Publications by authors named "Stewart Vella"

Background: While evidence consistently demonstrates that physical activity is beneficial to mental health, it remains relatively unknown how physical activity benefits mental health, and which factors influence the effect of physical activity on mental health. This understanding could vastly increase our capacity to design, recommend, and prescribe physical activity in more optimal ways. The purpose of this study was to systematically review and synthesise evidence of all mediators and moderators of the relationship between physical activity and mental health.

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Article Synopsis
  • - Regular participation in sports is beneficial for physical and mental health, but some sports environments may contribute to mental health issues among participants.
  • - Elite sports organizations have guidelines for psychological safety, but these do not always apply to recreational sports, leading to a demand for specific mental health guidelines in that context.
  • - A study using the Delphi technique gathered insights from 21 experts to identify key areas for mental health guidelines in community sports, resulting in 13 statements focused on promoting positive mental health and clarifying the roles of community sport organizations and governance.
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Objectives: Mothers of young children are at-risk for low physical activity. Organised team sport provides additional social and mental health benefits above that of physical activity. To better understand engagement in team sport, this study aimed to apply the theory of planned behaviour, with the addition of maternal identity and social support.

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Elite sports contexts are highly pressurised and frequently enforce a win-at-all-costs approach. This narrow focus on performance outcomes can potentially contribute in negative ways to the mental health of those within these environments. In this Current Opinion paper, we propose a model that outlines how key elements contributing to psychologically safe or unsafe environments may contribute to better or worse mental health outcomes, respectively.

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Sports settings have been identified as an ideal place to conduct complex multi-level health-promotion interventions, with the potential to engage a broad audience. Whilst the benefits of delivering health-promotion interventions in sports settings are well documented, such interventions' real-world implementation and success must be better understood. Process evaluations can be conducted to provide information related to an intervention's fidelity, replication, scaling, adoption, and the underlying mechanisms driving outcomes.

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Positive youth development is a popular guiding framework for studying the psychosocial development of youth. In sport research, for more than two decades, this framework has enhanced our understanding of the mechanisms involved in successful shifts from youth to adulthood. Nonetheless, scholars have recently taken a more critical stance on the positive youth development framework by elucidating some of its shortcomings.

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Objectives: This consensus statement from Sports Medicine Australia and the Australian Psychological Society aims to provide guidance to practitioners on the ways that physical activity can be promoted to maximise benefits to mental health.

Methods: Following the Clinical Consensus Statement protocol, an expert group comprised of eight members with expertise in physical activity and mental health articulated recommendations regarding five physical activity contextual factors: type, physical environment, delivery, domain, and social environment.

Results: To optimise the mental health benefits of physical activity, we recommend: i) activity selection be guided by factors associated with adherence and enjoyment as opposed to any specific type (type); ii) facilitators (i.

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Widespread adolescent involvement in organized sport means that sport contexts are well-suited to 'actively' integrate prevention programs that may promote population-level change. This mixed methods study aimed to evaluate the feasibility and acceptability of a peer-based mental health literacy intervention. The intervention (i.

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Organised sports are the most common settings for sports participation. Despite a range of documented benefits from participation, these positive outcomes are not always guaranteed. Emotional distress from pressure and injuries can mean some participants experience negative outcomes.

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The focus on mental health outcomes in sport, including the ways in which mental health can be protected and promoted, has become a major international priority for all sports, including the recreational sports system. The aim of this paper is to outline a systems theory of mental health care and promotion that is specific to needs of the recreational sport system so that context-specific, effective policies, interventions, and models of care can be articulated and tested. Based on general systems theory, we offer a preliminary theory and accompanying postulates that outline the general principles that explain mental health in recreational sports.

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It is important to explore the types of conceptualisations and causes presented in online mental health promotion given the implications that these presentations may have on mental health stigma. This study systematically reviewed 92 Australian webpages focused on either mental health, mental illness, depression, or schizophrenia, to explore the types of conceptualisations and aetiologies presented. A minority of mental health and mental illness webpages (n = 8, 8.

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The SMART acronym (e.g., Specific, Measurable, Achievable, Realistic, Timebound) is a highly prominent strategy for setting physical activity goals.

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Background: This study aimed to investigate prosocial behaviour-those behaviours that benefit others or enhance relationships with others-as a mediator of the associations between green space quality and child health-related outcomes (physical activity, mental health, and health-related quality of life (HRQOL)).

Methods: This study involved data from 4983 children with 10-year follow-up (2004-2014) retrieved from the Longitudinal Study of Australian Children. Green space quality (the exposure), prosocial behaviour (the candidate mediator), and child health-related outcomes were assessed biennially based on caregiver reports.

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Most research investigating the effect of continuum beliefs on stigma has used weak manipulations which may contribute to mixed findings within the experimental literature. There is also a lack of research into how continuum belief manipulations may impact help-seeking and help-provision. This study used an online manipulation of continuum and categorical beliefs about schizophrenia to examine the subsequent impacts on stigma, help-seeking, and help-provision.

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Introduction: Adolescent males are at increased risk of mental illness and are reluctant to engage in treatment. This study aims to identify subgroups of help-seeking intentions among a sample of Australian male adolescents.

Methods: A sample of 1038 male adolescent sport participants in Australia (age M = 14.

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Background: This study evaluates the Ahead Of The Game (AOTG) mental health promotion strategy for adolescent males relative to usual practice in team based sporting club community settings, allowing for joint incremental effects across 13 dimensions and 5 domains alongside intervention implementation costs.

Methods: Analysis is undertaken between matched communities with difference in differences analysis of joint multiple pre-post effect changes alongside implementation costs employing radar plots in cost-disutility space. A robust bootstrapping method allowed including all observed change in effect data from 343 AOTG and 273 control arm participants across 13 effect dimensions.

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This research sought to test whether sport participation relates to the development of trait extraversion across three life phases. Sport participation and extraversion were measured in children aged 10.5 ± 0.

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Youth sport offers physical and psychosocial components that may be beneficial for adolescents' mental health, but the prospective directionality between sport participation and mental health has not been clearly established. The current study examined longitudinal associations between sport participation (individual and team sport) and mental health indices (depressive symptoms, anxiety symptoms, emotional symptoms, hyperactivity symptoms, conduct problems, peer problems, and prosocial behavior) across adolescence (ages 12-17) in a nationally representative Australian sample of 3956 participants at T1 (M = 12.41 years, SD = 0.

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Executive functions and psychosocial health during childhood are positively associated with health and developmental outcomes into adulthood. Electronic media use has been reported to adversely affect health and development in children; however, what remains unclear is whether contemporary media behaviors, such as electronic application (app) use, exerts similar effects on health and development. We investigated the associations of electronic media use (program viewing and app use) with cognitive and psychosocial development in preschoolers.

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Background: Current evidence from studies on green space and child prosocial behaviour suggests a paucity of studies investigating the plausible role of green space quality in shaping the development of prosocial behaviour. This study aimed to examine longitudinal association between green space quality and prosocial behaviour among children.

Methods: We analysed 10-year longitudinal data (2004-2014) from the Longitudinal Study of Australian Children (LSAC), a nationally representative cohort study.

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To examine the longitudinal associations of objectively measured physical activity and modified organized sport participation with executive functions and psychological health in preschoolers. One hundred and eighty-five preschool children, mean age 4.2 ± 7.

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Background: The aim of this study was to examine the efficacy of an embedded after-school intervention, on promoting physical activity and academic achievement in primary-school-aged children.

Methods: This 6-month, 2-arm cluster randomized controlled trial involved 4 after-school centers. Two centers were randomly assigned to the intervention, which involved training the center staff on and implementing structured physical activity (team sports and physical activity sessions for 75 min) and academic enrichment activities (45 min).

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