Reviewing the Variability-Overuse Injury Hypothesis: Does Movement Variability Relate to Landing Injuries?     

Andrew D. Nordin  Janet S. Dufek 《Research quarterly for exercise and sport》2019,90(2):190-205

Purpose: Overuse injuries are common in sport, but complete understanding of injury risk factors remains incomplete. Although biomechanical studies frequently examine musculoskeletal injury mechanisms, human movement variability studies aim to better understand neuromotor functioning, with proposed connections between overuse injury mechanisms and changes in motor variability. Method: In a narrative review, we discuss the variability-overuse injury hypothesis, which suggests repeated load application leads to mechanical tissue breakdown and subsequent injury when exceeding the rate of physiological adaptation. Due to the multidisciplinary nature of this hypothesis, we incorporate concepts from motor control, neurophysiology, biomechanics, as well as research design and data analysis. We therefore summarize multiple perspectives while proposing theoretical relationships between movement variability and lower extremity overuse injuries. Results: Experimental data are presented and summarized from published experiments examining interactions between experimental task demands and movement variability in the context of drop landing movements, along with comparisons to previous movement variability studies. Conclusion: We provide a conceptual framework for sports medicine researchers interested in predicting and preventing sports injuries. Under performance conditions with greater task demands, we predict reduced trial-to-trial movement variability that could increase the likelihood of overuse injuries.  相似文献   

Antecedent and consequent stimuli in teacher-child dyads     

M F Harrison  T L Layton  T D Taylor 《American annals of the deaf》1987,132(3):227-231

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Alcoholism in America: From Reconstruction to Prohibition     

Janet Golden 《Journal of American culture (Malden, Mass. : 2003)》2006,29(1):62-63

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Making Sense of Education—for Whom?     

Graham Haydon  Janet Orchard 《Journal of Philosophy of Education》2004,38(1):149-157

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Academic achievement following childhood brain disease: implications for the concept of learning disabilities.     

H G Taylor  C Schatschneider 《Journal of learning disabilities》1992,25(10):630-638

The present study examined three hypotheses regarding the consequences of early brain damage for academic achievement: First, early brain insults will have a negative impact on achievement, even in children with normal intelligence. Second, underachievement in these children will be at least partially independent of IQ (i.e., not fully accounted for by a lowering of IQ within the average range). Third, normally intelligent children with histories of brain insult will also manifest selective cognitive dysfunctions. To test these hypotheses, we compared two groups of children who had recovered from Haemophilus influenzae type b meningitis. The "complicated" group consisted of children who, as a consequence of having sustained neurologic complications during their illness, were more likely to have had brain insults. Children in the "uncomplicated" group did not have complications with their illness and were regarded as having escaped significant central nervous system (CNS) pathology. Only children with normal hearing and a prorated Full Scale IQ of at least 80 (WISC-R) were considered. Group differences on the Wide Range Achievement Test-Revised were consistent with the first two hypotheses. Although the two groups had similar Verbal IQs, the complicated group also had a lower mean Performance IQ and performed less well on perceptually demanding neuropsychological tasks. Findings suggest that learning disabilities may have selective, brain-related cognitive antecedents; but they challenge the practice of using IQ criteria for clinical diagnosis.  相似文献   

Medical library downsizing: administrative,professional and personal strategies for coping with change     

Janet M. Fraser 《Health information and libraries journal》2006,23(1):76-76

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‘Me Write Myself’: The Free Aboriginal Inhabitants of Van Diemen’s Land at Wybalenna, 1832–47     

Rebe Taylor 《档案与原稿》2019,47(1):172-174

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Science Instruction for Students with Learning Disabilities: A Meta‐Analysis     

William J. Therrien  Jonte C. Taylor  John L. Hosp  Erica R. Kaldenberg  Jay Gorsh 《Learning disabilities research & practice》2011,26(4):188-203

Although science has received much attention as a political and educational initiative, students with learning disabilities (LD) perform significantly lower than their nondisabled peers. This meta‐analysis evaluates the effectiveness of instructional strategies in science for students with LD. Twelve studies were examined, summarized, and grouped according to the type of strategy implemented. Effect sizes (ES) were calculated for each study. Across all studies, a mean ES of .78 was obtained, indicating a moderate positive effect on students with LD science achievement. Findings also align with past reviews of inquiry‐based instruction for students with special needs, indicating that students with LD need structure within an inquiry science approach in order to be successful. Additionally, results suggest that mnemonic instruction is highly effective at increasing learning disabled students' acquisition and retention of science facts.  相似文献   

Moral development in a global world: research from a cultural-developmental perspective     

Janet Kwok 《Journal of moral education》2016,45(1):109-111

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Taking charge and letting go: exploring the ways a Transition to Adulthood project for teenagers with Duchenne muscular dystrophy has supported parents to prepare for the future          下载免费PDF全文

Janet Hoskin 《British Journal of Special Education》2017,44(2):165-185

The new Special Educational Needs and Disability legislation in the Children and Families Act 2014 intends to raise the aspirations of young people with special educational needs and their families, and improve their life outcomes. But what do raised aspirations and better outcomes look like for young people who have a life‐limiting impairment? This article draws on data from a parent evaluation of a lottery‐funded Transition to Adulthood project for boys with Duchenne muscular dystrophy (DMD), called ‘Takin’ Charge’, focusing in particular on whether or not the project helped parents of boys with DMD prepare for the future. Key themes that emerged were the importance and novelty of older role models with DMD in the project who were able to share their journeys into adulthood, the support between families that the project enabled, the meaning of family resilience and aspirations for a normal life. The use of solution‐focused questioning with families affected by a life‐limiting impairment is also explored.  相似文献