
                Int J Sports Med
                10.1055/s-00000028
                International Journal of Sports Medicine
                Georg Thieme Verlag KG (Rüdigerstraße 14, 70469 Stuttgart, Germany )
                0172-4622
                1439-3964
                October 2020
                29 May 2020
                : 41
                : 13
                : 895-911
                Affiliations
                [1 ]Department for Health, University of Bath, Bath, United Kingdom of Great Britain and Northern Ireland
                [2 ]Medical Services, Rugby Football Union, Twickenham, United Kingdom of Great Britain and Northern Ireland
                [3 ]Carnegie Applied Rugby Research (CARR) Centre, Leeds Beckett University Carnegie Faculty, Leeds, United Kingdom of Great Britain and Northern Ireland
                [4 ]Leeds Rhinos Rugby League Club, Leeds, United Kingdom of Great Britain and Northern Ireland
                [5 ]England Performance Unit, Rugby Football League Ltd, Leeds, United Kingdom of Great Britain and Northern Ireland
                [6 ]Division of Exercise Science and Sports Medicine, University of Cape Town, Faculty of Health Sciences, Cape Town, South Africa
                [7 ]Rugby Union of Russia, Moscow, Russian Federation
                [8 ]Applied Sport Technology Exercise and Medicine Research Centre (A-STEM), Swansea University College of Engineering, Swansea, United Kingdom of Great Britain and Northern Ireland
                [9 ]Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom of Great Britain and Northern Irelan
                [10 ]Professional Rugby Department, Rugby Football Union, Twickenham, United Kingdom of Great Britain and Northern Ireland
                [11 ]New Zealand Rugby Union, Wellington, New Zealand
                [12 ]Te HuatakiWaiora School of Health, University of Waikato, Hamilton, New Zealand
                [13 ]Department of Respiratory Medicine, Royal Brompton Hospital, London, United Kingdom of Great Britain and Northern Ireland
                [14 ]Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom of Great Britain and Northern Ireland
                [15 ]Sport Science & Medicine, England and Wales Cricket Board, Loughborough, United Kingdom of Great Britain and Northern Ireland
                [16 ]School of Sport and Health Sciences, University of Exeter, Exeter, United Kingdom of Great Britain and Northern Ireland
                Author notes
                Correspondence Dr. Keith A. Stokes Department for Health, University of Bath, Claverton DownBathBA2 7AYUnited Kingdom of Great Britain and Northern Ireland+44(0)1225 384190+44(0)1225 383833 k.stokes@ 123456bath.ac.uk
                Author information
                http://orcid.org/0000-0002-5049-2838
                Article
                ijsm8292
                10.1055/a-1180-3692
                7799169
                32483768
                5e56cda6-96ec-4e78-97cb-963281b1193f
                Copyright @ 2020

                This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

                History
                : 14 May 2020
                : 14 May 2020
                Categories
                Review

                covid-19,rugby,coronavirus,detraining,retraining,disuse
                covid-19, rugby, coronavirus, detraining, retraining, disuse

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