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Sajith U. Marasingha-Arachchige Jacobo . Rubio-Arias Pedro E. Alcaraz Linda H. Chung 《运动与健康科学(英文)》2022,11(3):376-392
BackgroundThere is controversial evidence regarding the effect of acute resistance exercise (ARE) on heart rate variability (HRV) parameters, which indicates the activities of the cardiac autonomic nervous system. The aim of this study was to perform a systematic review and meta-analysis of the literature on the effect of ARE on HRV parameters and identify its possible moderating factors.MethodsThe PubMed–Medline, Web of Science, SPORTDiscus, and Cochrane Library databases were searched. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) declaration was followed, and the methodological quality of the studies was evaluated. The level of significance was set at p ≤ 0.05. Twenty-six studies met the inclusion criteria. Main effect analyses between pre- and post-test interventions demonstrated an increase in normalized units low frequency (p < 0.001; standardized mean difference (SMD) = 0.78; 95% confidence interval (95%CI): 0.46‒1.11) and low frequency/high frequency ratio (p < 0.001; SMD = 0.82; 95%CI: 0.64‒0.99) and a decrease in standard deviation of the normal-to-normal (NN) interval (p < 0.001; SMD = –0.58; 95%CI: –0.85 to –0.30), root mean square of the successive differences (p < 0.001; SMD = –1.01; 95%CI: –1.29 to –0.74), and normalized units high frequency (p < 0.001; SMD: –1.08; 95%CI: –1.43 to –0.73) following ARE in healthy individuals range: 15 ± 1 to 48 ± 2 years; mean ± SD).ResultsThere were differences between the subgroups in the number of sets used in an exercise (p = 0.05) for root mean square of the successive differences, as well as for exercise intensity (p = 0.01) and rest between sets (p = 0.05) for normalized units high frequency. Interestingly, there were differences between the subgroups in training volume for root mean square of the successive differences (p = 0.01), normalized units high frequency (p = 0.003) and normalized units low frequency (p = 0.02).ConclusionOverall, there was a withdrawal of cardiac parasympathetic and activation of cardiac sympathetic modulations following ARE, and these changes were greater with higher training volume ∼30 min after ARE in healthy individuals. Furthermore, the number of sets, intensity, and rest between sets affected HRV parameters. However, gender, body mass index, and training status did not influence the changes in HRV parameters as a response to ARE. 相似文献
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Julie Kunselman Christopher Hensley Richard Tewksbury 《Journal of Criminal Justice Education》2013,24(1):17-35
Mentoring academics is an integral step in aiding their professional development. This commitment to mentoring is discussed by three criminal justice professors, each in a distinct phase of his career. Three distinct mentoring models are discussed: (1) continuing a mentoring relationship with a dissertation advisor or other mentor from graduate school, (2) developing a new mentoring relationship at an academic institution where one receives a position, and (3) developing a new mentoring relationship with an academic in the same field, but at a totally separate institution. The authors describe their advancement in the field of criminal justice as it relates to the existence of a mentoring model, focusing on identifying the strengths of each model. 相似文献
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Richard Rymarz 《British Journal of Religious Education》2005,27(1):53-63
In 2002 a paper entitled Writing Church‐sponsored Religious Education Textbooks by Engebretson was published in the British Journal of Religious Education. This paper reported on and analysed some aspects of the development, by the Catholic Archdiocese in Melbourne, Victoria, of a series of religious education textbooks to be used in all Catholic schools in the Archdiocese. The paper contextualised the series, entitled To Know, Worship and Love, in the field of literature on textbooks in the classroom. It discussed some local issues that had led to the decision to produce religious education textbooks, explained and justified the choice of content for the middle secondary books, and discussed the presentation of the books. In the final section of the paper, it was indicated that future papers would report on the evaluation of the series and its implementation, as a three‐stage research project was completed. The first stage of the research project collected responses from teachers and Religious Education Co‐ordinators (RECs) to the Years 7 and 9 books, that is those books written for students of 12 and 14 years respectively. This paper discusses a significant finding that emerged from this stage of the research, that is the relationship between textbook use and level of qualifications and experience in the teaching of religious education. This major finding is of interest in relation to a range of educational issues in religious education, including the role and use of resources, the mandation of resources by Church hierarchies, creativity and flexibility in teaching religious education, teacher confidence and experience and the important issue of content knowledge. Further papers will explore evaluations of the Years 8 and 10 books, and overall issues that have emerged from this Archdiocesan curriculum project. 相似文献
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This study examines the debates and discussions surrounding the Korean government's Me2Day, the largest social networking and microblogging site in the country used by 26 government bureaus, including the Blue House. Me2Day users post messages composed of up to 150 characters and establish links with other users through multimedia-based information and knowledge obtained from their browsers, desktop computers, e-mail messages, and mobile phones. This study provides a better understanding of the characteristics and structures of cyberspace communication between the Korean government and citizens. The results indicate that although each bureau had different goals in terms of using Me2Day, users were more likely to use the service if their bureau actively posted messages or responded to user comments. Users tended to have critical attitudes toward the Korean government when they were allowed to freely post messages and share information. 相似文献
169.
Richard Lindheim 《广播与电子媒介杂志》2013,57(2):183-185
The ever‐increasing length of broadcast coverage of the orbital flights of our Astronauts is only one example of the ever increasing use of the radio and television media to capture the “here” and “now.” Although audiences are large for this sort of programming, it is unlikely that it will be large enough to provide sufficient revenue to pay for the enormous cost of major special events coverages. Richard Lindheim, a graduate student in the Department of Telecommunications of the University of Southern California, has performed a pilot investigation which leads to the conclusion that some of broadcastings effort at the coverage of special events may be redundant. 相似文献
170.
The effectiveness of information and communication technology on the learning of written English for 5- to 16-year-olds 总被引:1,自引:0,他引:1