29 resultados para 20m sprint

em BORIS: Bern Open Repository and Information System - Berna - Suiça


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BACKGROUND Posttraumatic Stress Disorder (PTSD) may occur in patients after exposure to a life-threatening illness. About one out of six patients develop clinically relevant levels of PTSD symptoms after acute myocardial infarction (MI). Symptoms of PTSD are associated with impaired quality of life and increase the risk of recurrent cardiovascular events. The main hypothesis of the MI-SPRINT study is that trauma-focused psychological counseling is more effective than non-trauma focused counseling in preventing posttraumatic stress after acute MI. METHODS/DESIGN The study is a single-center, randomized controlled psychological trial with two active intervention arms. The sample consists of 426 patients aged 18 years or older who are at 'high risk' to develop clinically relevant posttraumatic stress symptoms. 'High risk' patients are identified with three single-item questions with a numeric rating scale (0 to 10) asking about 'pain during MI', 'fear of dying until admission' and/or 'worrying and feeling helpless when being told about having MI'. Exclusion criteria are emergency heart surgery, severe comorbidities, current severe depression, disorientation, cognitive impairment and suicidal ideation. Patients will be randomly allocated to a single 45-minute counseling session targeting either specific MI-triggered traumatic reactions (that is, the verum intervention) or the general role of psychosocial stress in coronary heart disease (that is, the control intervention). The session will take place in the coronary care unit within 48 hours, by the bedside, after patients have reached stable circulatory conditions. Each patient will additionally receive an illustrated information booklet as study material. Sociodemographic factors, psychosocial and medical data, and cardiometabolic risk factors will be assessed during hospitalization. The primary outcome is the interviewer-rated posttraumatic stress level at three-month follow-up, which is hypothesized to be at least 20% lower in the verum group than in the control group using the t-test. Secondary outcomes are posttraumatic stress levels at 12-month follow-up, and psychosocial functioning and cardiometabolic risk factors at both follow-up assessments. DISCUSSION If the verum intervention proves to be effective, the study will be the first to show that a brief trauma-focused psychological intervention delivered within a somatic health care setting can reduce the incidence of posttraumatic stress in acute MI patients. TRIAL REGISTRATION ClinicalTrials.gov: NCT01781247.

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In the current study, we consider that optimal sprint start performance requires the self-control of responses. Therefore, start performance should depend on athletes' self-control strength. We assumed that momentary depletion of self-control strength (ego depletion) would either speed up or slow down the initiation of a sprint start, where an initiation that was sped up would carry the increased risk of a false start. Applying a mixed between- (depletion vs. nondepletion) and within- (before vs. after manipulation of depletion) subjects design, we tested the start reaction times of 37 sport students. We found that participants' start reaction times decelerated after finishing a depleting task, whereas it remained constant in the nondepletion condition. These results indicate that sprint start performance can be impaired by unrelated preceding actions that lower momentary self-control strength. We discuss practical implications in terms of optimizing sprint starts and related overall sprint performance.

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We tested the assumption that ego depletion would affect the sprint start in a sample of N = 38 athletes without track and field experience in an experiment by applying a mixed between- (depletion vs. non-depletion) within- (T1: before manipulation of ego depletion vs. T2: after manipulation of ego depletion) subjects design. We assumed that ego depletion would increase the possibility for a false start, as regulating the impulse to initiate the sprinting movement too soon before the starting signal requires self-control. In line with our assumption, we found a significant interaction as there was only a significant increase in the number of false starts from T1 to T2 for the depletion group while this was not the case for the non-depletion group. We conclude that ego depletion has a detrimental influence on the sprint start in athletes without track and field experience.

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According to one’s personal biography, social background and the resultant degree of affectedness, a person has certain ideas about the meaning of, in our example, a World Heritage Site (WHS), what he or she can expect from it and what his or her relation to it can and should be. The handling of potentially different meaningful spaces is decisive, when it comes to the negotiation of pathways towards the sustainable development of a WHS region. Due to the fact that – in a pluralistic world – multiple realities exist, they have to be taken seriously and adequately addressed. In this article we identified the ways the Jungfrau-Aletsch- WHS was constructed by exploring the visual and verbal representations of the WHS during the decision-making process (1998-2001). The results demonstrate that in the visual representations (images), the WHS was to a large extent presented as an unspoiled natural environment similar to a touristy promotion brochure. Such a ‘picture-book’-like portrait has no direct link to the population’s daily needs, their questions and anxieties about the consequences of a WHS label. By contrast, the verbal representations (articles, letters-to-the-editor, comments) were dominated by issues concerning the economic development of the region, fears of disappropriation, and different views on nature. Whereas visual and verbal representations to a large extent differ significantly, their combination might have contributed to the final decision of the majority of people concerned to support the application for inscription of the Jungfrau-Aletsch-Bietschhorn region into the World Heritage list. The prominence of economic arguments and narratives about intergenerational responsibility in the verbal representations and their combination with the aesthetic appeal of the natural environment in the visual representations might have built a common meaningful space for one part of the population.

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Physical fitness can be evaluated in competitive and school sports with different field tests under different conditions and goals. To produce valid results, a field test must be practical and reach high standards of test criteria (objectivity, reliability, validity). The purpose of this study was to investigate the test criteria and the practicability of a group of field tests called «SUISSE Sport Test Konzept Basis Feldtestbatterie». For 20-m sprint, ventral trunk muscle test, standing long jump, 2-kg medicine ball shot, obstacle course and cooper-test, test quality and practicability were evaluated. 221 children and adolescents from competitive sports and different school levels took part in the study. According to school level, they were divided into 3 groups (P: 7–11.5 y, S1: 11.6–15.5 y, S2: 15.6–21.8 y). Objectivity was tested for time or distance measurement in all tests as well as for error rating in obstacle test. For reliability measurement, 162 subjects performed the field tests twice within a few weeks. For validity results of standing long jump were compared with counter movement jump performance on a force plate. Correlation analysis was performed and level of significance was set for p < 0.05. For accuracy standard error was calculated. All tests achieved sufficient to excellent objectiv - ity with correlation-coefficient (r) lying between 0.85 and 0.99. Reliability was very good (r = 0.84–0.97). In cooper- and trunk test, reliability was higher for athletes than for pupils (trunk test: r = 0.95 vs. r = 0.62, cooper-test: r = 0.90 vs. r = 0.78). In those tests the reliability decreases with increasing age (cooper-test: P: r = 0.84, S1: r = 0.69, S2: r = 0.52; trunk-test: P: r = 0.69, S1: r = 0.71; S2: r = 0.39). Validity for standing long jump was good (r = 0.75–0.86). The standard error of the mean was between 4–8%, with the exception for cooper-test (athletes: 6%, pupils: 11%) and trunk test (athletes: 14%, pupils: 46%). The results show that the evaluated group of field tests is a practicable, objective and reliable tool to determine physical skills in young athletes as well as in a scholar setting over a broad age range. Most of the tests achieved the test criteria with the grades good to excellent. The lower coefficient of reliability for cooper- and trunk test by the pupils could be explained by motivational problems in this setting. For up to 20 subjects, a tester can accomplish the tests within 3 h. Finally, age-dependent grades were elaborated

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We report on our experiences with the Spy project, including implementation details and benchmark results. Spy is a re-implementation of the Squeak (i.e., Smalltalk-80) VM using the PyPy toolchain. The PyPy project allows code written in RPython, a subset of Python, to be translated to a multitude of different backends and architectures. During the translation, many aspects of the implementation can be independently tuned, such as the garbage collection algorithm or threading implementation. In this way, a whole host of interpreters can be derived from one abstract interpreter definition. Spy aims to bring these benefits to Squeak, allowing for greater portability and, eventually, improved performance. The current Spy codebase is able to run a small set of benchmarks that demonstrate performance superior to many similar Smalltalk VMs, but which still run slower than in Squeak itself. Spy was built from scratch over the course of a week during a joint Squeak-PyPy Sprint in Bern last autumn.

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Das von der Laureus Stiftung Schweiz geförderte Programm Girls in Sport beinhaltet die gleichnamige Studie zum Sportverhalten und zu den Sportbedürfnissen von Mädchen ab 10 Jahren in der Schweiz. Prinzipiell sind Mädchen an Bewegung und am Sport interessiert. Im historischen Vergleich haben sie inzwischen einen sportiven Lebensstil entwickelt, zeigen vielfältige Sport- und Bewegungsinteressen sowie ein Bedürfnis, sich sportlich zu bewegen (Gramespacher & Feltz 2009; Hartmann-Tews 2009). Allerdings verdeutlichen die Daten des ersten umfassenden Sportberichts Sport Schweiz 2008 (Lamprecht et al. 2008), dass sich für Mädchen in der Schweiz Barrieren auf dem Weg in den (organisierten) Sport ergeben. Die Hindernisse sind teilweise in den Strukturen des Sports selbst verortet, zum Teil aber entstehen sie auch aufgrund sozialer und kultureller Ungleichheiten. So zeigt sich etwa, dass Mädchen bildungsferner Milieus und Mädchen mit Migrationshintergrund in Schweizer Sportvereinen unterrepräsentiert sind. Die zentralen Forschungsfragen der Studie Girls in Sport lauten: Welche sportbezogenen Interessen haben Mädchen in der Schweiz? Welche Hindernisse erfahren sie auf ihrem Weg in den Sport? Wie können Mädchen besser in den (organisierten) Sport integriert werden? Zuerst ist eine Re-Analyse der auf die Mädchen bezogenen Daten von Sport Schweiz 2008 erfolgt (Fischer et al. 2012). Eine zentrale Erkenntnis dieser Teilstudie ist, dass Mädchen in den drei Sprachregionen der Schweiz (deutsch, französisch und italienisch) signifikant unterschiedliches Interesse am Verhalten im Sport zeigen. Im zweiten Teil der Studie werden im Sommer 2012 mittels qualitativer Methoden zu erhebende Daten von Mädchen in den drei Sprachregionen der Schweiz gewonnen. Die Daten werden in einer Aufsatzstudie (vgl. Faulstich-Wieland & Horstkemper 1995, S. 17f.) sowie anhand einiger Gruppeninterviews gewonnen. Sie sollen Aufschluss darüber geben, wie Mädchen ihre Situation in den Sportvereinen deuten, und welche Interessen Mädchen an Sportvereinen oder anderen organisierten Sportinstanzen haben. Diese Teilstudie bildet insofern eine Herausforderung, da die meist vielgestaltigen Interessenlagen von Mädchen (Gramespacher & Feltz 2009) zu erfassen und zugleich mit Blick auf deren kulturelle Einbindungen – sowohl in der Schweiz als auch in Bezug auf ihren möglichen Migrationshintergrund – zu reflektieren sind. Sie bietet allerdings zugleich die Chance, die Mädchen selbst zu Wort kommen zu lassen. Damit folgt diese Teilstudie einem Grundsatz der Kindheitsforschung (Alanen 1997), dessen Beachtung es ermöglicht, dass die Mädchen die Chance erhalten, ihre eigenen Vorstellungen, Wünsche und Visionen über einen „idealen“ Sportverein differenziert darzulegen. Der Abgleich zwischen der Vorstellung der Mädchen und der in Studien dargelegten Situation der Sportvereine in der Schweiz (Lamprecht et al. 2011) wird schließlich dazu beitragen, die oben genannten Forschungsfragen aufzuklären. Literatur Alanen, L. (1997). Soziologie der Kindheit als Projekt: Perspektiven für die Forschung. Zeitschrift für Soziologie, der Erziehung und Sozialisation 17(1), 162-177. Faulstich-Wieland, H. & Horstkemper, M. (1995). „Trennt uns bitte, bitte nicht!“ Koedukation aus Mädchen und Jungensicht. Opladen: Leske + Budrich. Fischer, A., Lamprecht, M. & Stamm, H. P. (2012). Sportaktivitäten von Mädchen und jungen Frauen in der Schweiz. Die wichtigsten Fakten. Zürich. Gramespacher, E. & Feltz, N. (Hrsg.). (2009). Bewegungskulturen von Mädchen – Bewegungsarbeit mit Mädchen. Immenhausen: Prolog-Verlag. Hartmann-Tews, I. (2009). Sportentwicklung und Inklusion aus Geschlechterperspektive. In: E. Balz & D. Kuhlmann (Hrsg.), Sportentwicklung. Grundlagen und Facetten (S. 65-75). Aachen: Meyer & Meyer. Lamprecht, M., Fischer, A. & Stamm, H. P. (2011). Sportvereine in der Schweiz. Magglingen: BASPO. Lamprecht, M., Fischer, A. & Stamm, H. P. (2008). Sport Schweiz 2008. Das Sportverhalten der Schweizer Bevölkerung. Magglingen: BASPO.

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The present research focuses on the question of whether even a preliminary decision causes a confirmation bias in order to maintain the status quo and examines individual differences in consistency between the preliminary and final decision and biased information processing. Dispositional Need for Closure (NFC, Webster & Kruglanski, 1994) was expected to predict revision or maintenance of the preliminary decision (decision consistency) after additional information on the issue was searched for and evaluated. Participants higher on dispositional NFC were less likely to change their preliminary decision than participants lower on dispositional NFC. Furthermore, the effect of NFC on decision consistency was fully mediated by biased information evaluation following the preliminary decision.

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Support among US citizens for severe interrogation has been recognized as drawing upon utilitarian as well as on retributive motivation (Carlsmith & Sood, 2009). Two studies were conducted to expand on these findings in a Swiss sample. In Study 1, participants rated the severity of different interrogation techniques, which were scaled to provide an alternative measure of interrogation severity. In Study 2, retributive motivation was manipulated by varying the terrorist past of a male suspect, and utilitarian motivation was manipulated by varying the probability that the suspect could provide valuable information. Additionally, we manipulated the suspect’s group membership. The results of the vignette study suggest that the number and severity of recommended interrogation techniques is mainly influenced by whether the suspect might provide valuable information. Whether the suspect had a terrorist past was an additional influence that, however, was primarily attributable to the suspect’s group membership: If the suspect belonged to the ingroup, participants’ harsher interrogation recommendations were affected by that person’s past, whereas recommendations were not significantly influenced by a terrorist past if the suspect was an outgroup member.

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Immigrants' sense of self can be derived both from being members of their ethnic in-group and their country of residence. We examined how the ways in which immigrant adolescents integrate these self-views in relation to academic success in German schools. Students describe themselves at school and when with family. Using a standardized literacy performance test, analyses revealed that immigrants whose school-related self-view did not include Germany were less successful: Students who described their self as including both aspects of their ethnic group and Germany, and students who saw themselves predominantly as German, outperformed students with purely ethnic school-related selves. As expected, though, an ethnic family-related self-view did not have a negative impact on scholastic achievements.

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The capabilities of postmodern biotechnology inevitably lead to questioning if it is morally acceptable to use all possibilities offered by technology. In sport, this very complex issue is dealt with by drawing clear boundaries between naturalness and artificiality. Currently, new biotechnology is constantly being produced and with this, boundaries between naturalness and artificiality, between normal and abnormal, human and hybrid are constantly shifting . “Human enhancement” is a fascinating prism that reflects contemporary questions of participation, justice, equality and the autonomy of the subject in all social fields. The area of elite sports is particularly affected by “human enhancement”, according to the principle of exceeding what has come before, of aiming higher, faster and further. This paper analyses the postulated “naturalness” in the regulative and normalising function in the area of elite sports, in connection with Foucault’s theory of governmentality. The example of the South African sprinter Oscar Pistorius appears to be particularly suited to illustrate current definition difficulties in the area of disabled and non-disabled people in differentiated competitive sports. His is a vivid example of a multifaceted body-sociological analysis of current sport culture and the construction of reality or naturalness in the framework of the discourse of drafting and negotiating the accreditation for sprint competitions of non-disabled athletes, most recently in the London Olympics 2012. Using the case study of Oscar Pistorius, the negotiating processes in relation to the argumentation logic, dynamics and resistance in shifting distinctions are presented in detail using the fundamental documents of the IOC, IPC, CAS and IAAF. Represented through the inclusion and exclusion processes are hierarchies of the body that are (re)consolidated and transformed. The central question emerges as to how the worth of equal opportunity and fairness in regard to “naturalness” can be reconsolidated or transformed.