112,036 research outputs found
Reducing the risks for traumatic and overuse injury among competitive alpine skiers
No full textTo achieve success, skiers attempt to optimise various biomechanical parameters (eg, trajectory, velocity, interaction
between the skis and snow, energy) that influence performance,1 but this increases risk of injury.2 It is therefore not surprising that injuries are common among alpine skiers.3 To reduce the injury rate, the International Ski Federation (FIS) regulates ski length and width, sidecut radius,
and the distance between the foot and ground. In the case of slalom skis, only the minimal waist width is regulated
(≥63 mm), while in other disciplines the maximal waist width is regulated by FIS (typically ≤65 mm). On hard snow,
wider skis are associated with an elevated risk for injury,4 so we suggest that it may be wise to revise this FIS
regulation.
Measures concerning the geometry of skis implemented recently have contributed significantly to the 26% reduction in
absolute injury rate (injuries/100 athletes/season) (risk ratio 0.74, 95% CI 0.63 to 0.87).3 We acknowledge that
new regulations concerning helmets, the development of wearable airbags, and an enhanced awareness of the influence of
external conditions most likely have contributed as well. At the same time, additional approaches designed to elucidate the multifactorial causes of injury
are warranted. Since it appears impractical to regulate other properties of the skis (eg, bending/torsional stiffness,
edges and running base) during official competitions, we propose that the following measures might improve safety in
connection with competitive alpine skiing
Is precision during manual pointing reflected in ERP amplitudes?
No full textKoester D, Schack T, Stojan R. Is precision during manual pointing reflected in ERP amplitudes? In: Schwirtz A, Mess F, Demetriou Y, Senner V, eds. Innovation & Technologie im Sport Abstractband zum 23. dvs-Hochschultag. Schriften der Deutschen Vereinigung für Sportwissenschaft. Vol Band 265. Hamburg: Cwalina; 2017: 82
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
Relevanz von Behinderungen im inklusiven Sportunterricht aus der Sicht von Lehrkräften - Theoretische und empirische Anhaltspunkte
No full textRischke A, Braksiek M. Relevanz von Behinderungen im inklusiven Sportunterricht aus der Sicht von Lehrkräften - Theoretische und empirische Anhaltspunkte. In: Schwirtz A, Mess F, Demetriou Y, Senner V, eds. Innovation & Technologie im Sport. Deutsche Vereinigung für Sportwissenschaft. Schriften der Deutschen Vereinigung für Sportwissenschaft. Vol 265. Hamburg: Feldhaus; 2017
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Können Instruktionen und ein Placebotape am unteren Rücken die Beweglichkeit und das Schmerzempfinden beeinflussen?
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