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151.
152.
Jeffrey B. Taylor Kevin R. Ford Randy J. Schmitz Scott E. Ross Terry A. Ackerman Sandra J. Shultz 《Journal of sports sciences》2018,36(21):2492-2501
Anterior cruciate ligament (ACL) injury prevention programmes have not been as successful at reducing injury rates in women’s basketball as in soccer. This randomised controlled trial (ClinicalTrials.gov #NCT02530333) compared biomechanical adaptations in basketball and soccer players during jump-landing activities after an ACL injury prevention programme. Eighty-seven athletes were cluster randomised into intervention (6-week programme) and control groups. Three-dimensional biomechanical analyses of drop vertical jump (DVJ), double- (SAG-DL) and single-leg (SAG-SL) sagittal, and double- (FRONT-DL) and single-leg (FRONT-SL) frontal plane jump landing tasks were tested before and after the intervention. Peak angles, excursions, and joint moments were analysed using two-way MANCOVAs of post-test scores while controlling for pre-test scores. During SAG-SL the basketball intervention group exhibited increased peak knee abduction angles (p = .004) and excursions (p = .003) compared to the basketball control group (p = .01) and soccer intervention group (p = .01). During FRONT-SL, the basketball intervention group exhibited greater knee flexion excursion after training than the control group (p = .01), but not the soccer intervention group (p = .11). Although women’s soccer players exhibit greater improvements in knee abduction kinematics than basketball players, these athletes largely exhibit similar biomechanical adaptations to ACL injury prevention programmes. 相似文献
153.
In this study, we analysed running world records and found that the mean speed of the race, μ, as a function of the record time, τ, can be described asymptotically by two well-defined scaling laws of the form u ?s τ - β. There is a break in the scaling laws (?1000m) between the shorter and the longer races at a characteristic time of around 150-170 s, after which a new scaling regime emerges. This is the first occasion that this characteristic time has been clearly found in physical terms; we interpreted it as the transition time between the anaerobic and the aerobic energy expenditure of athletes. This phenomenon is independent of the athletes' sex and is also found in swimming races with similar values of the characteristic time. We also investigated the forecasting of world records using historical data. Using an approach based on the identification of non-Poissonian events for a sequence of temporal point processes, we found that the sequence of improvements in all athletic records from 1900 to the present day cannot be considered as a sequence of completely random events. 相似文献
154.
Sandra Collins 《国际体育史杂志》2013,30(3):357-374
Modern Japan has considered global sport an appropriate forum for not only defining the national cultural identity of Japan but also for conducting its international diplomacy. The recent phenomenon of Japanese baseball athletes ‘defecting’ from Japanese leagues to play for the American baseball leagues has often been described in political terms. This paper argues that the current trend of analysing Japanese nationals playing baseball in America in political terms can be historically contextualized by reviewing the bids by Japanese cities for the 1940, 1964, 1998 and 2016 Olympic Games. 相似文献
155.
A previous article in Higher Education in Europe (Vol. 24, No. 2, 1999), by three of the authors of the present article, outlined the beginnings of an on-line course, "Marketing Theory and Practice" (MTP), offered by the Department of Marketing of Monash University in Australia. It noted the opportunities such a development presented in terms of collaboration. Following the successful introduction of MTP on-line (http://www.buseco.monash.edu.au/Subjects/MKT/ MTPonline/) into the undergraduate programme, the project team applied for a significant funding grant to implement a department-wide strategy for the electronic delivery of marketing education. This implementation includes the development of an E-Master's degree in Marketing, details of which are discussed in this article. 相似文献
156.
A Global Developmental Trend in Cognitive Processing Speed 总被引:5,自引:1,他引:5
Sandra Hale 《Child development》1990,61(3):653-663
Children respond more slowly than young adults on a variety of information-processing tasks. The global trend hypothesis posits that processing speed changes as a function of age, and that all component processes change at the same rate. A unique prediction of this hypothesis is that the overall response latencies of children of a particular age should be predictable from the latencies of young adults performing the same tasks--without regard to the specific componential makeup of the task. The current effort tested this prediction by examining the performance of 4 age groups (10-, 12-, 15-, and 19-year-olds) on 4 different tasks (choice reaction time, letter matching, mental rotation, and abstract matching). An analysis that simultaneously examined performance on all 4 tasks provided strong support for the global trend hypothesis. By plotting each child group's performance on all 4 tasks as a function of the young adult group's performance in the corresponding task conditions, precise linear functions were revealed: 10-year-olds were approximately 1.8 times slower than young adults on all tasks, and 12-year-olds were approximately 1.5 times slower, whereas 15-year-olds appeared to process information as fast as young adults. 相似文献
157.
158.
The complexity of toddlers' self-development was examined in the context of knowing others. Two studies were designed to test whether toddlers' self-knowledge was different from their knowledge of others (e.g., mother and inanimate object) or whether toddlers' knowledge of persons (e.g., self and mother) was different from their knowledge of objects. Knowledge of self, mother, and inanimate object was observed in developmentally sequenced tasks assessing agency and featural knowledge. When the inanimate object was perceptually different from humans, 12-month-old toddlers responded differently to all 3 versions. When the inanimate object was perceptually similar to humans, 24-month-olds, distinguished self from other and did not distinguish between the 2 versions of "other:" mother and inanimate object. We concluded that 12-month-old infants were more sensitive to perceptual features of objects than were older toddlers. Data were interpreted according to Neisser's distinction between the ecological self and the interpersonal self. 相似文献
159.
We explored the effects of Fast ForWord (FFW) training on reading and spoken language skills in children with difficulties
in phonemic awareness and word identification. Gains were examined both immediately after treatment and over a period of two
years. In the short term, children who received FFW training were compared to children who received Orton Gillingham (OG)
training. The FFW group was also compared to a matched longitudinal control group (LC); all participants in the FFW and LC
groups received similar multisensory structured language instruction over two academic years. The FFW and OG groups made similar
gains in phonemic awareness. However, the children who received FFW training did not show significant gains in word identification
or word attack whereas the children who received OG training made significant gains in word attack. Immediately after treatment,
the FFW group showed significant gains in speaking and syntax, but these gains were not maintained over two years. The FFW
group did not differ significantly from the LC group in any areas over the two years. Children in both groups made significant
progress in phonemic awareness and reading. 相似文献
160.
Cesario SK 《The Journal of perinatal education》2003,12(2):31-40
The practice of abandoning newborns shortly after birth has always existed. Occurring in primitive and contemporary societies, the motivations for newborn abandonment are varied and dependent upon the social norms of a specific geographic region at a given point in time. Because the desire to abandon an infant has had no support system in American society, such unwanted infants have been abandoned in a manner leading to their deaths. In response, many states have passed safe-haven legislation to save the lives of unwanted newborns. The laws typically specify a mother's ability to "abandon" her child to a medical service provider. However, judgmental attitudes and a lack of accurate information may impede a health care provider's ability to carry out a safe-haven law. The study described here examines a sample of nurses in a state with a safe-haven law. The study revealed no significant correlation between a nurse's knowledge, attitude, and self-perception of preparedness to manage a newborn abandonment event. owever, the outcomes highlight the negative attitudes and lack of knowledge many nurses possess regarding newborn abandonment and the women who commit this act. Educational programs for all health care providers and the community are essential to the efficacy of the legislation that currently exists. Continued multidisciplinary strategizing and general awareness are needed to serve as catalysts to build supports for unwanted newborns and their safe assimilation into the community. 相似文献