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排序方式: 共有193条查询结果,搜索用时 15 毫秒
101.
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Sarah C. Ullrich-French Thomas G. Power Kenn B. Daratha Ruth C. Bindler Michael M. Steele 《Journal of sports sciences》2013,31(11):1189-1196
Abstract Physical fitness performance is an important health correlate yet is often unrelated to sedentary behaviour in early adolescence. In this study, we examined the association of sedentary behaviour (i.e. screen time) with weight-related health markers and blood pressure, after controlling for cardiorespiratory fitness performance. American middle school students (N = 153, 56% females) aged 11–15 years (mean 12.6 years, s = 0.5) completed assessments of cardiorespiratory fitness performance, screen time, weight status (BMI percentile, waist-to-height ratio), and blood pressure. Multivariate analysis of covariance, controlling for cardiorespiratory fitness performance, found those who met the daily recommendation of 2 h or less of screen time (n = 36, 23.5%) had significantly lower BMI (p < 0.05) and systolic blood pressure (p < 0.01) compared with those who exceeded this recommendation. Findings suggest specific intervention programmes may be designed to target both cardiorespiratory fitness and sedentary behaviours to maximize early adolescent health because these behaviours are likely to have unique and independent effects on youth health markers. 相似文献
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This article investigates contemporary cultural policy reforms enabled by paid digital media distribution services, taking the case of the integration of Spotify into the Swedish public media system. Specifically, it reflects on the conflicts arising over the prioritization of digital distribution over cultural preservation, during the gradual substitution of the Spotify digital services for the services provided by the traditional material media archive, the Grammofonarkivet. It considers the factors influencing changes in the Swedish cultural policy environment and the nature of the complaints and human rights claims made by employees of the Grammofonarkivet to UNESCO regarding its structural transformation. It also postulates a “Spotification” model of public service media emerging in Sweden but potentially affecting other countries with public media systems served by traditional media archives. 相似文献
105.
Giuseppe Coratella Stefano Longo Emiliano Cè Eloisa Limonta Susanna Rampichini Angela Valentina Bisconti 《Research quarterly for exercise and sport》2018,89(3):347-353
Purpose: The present study aimed to investigate whether or not eccentric-only training induced different sex-related adaptations in vastus lateralis muscle architecture and knee extensors strength. Methods: Thirteen healthy women and 13 healthy men were recruited. Vastus lateralis pennation angle, fascicle length, and muscle thickness, as well as knee extensors eccentric, isometric, and concentric peak torque and one-repetition maximum (1RM) were measured. Both women and men underwent a unilateral iso-load knee-extension eccentric-only training with 120% of the concentric 1RM, consisting of 4 sets × 10 repetitions twice a week for a total of 8 weeks. Results: Pennation angle increased in women (+ 14%, 95% CI [10, 17], effect size [ES] = 1.54) but not in men (+ 5%, 95% CI [?1, 11], ES = 0.28), while fascicle length increased in both women (+ 7%, 95% CI [4, 10], ES = 1.02) and men (+ 12%, 95% CI [8, 16], ES = 1.82) and muscle thickness increased in women (+ 13%, 95% CI [8, 18], ES = 1.11) and men (+ 11%, 95% CI [7, 15], ES = 0.89). In both women and men, eccentric (18%, 95% CI [11, 25], ES = 0.96, and 16%, 95% CI [9, 22], ES = 0.82, respectively), isometric (17%, 95% CI [11, 23], ES = 0.53, and 17%, 95% CI [10, 24], ES = 0.62), concentric (12%, 95% CI [7, 16], ES = 0.49, and 9%, 95% CI [5, 13], ES = 0.42) peak torque and 1RM (10%, 95% CI [6, 14], ES = 0.53, and 10%, 95% CI [5, 15], ES = 0.50) similarly increased after the intervention. Conclusions: This study showed that the adaptations in strength are not sex-dependent, but the increases in pennation angle only in women suggest that the changes in muscle architecture may depend on sex. 相似文献
106.
B F Steele 《Child abuse & neglect》1986,10(3):283-291
107.
A two-year study designed to integrate the medical communication skills and library skills curricula at the University of the West Indies, St. Augustine is reported. Given that an integrated approach to curriculum development offers benefits to learners and staff. The objective of this study was to explore the feasibility of implementing this approach among Year 1 pre-clinical students in 1997 and 1998. Student performance on an essay question that integrated the application of students' knowledge of written communication and library skills in a final examination performance was assessed. Pre- and post-test results of students' library skills were compared within each year. anova analysis indicated that there was a significant increase in mean scores from pre-test to post-test which suggests that students performed better on a test of their knowledge and application of library skills after instruction, but the unavailability of a control group made this finding inconclusive. The findings are discussed in relation to practical and intellectual issues in curriculum integration. It is concluded that this type of curriculum integration is feasible, creates linkages in the curriculum and does not increase demand on student time. 相似文献
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Susanna Pantas Sean A. Miller Shanti J. Kulkarni 《Journal of Teaching in Social Work》2017,37(2):185-198
Social work students created a community activism project to raise awareness about trauma prevalence and impact. Trauma theory describes silencing as the mechanism that hinders individual and community healing. Therefore, students sought to create an interactive opportunity to heighten trauma visibility on campus. They created a physical mailbox and invited community members respond to the prompt, “I am a survivor because …” and to read others’ responses. Through the project, students were able to document participants’ trauma experiences, increase community trauma awareness, and enhance their own learning. Moreover, the authors believe that this assignment successfully fostered student integration of micro and macro social work skills. 相似文献
110.
Gender policies in sports have expanded considerably in most countries in recent decades. Nevertheless, the implementation of these policies in sports organizations is by no means an automatic process. This article explores what happens when gender equity policies are applied in an university sports organization. Participatory action research over a four-year period was developed by the authors to increase the participation of women, and it also aimed to explore the perceptions and thoughts of key actors regarding equity actions. The analysis shows the participation numbers in the specific promotional campaign and reveals a wide range of responses among staff, ranging from enthusiasm and interest to resistance and fear. Gender equity actions often encounter resistance which cannot, and should not, be ignored. This article highlights certain forms of resistance that proposals of this kind should be prepared for. 相似文献