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Taylor Holt 《Journal of sports sciences》2016,34(9):856-861
The purpose of this study was to examine the relationship between dynamic hip rotational range of motion and upper extremity kinematics during baseball pitching. Thirty-one youth baseball pitchers (10.87 ± 0.92 years; 150.03 ± 5.48 cm; 44.83 ± 8.04 kg) participated. A strong correlation was found between stance hip rotation and scapular upward rotation at maximum shoulder external rotation (r = 0.531, P = 0.002) and at ball release (r = 0.536, P = 0.002). No statistically significant correlations were found between dynamic hip rotational range of motion and passive hip range of motion. Hip range of motion deficits can constrain pelvis rotation and limit energy generation in the lower extremities. Shoulder pathomechanics can then develop as greater responsibility is placed on the shoulder to generate the energy lost from the proximal segments, increasing risk of upper extremity injury. Additionally, it appears that passive seated measurements of hip range of motion may not accurately reflect the dynamic range of motion of the hips through the progression of the pitch cycle. 相似文献
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Kevin H. Ashford-Rowe Marnie Holt 《美中教育评论》2011,(3):317-322
The "emerging educational institutional decision-making matrix" is developed to allow educational institutions to adopt a rigorous and consistent methodology of determining which of the myriad of emerging educational technologies will be the most compelling for the institution, particularly ensuring that it is the educational or pedagogical but not the technological imperative that drives the technology integration agenda. The matrix is designed to be used after some initial research into an emerging technology. Once a technology is put through the matrix, a member of options are available: (1) shelving the technology; (2) putting the technology on hold and maintaining a watching brief until the technology matures in the market; and (3) researching the product further by conducting a trial or placing in testing sandpit. After further research, the technology can be tested as a pilot to determine how well or otherwise, the technology works within the institution. If an emerging technology has more than one product associated with it, a second and third step in the matrix has been developed, and the second step assigns a rating to each of the categories within the matrix. With many products containing similar features, a third step has been developed to compare products on a feature level. 相似文献
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Working and Playing Together: Prediction of Preschool Social-Emotional Competence from Mother-Child Interaction 总被引:2,自引:0,他引:2
The impact of mother-child interaction on preschoolers' social-emotional competence was evaluated. Twenty-five girls and 23 boys (mean age = 44 mos) and their mothers were videotaped performing four play/teaching tasks. Preschool teachers completed the Baumrind Preschool Behavior Q-Sort and the Behar Problem Behavior Questionnaire. Mother-child interaction aggregates represented task orientation, positive emotion, and allowance of autonomy/reliance on mother. Results indicated that specific maternal interaction aggregates coherently predicted the children's Positive Social Behavior, Assertiveness, and Sadness in the preschool setting. Child aggregates were less effective predictors of teachers' ratings. Several gender differences in the prediction of social-emotional competence were found (e.g., maternal allowance of autonomy predicted girls' sadness, but boys' sadness was predicted by their own negative emotion). These findings' contributions to the parent-child literature are discussed. 相似文献
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Jason Holt 《体育哲学杂志》2017,44(1):72-80
Stephen Mumford argues that aesthetic and moral values in sport are interdependent, focusing on cases where immorality taints beautiful performance. This interdependence thesis is insightful but, I argue, in need of refinement, as its normative implications are unclear and perhaps implausible (e.g. the Nazi aesthetics problem). I also challenge Mumford’s perspective on the infamous Dynamo Kiev death match. Whereas Mumford claims that the match’s morally oppressive circumstances detract from it so that ‘it was not something knowingly we should have admired aesthetically’, I argue that, on the contrary, and in light of what Mumford says about other cases, such circumstances actually enhance the game’s aesthetics such that it would be wrong not to appreciate it aesthetically. 相似文献
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Nicholas L. Holt Kacey C. Neely Linda G. Slater Martin Camiré Jean Côté Jessica Fraser-Thomas 《International review of sport and exercise psychology》2017,10(1):1-49
The overall purpose of this study was to create a model of positive youth development (PYD) through sport grounded in the extant qualitative literature. More specifically, the first objective was to review and evaluate qualitative studies of PYD in sport. The second objective was to analyze and synthesize findings from these studies. Following record identification and screening, 63 articles were retained for analysis. Meta-method analysis revealed strengths of studies were the use of multiple data collection and validity techniques, which produced high-quality data. Weaknesses were limited use of ‘named’ methodologies and inadequate reporting of sampling procedures. Philosophical perspectives were rarely reported, and theory was used sparingly. Results of an inductive meta-data analysis produced three categories: PYD climate (adult relationships, peer relationships, and parental involvement), life skills program focus (life skill building activities and transfer activities), and PYD outcomes (in personal, social, and physical domains). A model that distinguishes between implicit and explicit processes to PYD is presented. 相似文献
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Bret G. Range Susan Scherz Carleton R. Holt Suzanne Young 《Educational Assessment, Evaluation and Accountability》2011,23(3):243-265
The intent of this study was to assess the perceptions and actions of Wyoming principals concerning their role in supervising
and evaluating teachers. A survey was sent to all 286 principals in the state of Wyoming, of which, 143 returned surveys,
a response rate of 50%. Findings suggested that principals utilized supervisory behaviors more often than evaluative behaviors.
Elementary principals perceived their evaluative practices as significantly more prevalent than secondary principals. Furthermore,
principals indicated that their greatest frustrations in supervising teachers were time, the evaluation instrument, and teachers’
unwillingness to change. Additionally, findings suggested that Wyoming principals utilized classroom walkthroughs because
they provided a snapshot of teaching and provided a medium for providing feedback. In regards to developmental supervision,
principals indicated that novice teachers received much more supervision than veteran teachers. However, their reported use
of differentiated supervision only applied to teacher autonomy concerning professional development goals. Principals reported
that teachers had little input concerning the methods by which they were supervised. Finally, a majority of the Wyoming principals
felt that improvement plans were effective at changing mediocre teaching behaviors, but 40% were speculative that such plans
truly remediated poor teachers. 相似文献
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Glen Holt 《Public Library Quarterly》2013,32(2):179-183
No abstract available for this article. 相似文献
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