Perturbações do comportamento alimentar em adolescentes e estilos de vida, sua relação com a percepção do auto-conceito e imagem corporal

Tendo como ponto de partida, o quadro conceptual esboçado a partir dos estudos revistos, procuramos nesta investigação analisar as perturbações do comportamento alimentar em adolescentes/estilos de vida, sua relação com a percepção do auto-conceito e imagem corporal. A amostra foi constituída por 405 alunos (232 do género feminino e 173 do género masculino) do ensino secundário (11º e 12º anos), com idades compreendidas entre os 15 e os 20 anos. Os participantes preencheram um questionário, dividido em 3 partes: sócio-demográfico/estilos de vida, escala sobre a percepção da imagem corporal – Relationship Between Body Image Percent Body Fat Among College Male Varsity Athletes and Non-athletes (Huddy, D. C.; Nieman, D. C. e Johnson, R. L. 1993 ) e escala da percepção do auto-conceito – The self-perception profile for college (Newman & Harter 1986). Neste estudo tivemos como principal objectivo, analisar as perturbações do comportamento alimentar/Índice de Massa Corporal a partir do impacto das variáveis psicológicas como: percepção do auto-conceito, imagem corporal, ambiente familiar, estilos de vida, numa amostra de adolescentes. A determinação do IMC mostra que a maioria dos adolescentes apresenta peso normal (71%). Apenas 14,3% apresentam excesso de peso, 3,2% tem obesidade moderada, 0,7%, obesidade grave e 0,5% obesidade mórbida. A avaliação baseada nas correlações entre as variáveis e entre as variáveis e as sub-escalas, revelaram que os adolescentes do género masculino apresentam uma média mais elevada a nível da percepção do auto-conceito do que o género feminino. Também uma percepção mais desfavorável do auto-conceito, está associada a um elevado índice de massa corporal. O grau de satisfação com o ambiente familiar revela uma mais favorável percepção do auto-conceito. Quanto à relação da percepção que os adolescentes têm relativamente ao auto-conceito e comportamentos afectos aos estilos de vida, há a ressaltar, que uma maior actividade física, está associada, a uma percepção menos favorável do auto-conceito. Os resultados evidenciam uma ausência de relações significativas entre a imagem corporal, o género e a idade. Também no nosso estudo não foi confirmada a hipótese de que a imagem corporal está correlacionada com o IMC. Em relação aos hábitos alimentares e IMC não foi possível comprovar esta hipótese, mas permitiu-nos conhecer alguns comportamentos alimentares.

Prédictions sportives chez des athlètes de basketball: perception d’efficacité personnelle et illusion de contrôle

Les athlètes sont nombreux à parier sur les sports et leurs connaissances en sport pourraient les amener à s’y sentir compétents. Les théories similaires de la perception d’efficacité personnelle (PEP) et de l’illusion de contrôle offrent des pistes de réflexion sur cette impression de compétence. Comme la PEP peut se généraliser entre tâches similaires, la PEP des athlètes à une tâche sportive pourrait se généraliser, sous forme d’illusions de contrôle, vers la PEP à des prédictions sportives. L’objectif principal du mémoire est de vérifier si la PEP à une tâche de basketball se généralise vers des prédictions. Un objectif secondaire est de vérifier le lien entre la PEP aux prédictions sportives et l’illusion de contrôle. Vingt-trois basketteurs de niveau collégial ou universitaire sont répartis aléatoirement en deux conditions : PEP augmentée et diminuée. Lors d’une tâche de basketball, les athlètes doivent statuer le nombre de paniers qu’ils croient réussir et tenter de l’atteindre. Pour manipuler la PEP, il est mentionné aux athlètes qu’ils ont deux minutes pour accomplir la tâche, mais ont plus ou moins 15 % de ce temps. Ils effectuent ensuite des prédictions sur le basketball et sur un autre sport. Les résultats révèlent l’augmentation et la diminution significative de la PEP à la tâche de basketball, sans généralisation aux prédictions, puisque les athlètes des deux conditions rapportent une PEP élevée aux prédictions sur le basketball et modérée sur l’autre sport. Aussi, le lien PEP − illusion de contrôle n’est pas significatif. Les résultats illustrent toutefois que les athlètes présentent une PEP et une illusion de contrôle plus élevées aux prédictions sur le basketball que sur l’autre sport. Il semble que les basketteurs se sentent plus compétents pour prédire des événements de basketball qu’un autre sport, et ce, indépendamment de leur PEP à une tâche motrice de basketball.

A pureza perdida do desporto : futebol no Estado Novo

Tese de doutoramento, Sociologia (Teorias e Métodos de Sociologia), Universidade de Lisboa, Instituto de Ciências Sociais, 2014

Influence of Different Performance Levels on Pacing Strategy During the Women's World Championship Marathon Race.

Purpose To analyse pacing strategies displayed by athletes achieving differing levels of performance during an elite level marathon race. Methods Competitors in the 2009 IAAF Women’s Marathon Championship were split into Groups 1, 2, 3, and 4 comprising the first, second, third, and fourth 25% of finishers respectively. Final, intermediate, and personal best (PB) times of finishers were converted to mean speeds, and relative speed (% of PB speed) was calculated for intermediate segments. Results Mean PB speed decreased from Group 1 to 4 and speed maintained in the race was 98.5 + 1.8%, 97.4 + 3.2%, 95.0 + 3.1% and 92.4 + 4.4% of PB speed for Groups 1-4 respectively. Group 1 was fastest in all segments and differences in speed between groups increased throughout the race. Group 1 ran at lower relative speeds than other groups for the first two 5 km segments, but higher relative speeds after 35km. Significant differences (P<0.01) in the percentage of PB speed maintained were observed between Groups 1 and 4, and 2 and 4 in all segments after 20 km, and Groups 3 and 4 from 20-25 km and 30-35 km. Conclusions Group 1 athletes achieved superior finishing times relative to their PB than athletes in other Groups who selected unsustainable initial speeds resulting in subsequent significant losses of speed. It is suggested that psychological factors specific to a major competitive event influenced decision making by athletes and poor decisions resulted in final performances inferior to those expected based on PB times.

Risk Perception Influences Athletic Pacing Strategy.

PURPOSE: To examine risk-taking and risk-perception associations with perceived exertion, pacing and performance in athletes. METHODS: Two experiments were conducted in which risk-perception was assessed using the domain-specific risk-taking (DOSPERT) scale in 20 novice cyclists (Experiment 1) and 32 experienced ultra-marathon runners (Experiment 2). In Experiment 1, participants predicted their pace and then performed a 5 km maximum effort cycling time-trial on a calibrated KingCycle mounted bicycle. Split-times and perceived exertion were recorded every kilometer. In experiment 2, each participant predicted their split times before running a 100 km ultra-marathon. Split-times and perceived exertion were recorded at 7 check-points. In both experiments, higher and lower risk-perception groups were created using median split of DOSPERT scores. RESULTS: In experiment 1, pace during the first km was faster among lower compared to higher risk-perceivers, t(18)=2.0 P=0.03, and faster among higher compared lower risk-takers, t(18)=2.2 P=0.02. Actual pace was slower than predicted pace during the first km in both the higher risk perceivers, t(9)=-4.2 P=0.001, and lower risk-perceivers, t(9)=-1.8 P=0.049. In experiment 2, pace during the first 36 km was faster among lower compared to higher risk-perceivers, t(16)=2.0 P=0.03. Irrespective of risk-perception group, actual pace was slower than predicted pace during the first 18 km, t(16)=8.9 P<0.001, and from 18 to 36 km, t(16)=4.0 P<0.001. In both experiments there was no difference in performance between higher and lower risk-perception groups. CONCLUSIONS: Initial pace is associated with an individual's perception of risk, with low perceptions of risk being associated with a faster starting pace. Large differences between predicted and actual pace suggests the performance template lacks accuracy, perhaps indicating greater reliance on momentary pacing decisions rather than pre-planned strategy.

Dis)located Olympic Patriots: Sporting Connections, Administrative Communications and Imperial Ether in Interwar New Zealand

During the interwar period (1919-1939) protagonists of the early New Zealand Olympic Committee [NZOC] worked to renegotiate and improve the country’s international sporting participation and involvement in the International Olympic Committee [IOC]. To this end, NZOC effectively used its locally based administrators and well-placed expatriates in Britain to variously assert the organisation’s nascent autonomy, independence and political power, progress Antipodean athlete’s causes, and, counter any potential doubt about the nation’s peripheral position in imperial sporting dialogues. Adding to the corpus of scholarship on New Zealand’s ties and tribulations with imperial Britain (in and beyond sport) (e.g. Beilharz and Cox 2007; Belich 2001, 2007; Coombes 2006; MacLean 2010; Phillips 1984, 1987; Ryan 2004, 2005, 2007), in this paper I examine how the political actions and strategic location of three key NZOC agents (specifically, administrator Harry Amos and expatriates Arthur Porritt and Jack Lovelock) worked in their own particular ways to assert the position of the organisation within the global Olympic fraternity. I argue that the efforts of Amos, Porritt and Lovelock also concomitantly served to remind Commonwealth sporting colleagues (namely Britain and Australia) that New Zealand could not be characterised as, or relegated to being, a distal, subdued, or subservient colonial sporting partner. Subsequently I contend that NZOC’s development during the interwar period, and particularly the utility of expatriate agents, can be contextualised against historiographical shifts that encourage us to rethink, reimagine, and rework narratives of empire, colonisation, national identity, commonwealth and belonging.

The Influence of Performance Level, Age and Gender on Pacing Strategy During a 100-km Ultramarathon

The aim of this study is to analyse the influence of performance level, age and gender on pacing during a 100-km ultramarathon. Results of a 100-km race incorporating the World Masters Championships were used to identify differences in relative speeds in each 10-km segment between participants finishing in the first, second, third and fourth quartiles of overall positions (Groups 1, 2, 3 and 4, respectively). Similar analyses were performed between the top and bottom 50% of finishers in each age category, as well as within male and female categories. Pacing varied between athletes achieving different absolute performance levels. Group 1 ran at significantly lower relative speeds than all other groups in the first three 10-km segments (all P < 0.01), and significantly higher relative speeds than Group 4 in the 6th and 10th (both P < 0.01), and Group 2 in the 8th (P = 0.04). Group 4 displayed significantly higher relative speeds than Group 2 and 3 in the first three segments (all P < 0.01). Overall strategies remained consistent across age categories, although a similar phenomenon was observed within each category whereby ‘top’ competitors displayed lower relative speeds than ‘bottom’ competitors in the early stages, but higher relative speeds in the later stages. Females showed lower relative starting speeds and higher finishing speeds than males. ‘Top’ and ‘bottom’ finishing males displayed differing strategies, but this was not the case within females. Although pacing remained consistent across age categories, it differed with level of performance within each, possibly suggesting strategies are anchored on direct competitors. Strategy differs between genders and differs depending on performance level achieved in males but not females.

Enhancing Student Learning Experiences in Sport Psychology Modules Using Practical Activities

The University of Worcester states in its most recent strategic plan (2013 – 2018) a set of enduring values that guide and direct the activities of the institution. The first listed, and perhaps the most important value is the striving to be “an outstanding university at which to be a student”. This is further supplemented by values such as “to inspire our students to reach their full potential through excellent, innovative teaching, scholarship and research” (University of Worcester 2013: p.4). One of the many ways in which the institution strives to provide this outstanding educational experience is through regular engagement, both formal and informal, with students at a number of points in each semester. Regular experiences of collating formal and informal feedback has led to the identification of a common theme amongst Higher National Diploma (HND) students in the Institute of Sport and Exercise Sciences (ISES), where they consistently request ‘more practicals’. The ISES modules however are designed to incorporate a high degree of interaction, practical activities and tasks. This is especially important for those studying at HND level as research suggests differences in learning preferences exist when compared to undergraduate students, the former preferring a more tactile style of learning (Peters et al. 2008). Using an introductory Sport Psychology HND module as an example, practical activities and tasks are fully embedded in the taught sessions to enable contextual links to be made between the learning outcomes and their subsequent use. Examples of these include: a. interviewing athletes to produce a performance profile (Butler & Hardy 1992); b. completing psychometric instruments such as the Competitive State Anxiety Inventory-2 (CSAI-2) to measure competitive anxiety in sport (Martens et al. 1990) and demonstrate data collection and construct measurement; c. performing relaxation interventions on the students to demonstrate how specific techniques (in this instance, decreasing somatic anxiety) might work in practice; d. demonstrating how observational learning facilitates skill acquisition by creating experimental conditions that the students participate in, in teaching a new skill. Nevertheless owing to the students' previously stated on-going requests for more practical activities, it became evident that assumptions about what students consider an effective means of experiential or active learning in the context of sport-related disciplines of study needed to be investigated. This is where the opportunity to undertake an action research project arose, this being a practical method commonly employed in pedagogical enquiry to aid reflection on teaching and assessment practice for the purposes of working towards continuous improvement.

In Protection of Whose “Wellbeing”? Considerations of “Clauses and A/Effects” in Athlete Contracts

Contractual agreements have become an accepted part of participation processes for athletes in a variety of sport contexts. Closer readings of these contracts,however, pose several questions regarding organizational intentions and motivations,the conceptualization of athletes as “workers,” and representation parity. In this article, we draw on four types of athlete contractual documents from both select international “amateur” and “professional” sport settings. Our key considerations include athletes’ ownership over their image and identities; medical and health disclosures; lifestyle, behavioral and body choices, and restrictions beyond sport; adherence to organizational philosophy and commitments; and social media and publicity constraints. Our exegesis here encourages sport researchers to deliberate whose “wellbeing” matters most when signing that seductive dotted line.

Double-trouble: Negotiating Gender and Sexuality in Post-colonial Women’s Rugby in Fiji

Although women’s exclusion in sport has attracted significant attention in the western context, similar issues in relation to post-colonial societies have remained in the margins of the sociology of sport. By analysing primary, interview-based evidence, in this article we explore the challenges female rugby players face regarding gender and sexuality in Fiji; a male dominated post-colonial society. In particular, we focus on participants’ resistance to dominant cultural practices and ways in which they (re)negotiate gender norms and sexuality in a double-bind struggle against both traditional and sporting male hegemonies. We argue that the case of Fijian women rugby players illustrates an interplay between a multiplicity of power relations in sport in a post-colonial society and the resilience with which the athletes negotiate and respond to them, as well as the dynamic nature and the transformative potential of their everyday practices.

High Performance Disability Sport Coaching

As the profile of disability sport has risen, so has the emphasis grown beyond participation to include the development of a high performance environment. This book is the first to take an in-depth look at the role of coaches and coaching in facilitating the professionalisation of disability sport, in raising performance standards, and as an important vector for the implementation of significant political, socio-cultural and technological change. Using in-depth case studies of elite disability sport coaches from around the world, the book offers a framework for critical reflection on coaching practice as well as the reader’s own experiences of disability sport. The book also evaluates the vital role of the coach in raising the bar of performance in a variety of elite level disability sports, including athletics, basketball, boccia, equestrian sport, rowing, soccer, skiing, swimming and volleyball. Providing a valuable evidence-based learning resource to support coaches and students in developing their own practice, High Performance Disability Sport Coaching is essential reading for all those interested in disability sport, coaching practice, elite sport development and the Paralympic Games.

Beyond High Performance Disability Sports Coaching?

As the profile of disability sport has risen, so has the emphasis grown beyond participation to include the development of a high performance environment. This book is the first to take an in-depth look at the role of coaches and coaching in facilitating the professionalisation of disability sport, in raising performance standards, and as an important vector for the implementation of significant political, socio-cultural and technological change. Using in-depth case studies of elite disability sport coaches from around the world, the book offers a framework for critical reflection on coaching practice as well as the reader’s own experiences of disability sport. The book also evaluates the vital role of the coach in raising the bar of performance in a variety of elite level disability sports, including athletics, basketball, boccia, equestrian sport, rowing, soccer, skiing, swimming and volleyball. Providing a valuable evidence-based learning resource to support coaches and students in developing their own practice, High Performance Disability Sport Coaching is essential reading for all those interested in disability sport, coaching practice, elite sport development and the Paralympic Games.

High Performance Disability Sport Coaching: Introduction

As the profile of disability sport has risen, so has the emphasis grown beyond participation to include the development of a high performance environment. This book is the first to take an in-depth look at the role of coaches and coaching in facilitating the professionalisation of disability sport, in raising performance standards, and as an important vector for the implementation of significant political, socio-cultural and technological change. Using in-depth case studies of elite disability sport coaches from around the world, the book offers a framework for critical reflection on coaching practice as well as the reader’s own experiences of disability sport. The book also evaluates the vital role of the coach in raising the bar of performance in a variety of elite level disability sports, including athletics, basketball, boccia, equestrian sport, rowing, soccer, skiing, swimming and volleyball. Providing a valuable evidence-based learning resource to support coaches and students in developing their own practice, High Performance Disability Sport Coaching is essential reading for all those interested in disability sport, coaching practice, elite sport development and the Paralympic Games.

Global sport in the suburbs: the Regent Street Polytechnic’s sports facilities at Chiswick, 1888–1938

This article shows how the elite origins and religious mission of the Regent Street Polytechnic encouraged participation in amateur sport in London, and promoted the suburb of Chiswick as a global context for competitive sports. From the 1880s to the outbreak of World War 2, the Polytechnic and its facilities forged synergies between the city centre and the burgeoning suburbs in London, engendering a city-wide culture of amateur sports, and embedding the Polytechnic into a global network of athletes. Suburbs are typically presented by writers as being ‘on the edge’ of metropolitan life, but such perspectives are wrong. The West London suburb of Chiswick was the home of Polytechnic facilities that provided a dynamic context for the internationalization and modernization of sport in the capital.