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171.
Courtney J. McGowan David B. Pyne Kevin G. Thompson John S. Raglin Mark Osborne Ben Rattray 《Journal of sports sciences》2017,35(15):1493-1499
This study investigated the effect of completing additional warm-up strategies in the transition phase between the pool warm up and the start of a race on elite sprint swimming performance. Twenty-five elite swimmers (12 men, 20 ± 3 years; 13 women, 20 ± 2 years, performance standard ~807 FINA2014 points) completed a standardised pool warm up followed by a 30-min transition phase and a 100-m freestyle time trial. During the transition phase, swimmers wore a tracksuit jacket with integrated heating elements and performed a dry land-based exercise routine (Combo), or a conventional tracksuit and remained seated (Control). Start (1.5% ± 1.0%, P = 0.02; mean ± 90% confidence limits) and 100-m time trial (0.8% ± 0.4%, P < 0.01) performances were improved in Combo. Core temperature declined less (?0.2°C ± 0.1°C versus ?0.5°C ± 0.1°C, P = 0.02) during the transition phase and total local (trapezius) haemoglobin concentration was greater before the time trial in Combo (81 µM ± 25 µM versus 30 µM ± 18 µM, P < 0.01; mean ± standard deviation) than in Control. Combining swimmers traditional pool warm up with passive heating via heated jackets and completion of dry land-based exercises in the transition phase improves elite sprint swimming performance by ~0.8%. 相似文献
172.
Brittany Pollentier Sonya L. Irons Courtney Manfredi Benedetto Anne-Marie DiBenedetto Dana Loton Rebecca Diane Seyler Mira Tych Roberta A. Newton 《Cardiopulmonary Physical Therapy Journal》2010,21(1):13-21
Purpose: To evaluate the reliability and validity of the six-minute walk test (6MWT) with respect to its ability to predict functional capacity in patients with chronic heart failure. Methods: A systematic review was performed via 8 databases to assess relevant English language full-text articles published from January 1, 1980 to October 31, 2009. Participant characteristics, interventions, reliability, validity, and predictive value for each article with respect to functional capacity as defined by peak VO2 levels were extracted and compared. Quality Assessment of Diagnostic Accuracy Studies (QUADAS) scores were determined for each study. Results: Fourteen studies met the selection criteria. Comparison of the studies investigating reliability shows that the 6MWT has good reproducibility. The 6MWT demonstrates moderate correlation with peak VO2 levels, and ability to predict VO2 (functional capacity) dependent on distance walked. Cut-off distances vary from 300 to 490 meters depending on the study; if total distance walked remains equal or less than these values, the 6MWT retains its strong predictive value. Conclusion: The 6MWT has good reliability, moderate validity, and a significant ability to predict functional capacity in patients with CHF who do not walk greater than 490 meters.Key Words: six-minute walk test, chronic heart failure, functional capacity, peak VO2 相似文献
173.
Deficits in numerical magnitude perception characterize the mathematics learning disability developmental dyscalculia (DD), but recent studies suggest the relation stems from inhibitory control demands from incongruent visual cues in the nonsymbolic number comparison task. This study investigated the relation among magnitude perception during differing congruency conditions, executive function, and mathematics achievement measured longitudinally in children (n = 448) from ages 4 to 13. This relation was investigated across achievement groups and as it related to mathematics across the full range of achievement. Only performance on incongruent trials related to achievement. Findings indicate that executive function in a numerical context, beyond magnitude perception or executive function in a non-numerical context, relates to DD and mathematics across a wide range of achievement. 相似文献
174.
Courtney Wombles Kelsey Grabeel David Petersen 《Journal of the Medical Library Association》2022,110(3):316
Objective:At many institutions, literature search services are an important aspect of health science librarianship. This exploratory study analyzes how the COVID-19 pandemic impacted the use of an academic hospital medical library''s literature search service.Methods:To evaluate the pandemic''s impact on literature searching at The University of Tennessee Medical Center''s Preston Medical Library, data were analyzed for changes from the year before the pandemic (March 1, 2019 to February 29, 2020) to the first year during the pandemic (March 1st, 2020 to February 28, 2021). This was accomplished using LibWizard, a library feedback and assessment application, to review literature search data during the two periods. Variables of interest included total searches, purpose of searches, affiliation of the searcher, and searches with a pandemic-related research question.Results:A 36.6% drop in literature search service usage was reported from the pre-pandemic year to the during-pandemic year. There was a 55.3% decrease in searches intended for research, as well as significant decreases in the number of searches requested by all patron affiliations. After March 2020, 10% of all searches concerned a COVID-related topic.Conclusion:The overall decrease in literature search requests, decrease in research searches, decrease in searches among all patron affiliations, and increase in searches on a COVID-related topic suggest that healthcare worker and institutional priorities changed during the pandemic. The results revealed research interests during the first year of the pandemic, as well as an overall change in library service functionality. 相似文献
175.
AbstractMany women creative practice-led researchers appear inhibited by a number of factors directly connected to their gender. This article discusses these factors, including the culture of visual arts professional practice, the circumstances surrounding women postgraduate students and unproductive self-theories about intelligence and creativity. A number of feminist strategies are discussed as potential interventions that may assist women creative practice-led researchers and their supervisors to reap more personal and professional rewards from their postgraduate research. 相似文献
176.
Courtney Weida 《Teaching Artist Journal》2015,13(1):5-13
The craft of handmade books examined as the site of collaborations around art and literacy. 相似文献
177.
Rolla E. Lewis Courtney Herb Erin Mundy-Mccook Natalie Capps-Jenner 《Educational Action Research》2019,27(1):75-90
ABSTRACTThis article is a collaboration involving a professor and three graduate students. Together, they explore lifescaping action research pedagogy guided by the participatory inquiry process. Since the lesson taught is not the lesson learned, the first author presents a perspective about teaching PIP followed by the graduate students’ collective responses enacting what they learned in three different school settings. 相似文献
178.
Maintenance behaviors play an important role in sustaining relational states, especially within committed romantic relationships. Limited research, however, has considered media portrayals of these behaviors. From the framework of social cognitive theory, this content analysis examined relational maintenance behaviors portrayed by committed romantic couples (heterosexual, gay, and lesbian) on prime-time network television. The frequency of maintenance behaviors (positivity, understanding, self-disclosure, assurances, relationships talks, tasks, and networks) varied by type, valence, program genre, and couple type (married/civil union or cohabitating). Results indicated that comedies featured more frequent relationship maintenance behaviors than dramas. In addition, comedies exhibited more frequent negative maintenance behaviors than dramas. Differences also existed between couple regarding the types of maintenance behavior exhibited. No sex differences in maintenance behaviors were observed between male and female characters. 相似文献
179.
Steven J. Courtney 《牛津教育评论》2013,39(6):799-818
The number and range of school types in England is increasing rapidly in response to a neoliberal policy agenda aiming to expand choice of provision as a mechanism for raising educational standards. In this paper, I seek to undertake a mapping of these school types in order to describe and explain what is happening. I capture this busy terrain from different perspectives: legal status; curricular specialism; pupil selection; types of academy; and school groupings. The mapping highlights the intersections between the current reform agenda and the historical diversity within the English school system to show the dialogue between past and present. Borrowing the geological metaphors of faulting and folding, I argue that long-established school types are not buried under sedimentary layers of reform, but are thrust into the present where they are discursively re-imagined through neoliberalism. Finally, I conceptualise the landscape holistically through the lenses of locus of legitimacy and branding, where I argue that current structural diversification policies enable the enactment of interests other than educational through transferring responsibility for education and related assets away from public and towards corporatised or religious actors and institutions. 相似文献
180.
In a study involving 164 children ages 3 to 14, the effectiveness of incorporating health information disclosures into actual television commercials was tested. Results indicated that most children were able to recall and make sense of such disclosures. 相似文献