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751.
Tom Leeder 《Sport, Education and Society》2019,24(2):208-211
Mentoring has been frequently cited as a valuable method of professional development for sports coaches. Nonetheless, there is an absence of scholarly work within the sports coaching field which explores the process of learning to become a coach mentor in detail. ‘Learning to Mentor in Sports Coaching: A Design Thinking Approach’ addresses this very issue with an innovative approach towards mentor training and preparation. The focus of the book is to highlight how design thinking, a systematic method to transform problems into creative solutions, can be adopted to analyse and rewrite mentoring conversations to optimise learning for both mentors and mentees. The central argument of the book maintains that sports coach mentors share similar characteristics and traits to design thinkers in the ways in which they attempt to facilitate and support coach learning and development. This review seeks to examine the focus of the book and consider its contribution to the broader body of literature in this field. 相似文献
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Tom Clifford Oliver Bell Daniel J. West Glyn Howatson Emma J. Stevenson 《Journal of sports sciences》2017,35(8):812-819
This study examined the effects of beetroot juice on the repeated bout effect (RBE) to eccentric exercise. Twenty-nine recreationally active males performed two bouts of 100-drop jumps, separated by 14–21 days. Using a double-blind, independent groups design, participants consumed either a higher dose beetroot juice (H-BT; 250 ml, n = 10), a lower dose beetroot juice (L-BT; 125 ml, n = 9) or an isocaloric placebo (PLA; 250 ml, n = 10) for 3 days after bout 1; no drinks were consumed after bout 2. Maximal isometric voluntary contraction (MIVC), countermovement jump (CMJ), pressure-pain threshold (PPT) and creatine kinase (CK) were measured pre, post, 24, 48 and 72 h following both bouts. In bout 2, CMJ and MIVC recovered quicker and CK activity was attenuated (versus bout 1) (P < 0.05) in all groups, demonstrating an RBE. At 24 h post bout 1, MIVC was 84.1 ± 16.1, 83.6 ± 11.6, 79.7 ± 15.1% relative to baseline values in the H-BT, L-BT and PLA groups, respectively; at 24 h post bout 2, MIVC recovered to 90.7 ± 13.7, 92.9 ± 6.9, 87.8 ± 6.9, in the H-BT, L-BT and PLA groups, respectively. These findings suggest that supplementation with antioxidant-rich beetroot juice does not adversely affect acute adaptations to a bout of eccentric exercise. 相似文献
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Decision boundaries and receiver operating characteristic curves: new methods for determining accelerometer cutpoints 总被引:2,自引:1,他引:1
We propose and evaluate the utility of an alternative method (decision boundaries) for establishing physical activity intensity-related accelerometer cutpoints. Accelerometer data collected from seventy-six 11- to 14-year-old boys during controlled bouts of moderate- and vigorous-intensity field physical activities were assessed. Mean values and standard deviations for moderate- and vigorous-intensity activities were obtained and normal equivalents generated. The decision boundary (the point of intersection of overlapping distributions) was used to create a lower-bound vigorous-intensity cutpoint. Receiver operating characteristic (ROC) curves compared the sensitivity and specificity of the new cutpoint and mean values with the actual activity. There was a 96.5% probability that participants performing vigorous-intensity physical activity were accurately classified when using the decision boundary of 6700 counts per minute, in contrast to the 50% accurately classified when the mean value was used. Inspection of the empirical ROC curve indicated that the decision boundary provided the optimal threshold to distinguish between moderate and vigorous physical activity for this dataset. In conclusion, decision boundaries reduced the error associated with determining accelerometer threshold values. Applying these methods to accelerometer data collected in specific populations will improve the precision with which accelerometer thresholds can be identified. 相似文献
756.
- Digital preservation will never be a solved problem: it needs constant reinvention, and is going to become harder over time.
- Scholarship is changing and this is affecting what needs to be preserved and what preservation means to the future of knowledge discovery.
- The diversification of outputs means that knowledge exists in a network of contextual metadata, data, software, standards and publications—requiring multilateral management of this complex knowledge graph.
- Preservation demands new skills, technologies and resources from librarians, publishers, funders and institutions—and more joined-up thinking about archiving.
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