scispace - formally typeset
Search or ask a question

Showing papers by "Australian Catholic University published in 2021"


Journal ArticleDOI
TL;DR: The empirical results show that listed firms across these countries, financial and non-financial firms alike, experience significant increase in conditional correlations between their stock returns, however, the magnitude of increase in these correlations is considerably higher for financial firms during the COVID-19 outbreak.

533 citations


Journal ArticleDOI
01 Oct 2021
TL;DR: More than half of COVID-19 survivors experienced persistent postacute sequelae (PASC) 6 months after recovery as mentioned in this paper, and most common PASC involved functional mobility impairments, pulmonary abnormalities, and mental health disorders.
Abstract: Importance Short-term and long-term persistent postacute sequelae of COVID-19 (PASC) have not been systematically evaluated. The incidence and evolution of PASC are dependent on time from infection, organ systems and tissue affected, vaccination status, variant of the virus, and geographic region. Objective To estimate organ system–specific frequency and evolution of PASC. Evidence Review PubMed (MEDLINE), Scopus, the World Health Organization Global Literature on Coronavirus Disease, and CoronaCentral databases were searched from December 2019 through March 2021. A total of 2100 studies were identified from databases and through cited references. Studies providing data on PASC in children and adults were included. The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines for abstracting data were followed and performed independently by 2 reviewers. Quality was assessed using the Newcastle-Ottawa Scale for cohort studies. The main outcome was frequency of PASC diagnosed by (1) laboratory investigation, (2) radiologic pathology, and (3) clinical signs and symptoms. PASC were classified by organ system, ie, neurologic; cardiovascular; respiratory; digestive; dermatologic; and ear, nose, and throat as well as mental health, constitutional symptoms, and functional mobility. Findings From a total of 2100 studies identified, 57 studies with 250 351 survivors of COVID-19 met inclusion criteria. The mean (SD) age of survivors was 54.4 (8.9) years, 140 196 (56%) were male, and 197 777 (79%) were hospitalized during acute COVID-19. High-income countries contributed 45 studies (79%). The median (IQR) proportion of COVID-19 survivors experiencing at least 1 PASC was 54.0% (45.0%-69.0%; 13 studies) at 1 month (short-term), 55.0% (34.8%-65.5%; 38 studies) at 2 to 5 months (intermediate-term), and 54.0% (31.0%-67.0%; 9 studies) at 6 or more months (long-term). Most prevalent pulmonary sequelae, neurologic disorders, mental health disorders, functional mobility impairments, and general and constitutional symptoms were chest imaging abnormality (median [IQR], 62.2% [45.8%-76.5%]), difficulty concentrating (median [IQR], 23.8% [20.4%-25.9%]), generalized anxiety disorder (median [IQR], 29.6% [14.0%-44.0%]), general functional impairments (median [IQR], 44.0% [23.4%-62.6%]), and fatigue or muscle weakness (median [IQR], 37.5% [25.4%-54.5%]), respectively. Other frequently reported symptoms included cardiac, dermatologic, digestive, and ear, nose, and throat disorders. Conclusions and Relevance In this systematic review, more than half of COVID-19 survivors experienced PASC 6 months after recovery. The most common PASC involved functional mobility impairments, pulmonary abnormalities, and mental health disorders. These long-term PASC effects occur on a scale that could overwhelm existing health care capacity, particularly in low- and middle-income countries.

481 citations


Journal ArticleDOI
TL;DR: In conclusion, SDT-informed interventions positively affect indices of health; these effects are modest, heterogeneous, and partly due to increases in self-determined motivation and support from social agents.
Abstract: There are no literature reviews that have examined the impact of health-domain interventions, informed by self-determination theory (SDT), on SDT constructs and health indices. Our aim was to meta-analyse such interventions in the health promotion and disease management literatures. Studies were eligible if they used an experimental design, tested an intervention that was based on SDT, measured at least one SDT-based motivational construct, and at least one indicator of health behaviour, physical health, or psychological health. Seventy-three studies met these criteria and provided sufficient data for the purposes of the review. A random-effects meta-analytic model showed that SDT-based interventions produced small-to-medium changes in most SDT constructs at the end of the intervention period, and in health behaviours at the end of the intervention period and at the follow-up. Small positive changes in physical and psychological health outcomes were also observed at the end of the interventions. Increases in need support and autonomous motivation (but not controlled motivation or amotivation) were associated with positive changes in health behaviour. In conclusion, SDT-informed interventions positively affect indices of health; these effects are modest, heterogeneous, and partly due to increases in self-determined motivation and support from social agents.

289 citations


Journal ArticleDOI
TL;DR: This article examined the role of gold as a hedge or safe-haven asset in different phases of the COVID-19 pandemic crisis, corresponding to the timing of fiscal and monetary stimuli to support the weakened economy.

216 citations


Journal ArticleDOI
TL;DR: A one-size-fits-all approach to athlete sleep recommendations (eg, 7–9 hours/night) is unlikely ideal for health and performance, and an individualised approach that should consider the athlete’s perceived sleep needs is recommended.
Abstract: Elite athletes are particularly susceptible to sleep inadequacies, characterised by habitual short sleep (

165 citations


Journal ArticleDOI
TL;DR: The scorecard for osteoporosis in Europe (SCOPE) as discussed by the authors is a project of the International Osteopore Foundation (IOF) that seeks to raise awareness of osteoporeosis care in Europe.
Abstract: This scorecard summarises key indicators of the burden of osteoporosis and its management in the 27 member states of the European Union, as well as the UK and Switzerland. The resulting scorecard elements, assembled on a single sheet, provide a unique overview of osteoporosis in Europe. The scorecard for osteoporosis in Europe (SCOPE) is a project of the International Osteoporosis Foundation (IOF) that seeks to raise awareness of osteoporosis care in Europe. The aim of this project was to develop a scorecard and background documents to draw attention to gaps and inequalities in the provision of primary and secondary prevention of fractures due to osteoporosis. The SCOPE panel reviewed the information available on osteoporosis and the resulting fractures for each of the 27 countries of the European Union plus the UK and Switzerland (termed EU27+2). The information obtained covered four domains: background information (e.g. the burden of osteoporosis and fractures), policy framework, service provision and service uptake, e.g. the proportion of men and women at high risk that do not receive treatment (the treatment gap). There was a marked difference in fracture risk among the EU27+2 countries. Of concern was the marked heterogeneity in the policy framework, service provision and service uptake for osteoporotic fracture that bore little relation to the fracture burden. For example, despite the wide availability of treatments to prevent fractures, in the majority of the EU27+2, only a minority of patients at high risk receive treatment even after their first fracture. The elements of each domain in each country were scored and coded using a traffic light system (red, orange, green) and used to synthesise a scorecard. The resulting scorecard elements, assembled on a single sheet, provide a unique overview of osteoporosis in Europe. The scorecard enables healthcare professionals and policy makers to assess their country’s general approach to the disease and provide indicators to inform the future provision of healthcare.

156 citations


Journal ArticleDOI
TL;DR: This article examined different types of motivation in 344 samples (223,209 participants) as they relate to student performance, well-being, goal orientation, and persistence-related student outcomes.
Abstract: Student outcomes are influenced by different types of motivation that stem from external incentives, ego involvement, personal value, and intrinsic interest. The types of motivation described in self-determination theory each co-occur to different degrees and should lead to different consequences. The associations with outcomes are due in part to unique characteristics and in part to the degree of autonomy each entails. In the current meta-analysis, we examine these different types of motivation in 344 samples (223,209 participants) as they relate to 26 performance, well-being, goal orientation, and persistence-related student outcomes. Findings highlight that intrinsic motivation is related to student success and well-being, whereas personal value (identified regulation) is particularly highly related to persistence. Ego-involved motives (introjected regulation) were positively related to persistence and performance goals but also positively related with indicators of ill-being. Motivation driven by a desire to obtain rewards or avoid punishment (external regulation) was not associated with performance or persistence but was associated with decreased well-being. Finally, amotivation was related to poor outcomes. Relative weights analysis further estimates the degree to which motivation types uniquely predict outcomes, highlighting that identified regulation and intrinsic motivation are likely key factors for school adjustment.

135 citations


Journal ArticleDOI
TL;DR: Recent advances from human and animal research are outlined that provide converging evidence for functionally relevant effects of the intranasal oxytocin administration route, suggesting that direct nose-to-brain delivery underlies the behavioral effects of Oxytocin on social cognition and behavior.
Abstract: Reports on the modulatory role of the neuropeptide oxytocin on social cognition and behavior have steadily increased over the last two decades, stimulating considerable interest in its psychiatric application. Basic and clinical research in humans primarily employs intranasal application protocols. This approach assumes that intranasal administration increases oxytocin levels in the central nervous system via a direct nose-to-brain route, which in turn acts upon centrally-located oxytocin receptors to exert its behavioral effects. However, debates have emerged on whether intranasally administered oxytocin enters the brain via the nose-to-brain route and whether this route leads to functionally relevant increases in central oxytocin levels. In this review we outline recent advances from human and animal research that provide converging evidence for functionally relevant effects of the intranasal oxytocin administration route, suggesting that direct nose-to-brain delivery underlies the behavioral effects of oxytocin on social cognition and behavior. Moreover, advances in previously debated methodological issues, such as pre-registration, reproducibility, statistical power, interpretation of non-significant results, dosage, and sex differences are discussed and integrated with suggestions for the next steps in translating intranasal oxytocin into psychiatric applications.

123 citations


Journal ArticleDOI
TL;DR: The current state of self-care research is addressed and an agenda for future research based on the inaugural conference of the International Center for Self-Care Research is proposed, which will lead a collaborative program of research that addressesSelf-care knowledge gaps and improves outcomes.

99 citations


Journal ArticleDOI
TL;DR: The empirical results show that oil supply industries benefit from positive shocks to oil price risk in general, whereas oil user industries and financial industries react negatively to positive oil price shocks.

99 citations


Journal ArticleDOI
TL;DR: Autonomy-supportive teaching is the adoption of a student-focused attitude and an understanding interpersonal tone that enables the skillful enactment of seven autonomy-satisfying instructional practices as discussed by the authors.
Abstract: Autonomy-supportive teaching is the adoption of a student-focused attitude and an understanding interpersonal tone that enables the skillful enactment of seven autonomy-satisfying instructional beh...

Journal ArticleDOI
TL;DR: Diffusion MRI‐based tractography is the most commonly‐used technique when inferring the structural brain connectome, i.e., the comprehensive map of the connections in the brain.
Abstract: Diffusion MRI-based tractography is the most commonly-used technique when inferring the structural brain connectome, i.e., the comprehensive map of the connections in the brain. The utility of graph theory-a powerful mathematical approach for modeling complex network systems-for analyzing tractography-based connectomes brings important opportunities to interrogate connectome data, providing novel insights into the connectivity patterns and topological characteristics of brain structural networks. When applying this framework, however, there are challenges, particularly regarding methodological and biological plausibility. This article describes the challenges surrounding quantitative tractography and potential solutions. In addition, challenges related to the calculation of global network metrics based on graph theory are discussed.Evidence Level: 5Technical Efficacy: Stage 1.

Journal ArticleDOI
TL;DR: Collective behavior provides a framework for understanding how the actions and properties of groups emerge from the way individuals generate and share information as mentioned in this paper, and the study of collective behavior must rise to a crisis discipline just as medicine, conservation, and climate science have.
Abstract: Collective behavior provides a framework for understanding how the actions and properties of groups emerge from the way individuals generate and share information. In humans, information flows were initially shaped by natural selection yet are increasingly structured by emerging communication technologies. Our larger, more complex social networks now transfer high-fidelity information over vast distances at low cost. The digital age and the rise of social media have accelerated changes to our social systems, with poorly understood functional consequences. This gap in our knowledge represents a principal challenge to scientific progress, democracy, and actions to address global crises. We argue that the study of collective behavior must rise to a “crisis discipline” just as medicine, conservation, and climate science have, with a focus on providing actionable insight to policymakers and regulators for the stewardship of social systems.


Journal ArticleDOI
TL;DR: Self-Determination Theory (SDT) is a still rapidly expanding framework of basic and applied research, underpinned by a global network of scholars and practitioners as mentioned in this paper, which takes into account our attributes as persons, including our capacities for awareness and self-regulation, as well as vulnerabilities to defensiveness and control.
Abstract: Self-determination theory (SDT) is a still rapidly expanding framework of basic and applied research, underpinned by a global network of scholars and practitioners. Herein we focus on one feature of SDT that helps explain its continued growth --the fact that it is a truly human science that takes into consideration our attributes as persons, including our capacities for awareness and self-regulation, as well as vulnerabilities to defensiveness and control. Within SDT these human capacities are studied using diverse methods, and across all sub-disciplines of psychology. In this review we focus particularly on people’s capacity for autonomy as it applies to their individual functioning, interpersonal relationships, and societal interactions. If there is a core legacy to SDT it is one of representing a generative and philosophically coherent framework based on a convergent network of empirical evidence with relevance across domains and cultures, and to our basic experiences and concerns as humans.

Journal ArticleDOI
TL;DR: In this paper, a spatial decision support tool is developed to show where, how, and for whom urban nature promotes physical activity, to inform urban greening efforts and broader health assessments.
Abstract: Nature underpins human well-being in critical ways, especially in health. Nature provides pollination of nutritious crops, purification of drinking water, protection from floods, and climate security, among other well-studied health benefits. A crucial, yet challenging, research frontier is clarifying how nature promotes physical activity for its many mental and physical health benefits, particularly in densely populated cities with scarce and dwindling access to nature. Here we frame this frontier by conceptually developing a spatial decision-support tool that shows where, how, and for whom urban nature promotes physical activity, to inform urban greening efforts and broader health assessments. We synthesize what is known, present a model framework, and detail the model steps and data needs that can yield generalizable spatial models and an effective tool for assessing the urban nature-physical activity relationship. Current knowledge supports an initial model that can distinguish broad trends and enrich urban planning, spatial policy, and public health decisions. New, iterative research and application will reveal the importance of different types of urban nature, the different subpopulations who will benefit from it, and nature's potential contribution to creating more equitable, green, livable cities with active inhabitants.

Journal ArticleDOI
TL;DR: A meta-analytical review of the literature on achievement emotions with a focus on activity-related emotions including enjoyment, anger, frustration, and boredom, and their links to educational outcomes is presented in this paper.
Abstract: Achievement emotions are emotions linked to academic, work, or sports achievement activities (activity emotions) and their success and failure outcomes (outcome emotions). Recent evidence suggests that achievement emotions are linked to motivational, self-regulatory, and cognitive processes that are crucial for academic success. Despite the importance of these emotions, syntheses of empirical findings investigating their relation with student achievement are scarce. We broadly review the literature on achievement emotions with a focus on activity-related emotions including enjoyment, anger, frustration, and boredom, and their links to educational outcomes with two specific aims: to aggregate all studies and determine how strongly related those emotions are to academic performance, and to examine moderators of those effects. A meta-analytical review was conducted using a systematic database of 68 studies. The 68 studies included 57 independent samples for enjoyment (N = 31,868), 25 for anger (N = 11,153), 9 for frustration (N = 1418), and 66 for boredom (N = 28,410). Results indicated a positive relation between enjoyment of learning and academic performance (ρ = .27), whereas the relations were negative for both anger (ρ = − .35) and boredom (ρ = − .25). For frustration, the relation with performance was near zero (ρ = − .02). Moderator tests revealed that relations of activity emotions with academic performance are stronger when (a) students are in secondary school compared with both primary school and college, and (b) the emotions are measured by the Achievement Emotions Questionnaires – Mathematics (AEQ-M). Theoretical and practical implications are discussed.

Journal ArticleDOI
TL;DR: In this article, the authors systematically reviewed the effects of video on learning in higher education and found that video is beneficial for online learning in many universities around the world, often relying on asynchronous multimedia.
Abstract: Universities around the world are incorporating online learning, often relying on videos (asynchronous multimedia). We systematically reviewed the effects of video on learning in higher education. ...

Journal ArticleDOI
TL;DR: An expert group of experts in applied sports nutrition research as well as practitioners working with elite football clubs and national associations/federations are gathered to issue an expert statement on a range of topics relevant to elite football nutrition.
Abstract: Football is a global game which is constantly evolving, showing substantial increases in physical and technical demands. Nutrition plays a valuable integrated role in optimising performance of elite players during training and match-play, and maintaining their overall health throughout the season. An evidence-based approach to nutrition emphasising, a 'food first' philosophy (ie, food over supplements), is fundamental to ensure effective player support. This requires relevant scientific evidence to be applied according to the constraints of what is practical and feasible in the football setting. The science underpinning sports nutrition is evolving fast, and practitioners must be alert to new developments. In response to these developments, the Union of European Football Associations (UEFA) has gathered experts in applied sports nutrition research as well as practitioners working with elite football clubs and national associations/federations to issue an expert statement on a range of topics relevant to elite football nutrition: (1) match day nutrition, (2) training day nutrition, (3) body composition, (4) stressful environments and travel, (5) cultural diversity and dietary considerations, (6) dietary supplements, (7) rehabilitation, (8) referees and (9) junior high-level players. The expert group provide a narrative synthesis of the scientific background relating to these topics based on their knowledge and experience of the scientific research literature, as well as practical experience of applying knowledge within an elite sports setting. Our intention is to provide readers with content to help drive their own practical recommendations. In addition, to provide guidance to applied researchers where to focus future efforts.

Journal ArticleDOI
TL;DR: It is suggested that, while the valence–dominance model generalizes very well across regions when dimensions are forced to be orthogonal, regional differences are revealed when the authors use different extraction methods and correlate and rotate the dimension reduction solution.
Abstract: Over the past 10 years, Oosterhof and Todorov’s valence–dominance model has emerged as the most prominent account of how people evaluate faces on social dimensions. In this model, two dimensions (valence and dominance) underpin social judgements of faces. Because this model has primarily been developed and tested in Western regions, it is unclear whether these findings apply to other regions. We addressed this question by replicating Oosterhof and Todorov’s methodology across 11 world regions, 41 countries and 11,570 participants. When we used Oosterhof and Todorov’s original analysis strategy, the valence–dominance model generalized across regions. When we used an alternative methodology to allow for correlated dimensions, we observed much less generalization. Collectively, these results suggest that, while the valence–dominance model generalizes very well across regions when dimensions are forced to be orthogonal, regional differences are revealed when we use different extraction methods and correlate and rotate the dimension reduction solution.

Journal ArticleDOI
TL;DR: Investigations of various models have failed to find a benefit over dietary approaches based on current sports nutrition guidelines, and keto‐adaptation may impair the muscle's ability to use glycogen for oxidative fates, compromising the use of a more economical energy source when the oxygen supply becomes limiting and the performance of higher‐intensity exercise.
Abstract: The ability of ketogenic low-carbohydrate (CHO) high-fat (K-LCHF) diets to enhance muscle fat oxidation has led to claims that it is the 'future of elite endurance sport'. There is robust evidence that substantial increases in fat oxidation occur, even in elite athletes, within 3-4 weeks and possibly 5-10 days of adherence to a K-LCHF diet. Retooling of the muscle can double exercise fat use to ∼1.5 g min-1 , with the intensity of maximal rates of oxidation shifting from ∼45% to ∼70% of maximal aerobic capacity. Reciprocal reductions in CHO oxidation during exercise are clear, but current evidence to support the hypothesis of the normalization of muscle glycogen content with longer-term adaptation is weak. Importantly, keto-adaptation may impair the muscle's ability to use glycogen for oxidative fates, compromising the use of a more economical energy source when the oxygen supply becomes limiting and, thus, the performance of higher-intensity exercise (>80% maximal aerobic capacity). Even with moderate intensity exercise, individual responsiveness to K-LCHF is varied, with extremes at both ends of the performance spectrum. Periodisation of K-LCHF with high CHO availability might offer opportunities to restore capacity for higher-intensity exercise, but investigations of various models have failed to find a benefit over dietary approaches based on current sports nutrition guidelines. Endurance athletes who are contemplating the use of K-LCHF should undertake an audit of event characteristics and personal experiences to balance the risk of impaired performance of higher-intensity exercise with the likelihood of an unavoidable depletion of carbohydrate stores.

Journal ArticleDOI
TL;DR: A micro-traffic flow model for EVs by considering their unique acceleration/deceleration characteristics is proposed to represent and simulate the movements of EVs in traffic flow, especially in congested traffic and shows that the proposed EV behavior model outperforms traditional behavior models for both timid and aggressive drivers.

Journal ArticleDOI
Jad Adrian Washif, Abdulaziz Farooq1, Isabel Krug2, David B. Pyne3, Evert Verhagen4, Lee Taylor5, Del P. Wong6, Iñigo Mujika7, Cristina Cortis8, Monoem Haddad9, Omid Ahmadian, Mahmood Al Jufaili10, Ramzi Al-Horani11, Abdulla Saeed Al-Mohannadi, Asma Aloui, Achraf Ammar12, Fitim Arifi, Abdul Rashid Aziz, Mikhail Batuev13, Christopher Martyn Beaven14, Ralph Beneke15, Arben Bici16, Pallawi Bishnoi, Lone Bogwasi, Daniel Bok17, Omar Boukhris18, Daniel Boullosa19, Nicola Bragazzi20, João Brito, Roxana Paola Palacios Cartagena21, Anis Chaouachi, Stephen S. Cheung22, Hamdi Chtourou18, Germina Cosma23, Tadej Debevec24, Matthew D. DeLang, A Dellal25, Gürhan Dönmez26, Tarak Driss27, Juan David Peña Duque, Cristiano Eirale, Mohamed Elloumi28, Carl Foster29, Emerson Franchini30, Andrea Fusco8, Olivier Galy31, Paul B. Gastin32, Nicholas Gill14, Olivier Girard33, Cvita Gregov17, Shona L. Halson34, Omar Hammouda27, Ivana Hanzlíková14, Bahar Hassanmirzaei35, Thomas A. Haugen, Kim Hébert-Losier14, Hussein Muñoz Helú, Tomás Herrera-Valenzuela36, Florentina J. Hettinga13, Louis Holtzhausen, Olivier Hue, Antonio Dello Iacono37, Johanna K. Ihalainen38, Carl James, Dina Christina Janse van Rensburg39, Saju Joseph, Karim Kamoun, Mehdi Khaled, Karim Khalladi1, Kwang Joon Kim40, Lian-Yee Kok41, Lewis MacMillan, Leonardo Jose Mataruna-Dos-Santos42, Ryo Matsunaga, Shpresa Memishi, Grégoire P. Millet43, Imen Moussa-Chamari9, Danladi I. Musa44, Hoang Minh Thuan Nguyen, Pantelis T. Nikolaidis45, Adam Owen46, Johnny Padulo47, Jeffrey Pagaduan48, Nirmala Kanthi Panagodage Perera49, Jorge Pérez-Gómez21, Lervasen Pillay39, Arporn Popa50, Avishkar Pudasaini, Alireza Rabbani51, Tandiyo Rahayu52, Mohamed Romdhani, Paul A. Salamh53, Abu Sufian Sarkar, Andy Schillinger, Stephen Seiler54, Heny Setyawati52, Navina Shrestha55, Fatona Suraya52, Montassar Tabben1, Khaled Trabelsi18, Axel Urhausen56, Maarit Valtonen, Johanna Weber, Rodney Whiteley, Adel Zrane57, Yacine Zerguini, Piotr Zmijewski58, Øyvind Sandbakk59, Helmi Ben Saad, Karim Chamari 
Qatar Airways1, University of Melbourne2, University of Canberra3, VU University Amsterdam4, Loughborough University5, Open University of Hong Kong6, University of the Basque Country7, University of Cassino8, Qatar University9, Sultan Qaboos University10, Yarmouk University11, Otto-von-Guericke University Magdeburg12, Northumbria University13, University of Waikato14, University of Marburg15, University of Tirana16, University of Zagreb17, University of Sfax18, Federal University of Mato Grosso do Sul19, John Jay College of Criminal Justice20, University of Extremadura21, Brock University22, University of Craiova23, Ljubljana University Medical Centre24, Claude Bernard University Lyon 125, Hacettepe University26, Paris West University Nanterre La Défense27, Prince Sultan University28, University of Wisconsin–La Crosse29, University of São Paulo30, University of New Caledonia31, La Trobe University32, University of Western Australia33, Australian Catholic University34, Tehran University of Medical Sciences35, University of Erlangen-Nuremberg36, University of the West of Scotland37, University of Jyväskylä38, University of Pretoria39, Yonsei University40, Tunku Abdul Rahman University College41, University Hospital Coventry42, University of Lausanne43, Kogi State University44, University of the West45, University of Lyon46, University of Milan47, University of Tasmania48, Australian Institute of Sport49, Mahasarakham University50, University of Isfahan51, State University of Semarang52, University of Indianapolis53, University of Agder54, VU University Medical Center55, Centre Hospitalier de Luxembourg56, University of Sousse57, Józef Piłsudski University of Physical Education in Warsaw58, Norwegian University of Science and Technology59
TL;DR: In this paper, the authors explore the training-related knowledge, beliefs, and practices of athletes and the influence of lockdowns in response to the coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirirus 2 (SARS-CoV-2).
Abstract: Our objective was to explore the training-related knowledge, beliefs, and practices of athletes and the influence of lockdowns in response to the coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Athletes (n = 12,526, comprising 13% world class, 21% international, 36% national, 24% state, and 6% recreational) completed an online survey that was available from 17 May to 5 July 2020 and explored their training behaviors (training knowledge, beliefs/attitudes, and practices), including specific questions on their training intensity, frequency, and session duration before and during lockdown (March–June 2020). Overall, 85% of athletes wanted to “maintain training,” and 79% disagreed with the statement that it is “okay to not train during lockdown,” with a greater prevalence for both in higher-level athletes. In total, 60% of athletes considered “coaching by correspondence (remote coaching)” to be sufficient (highest amongst world-class athletes). During lockdown, < 40% were able to maintain sport-specific training (e.g., long endurance [39%], interval training [35%], weightlifting [33%], plyometric exercise [30%]) at pre-lockdown levels (higher among world-class, international, and national athletes), with most (83%) training for “general fitness and health maintenance” during lockdown. Athletes trained alone (80%) and focused on bodyweight (65%) and cardiovascular (59%) exercise/training during lockdown. Compared with before lockdown, most athletes reported reduced training frequency (from between five and seven sessions per week to four or fewer), shorter training sessions (from ≥ 60 to < 60 min), and lower sport-specific intensity (~ 38% reduction), irrespective of athlete classification. COVID-19-related lockdowns saw marked reductions in athletic training specificity, intensity, frequency, and duration, with notable within-sample differences (by athlete classification). Higher classification athletes had the strongest desire to “maintain” training and the greatest opposition to “not training” during lockdowns. These higher classification athletes retained training specificity to a greater degree than others, probably because of preferential access to limited training resources. More higher classification athletes considered “coaching by correspondence” as sufficient than did lower classification athletes. These lockdown-mediated changes in training were not conducive to maintenance or progression of athletes’ physical capacities and were also likely detrimental to athletes’ mental health. These data can be used by policy makers, athletes, and their multidisciplinary teams to modulate their practice, with a degree of individualization, in the current and continued pandemic-related scenario. Furthermore, the data may drive training-related educational resources for athletes and their multidisciplinary teams. Such upskilling would provide athletes with evidence to inform their training modifications in response to germane situations (e.g., COVID related, injury, and illness).

Journal ArticleDOI
TL;DR: This article conducted a systematic search in four databases, included 34 studies, and thematically analyzed data from all included studies, finding that low relatedness and competence satisfaction were associated with negative affect and reduced participation. Need satisfaction was associated with positive affect and increased participation.

Journal ArticleDOI
Ke Wang1, Amit Goldenberg1, Charles Dorison2, Jeremy K. Miller3  +470 moreInstitutions (232)
TL;DR: In this paper, the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation, was tested to reduce negative emotions and increase positive emotions.
Abstract: The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation. Participants from 87 countries and regions (n = 21,644) were randomly assigned to one of two brief reappraisal interventions (reconstrual or repurposing) or one of two control conditions (active or passive). Results revealed that both reappraisal interventions (vesus both control conditions) consistently reduced negative emotions and increased positive emotions across different measures. Reconstrual and repurposing interventions had similar effects. Importantly, planned exploratory analyses indicated that reappraisal interventions did not reduce intentions to practice preventive health behaviours. The findings demonstrate the viability of creating scalable, low-cost interventions for use around the world.

Journal ArticleDOI
05 Feb 2021
TL;DR: Teacher noticing has become increasingly acknowledged as a fundamental aspect of teacher professional competence as mentioned in this paper, and the field has examined systematically the extent to which research has leveraged the affordances of digital video technologies, and whether scholars have employed different research methods to answer questions that are critical to teacher educators.
Abstract: Teacher noticing has become increasingly acknowledged as a fundamental aspect of teacher professional competence. Teacher education scholars have examined how the development of noticing might be supported both in initial teacher education and in professional development. In mathematics teacher education, several studies have explored the use of video as a supporting tool for teacher noticing. It remains unclear how this body of work builds on the various theoretical perspectives of noticing prevalent in the literature, thus broadening our understanding of noticing. Furthermore, the field has not examined systematically the extent to which research has leveraged the affordances of digital video technologies, and whether scholars have employed different research methods to answer questions that are critical to teacher educators. This survey paper reviews studies published in the last two decades on programs centered on mathematics teacher noticing that used video as a supporting tool for teacher learning. Thirty-five peer-reviewed papers written in English were identified and coded along three dimensions: (1) theoretical perspectives; (2) use of video technologies; and (3) research questions and methods. This review summarizes important findings and highlights several directions for future research. Most studies involved pre-service teachers, and only a few centered on in-service teachers. Developers of the large majority of programs took a cognitive psychological perspective and focused on the attending/perceiving and interpreting/reasoning facets of noticing. Few studies used video-based software and few studies used grouping, and even fewer used randomized grouping. Evidence of program effects on responding and decision making, and on instructional practice, is limited and should be extended in the future.

Journal ArticleDOI
TL;DR: Adaptation to a low carbohydrate high fat diet in elite athletes increased exercise fat oxidation to rates previously observed with medium (3–4 weeks) or chronic (>12 months) adherence to this diet, with metabolic changes being washed out in a similar time frame.
Abstract: Key points: Brief (5–6 days) adaptation to a low carbohydrate high fat diet in elite athletes increased exercise fat oxidation to rates previously observed with medium (3–4 weeks) or chronic (>12 months) adherence to this diet, with metabolic changes being washed out in a similar time frame. Increased fat utilisation during exercise was associated with a 5–8% increase in oxygen cost at speeds related to Olympic Programme races. Acute restoration of endogenous carbohydrate (CHO) availability (24 h high CHO diet, pre-race CHO) only partially restored substrate utilisation during a race warm-up. Fat oxidation continued to be elevated above baseline values although it was lower than achieved by 5–6 days’ keto adaptation; CHO oxidation only reached 61% and 78% of values previously seen at exercise intensities related to race events. Acute restoration of CHO availability failed to overturn the impairment of high-intensity endurance performance previously associated with low carbohydrate high fat adaptation, potentially due to the blunted capacity for CHO oxidation. Abstract: We investigated substrate utilisation during exercise after brief (5–6 days) adaptation to a ketogenic low-carbohydrate (CHO), high-fat (LCHF) diet and similar washout period. Thirteen world-class male race walkers completed economy testing, 25 km training and a 10,000 m race (Baseline), with high CHO availability (HCHO), repeating this (Adaptation) after 5–6 days’ LCHF (n = 7; CHO: 200%) increases in exercise fat oxidation occurred in the LCHF Adaptation economy and 25 km tests, reaching mean rates of ∼1.43 g min−1. However, relative (Formula presented.) (ml min−1 kg−1) was higher (P < 0.0001), by ∼8% and 5% at speeds related to 50 km and 20 km events. During Adaptation race warm-up in the LCHF group, rates of fat and CHO oxidation at these speeds were decreased and increased, respectively (P < 0.001), compared with the previous day, but were not restored to Baseline values. Performance changes differed between groups (P = 0.009), with all HCHO athletes improving in the Adaptation race (5.7 (5.6)%), while 6/7 LCHF athletes were slower (2.2 (3.4)%). Substrate utilisation returned to Baseline values after 5–6 days of HCHO diet. In summary, robust changes in exercise substrate use occurred in 5–6 days of extreme changes in CHO intake. However, adaptation to a LCHF diet plus acute restoration of endogenous CHO availability failed to restore high-intensity endurance performance, with CHO oxidation rates remaining blunted. © 2020 The Authors. The Journal of Physiology published by John Wiley & Sons Ltd on behalf of The Physiological Society

Journal ArticleDOI
TL;DR: The Task Force agreed that contextual behavioral science research should be multilevel, process-based, multidimensional, prosocial, and pragmatic, and provided 33 recommendations to the CBS community arranged across these characteristics.
Abstract: Throughout its history the strategy and tactics of contextual behavioral science (CBS) research have had distinctive features as compared to traditional behavioral science approaches. Continued progress in CBS research can be facilitated by greater clarity about how its strategy and tactics can be brought to bear on current challenges. The present white paper is the result of a 2 1/2-year long process designed to foster consensus among representative producers and consumers of CBS research about the best strategic pathway forward. The Task Force agreed that CBS research should be multilevel, process-based, multidimensional, prosocial, and pragmatic, and provided 33 recommendations to the CBS community arranged across these characteristics. In effect, this report provides a detailed research agenda designed to maximize the impact of CBS as a field. Scientists and practitioners are encouraged to mount this ambitious agenda.

Journal ArticleDOI
TL;DR: Significant positive group–time interactions were found for the primary outcomes of depression and anxiety literacy, intentions to seek help from formal sources, confidence to seek mental health information, and resilience.
Abstract: Purpose In this study, we tested the effectiveness of a multicomponent sports-based program aimed at promoting early intervention, help seeking, and resilience among a sample of adolescent male sport participants. Methods The Ahead of the Game program comprised four intervention components and a messaging campaign. Two components targeted mental health literacy, intentions to seek and provide help, and resilience among adolescent boys. A mental health literacy program for parents and a coach education program to assist in the support of athletes’ psychological needs were also included. We evaluated the program using a nonrandomized controlled trial matching two regional communities. In total, 350 sport participants (mean, 14.53 yr) were included in an intervention group, whereas 466 (mean, 14.66 yr) received usual practice in a matched control community. One hundred and eighty parents or caregivers and eight coaches also participated in the intervention components. Between-group mean differences on the primary and secondary outcomes were analyzed using linear mixed models, adjusted for clustering at club level, participant age, and socioeconomic status. Results Significant positive group–time interactions were found for the primary outcomes of depression and anxiety literacy, intentions to seek help from formal sources, confidence to seek mental health information, and resilience. We also found a significant positive group–time interaction for the secondary outcome of well-being. There were no group–time interactions for social distance (stigma), intentions to seek help from informal sources, implicit beliefs about adversity, perceived familial support, or psychological distress. Conclusions Given the high rates of sport participation worldwide and the increasing focus on mental health in this domain, translation and dissemination of the program may be warranted after replication.

Journal ArticleDOI
TL;DR: Major deficits found in self-care interventions included a lack of attention to the psychological consequences of chronic illness, technology and behavior change techniques were rarely used, few studies focused on helping patients manage signs and symptoms, and the interventions were rarely innovative.