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Carlos Janssen Gomes da Cruz Guilherme Eckhardt Molina Luiz Guilherme Grossi Porto Luiz Fernando Junqueira Jr 《Research quarterly for exercise and sport》2017,88(3):371-376
Purpose: In a cross-sectional study design, we evaluated the resting heart rate (HRbaseline) and exercise and postexercise stress test-related chronotropic responses in male practitioners of recreational ballroom dancing (BD; n = 25, Mage = 26.6 ± 6.1 years) compared to a control group of insufficiently active nondancers (CG; n = 25, Mage = 25.9 ± 4.5 years). Method: All participants underwent a submaximal exercise test. At 85% of the maximal predicted HR, the recovery protocol was started, and heart rate recovery (HRR) was recorded during 1-min intervals for 5 min. Results: Compared with CG, BD showed lower HRbaseline (70 beats per minute [bpm] vs. 62 bpm, respectively, U = 143, p < .05, ES = .46), lower preexercise HR (94 bpm vs. 86 bpm, U = 157, p < .05, ES = .42), longer exercise test duration (346 s vs. 420 s, U = 95.5, p < .05, ES = .59), and higher HRR for 5 min postexercise (U = 1.29–1.89, p < .05, ES = .33–.50) as follows: 1st min (32 bpm vs. 40 bpm), 2nd min (45 bpm vs. 53 bpm), 3rd min (51 bpm vs. 58 bpm), 4th min (55 bpm vs. 59 bpm), and 5th min (59 bpm vs. 63 bpm). The coefficient of HRR from the 1st min to the 5th min postexercise was similar in both groups (U = 229–311, p > .05, ES = < .10–.22). Conclusion: Heightened cardiovascular functional status characterized by favorable enhanced chronotropic dynamics appears to occur in practitioners of recreational ballroom dancing, which suggests that this modality of exercise may result in health benefits. 相似文献
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Berman BA Eckhardt EA Kleiger HB Wong G Lipton DS Bastani R Barkin S 《American annals of the deaf》2000,145(3):245-255
Formidable barriers hinder use of standard data collection methods among deaf youth. Culturally and linguistically sensitive data collection strategies are needed to identify the unmet health and programming needs of this population. Unfortunately, researchers often fail to describe the issues involved in developing such targeted methods. The authors describe development of a culturally appropriate data collection instrument for a study of tobacco-related knowledge, attitudes, and practices among deaf youth. The instrument uses interactive multimedia technology to administer a questionnaire translated into the primary languages used by the Deaf. The procedures taken to accommodate this technology to these languages and to Deaf culture are described. This process yielded useful insights with respect to data collection not only among the Deaf, but among other frequently overlooked and underserved populations as well. 相似文献
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Catherine Landreth Gladys M. Gardner Bettie C. Eckhardt Anne D. Prugh 《Journal of Experimental Education》2013,81(2):65-91
The theoretical basis for the Analysis of Means Technique is discussed. In addition, a simplified working procedure is outlined, step-by-step for an actual problem. The data for the problem are analyzed by the analysis of means techniques, which compares differences between means instead of population variances estimates. The data are also analyzed by the analysis of variance technique. The conclusions reached by both techniques are the same. The graphical representation of the ANOM is helpful in understanding data. The ANOM technique is usually used in conjunction with the analysis of variance, either as an initial analysis of data or to augment the analysis of variance. 相似文献
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Eckhardt Fuchs 《Paedagogica Historica: International Journal of the History of Education》2014,50(6):737-755
This article seeks to contribute to the institutional history of the discipline of history of education by examining the publication strategies and the associated institutional practices of the International Standing Conference for the History of Education, the international organisation representing those working in the field, and Paedagogica Historica, the most significant journal in the discipline internationally, as well as illuminating the interactions and interrelationships between the two institutions. It will focus on the early 1990s, due to the fact that, at the end of the 1980s, both institutions found themselves facing crises which led to profound and far-reaching processes of reform, which in their turn engendered a rapprochement and, eventually, cooperation between the two institutions. After providing brief overviews of the development of both ISCHE and Paedagogica Historica up to and into the 1980s, the article will concentrate in its third part on the long-lasting – commencing after ISCHE’s foundation in 1979 – and multi-faceted relationship between the two, both of which made significant contributions to the emergence of an international academic community of those working in history of education. The article will additionally explore the range of strategies used by the two institutions in relation to the publication of findings in the field and the institutional practices of cooperation with and demarcation from one another exercised by ISCHE and Paedagogica Historica. 相似文献
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Petra Stanat Michael Becker Jürgen BaumertOliver Lüdtke Andrea G. Eckhardt 《Learning and Instruction》2012,22(3):159-170
Immigrant students’ school success is often hampered by limited second language (L2) proficiency, yet the effectiveness of different approaches to L2 support is unclear. Using a summer camp setting, we tested effects of (1) implicit support focusing on meaning of language by engaging students in language-intensive activities without drawing their attention to rules (operationalization: theatre program) and (2) combined implicit and explicit support focusing students’ attention on both meaning and form of language (operationalization: theatre program and instruction in German as L2). A baseline group received no support. N = 149 third-graders with German as L2 participated. There was no effect for the implicit condition on L2, yet children in the combined condition performed significantly better in grammar and reading after the treatment than the baseline group. The difference for vocabulary did not reach significance. Three months later, a significant effect for the combined condition was only found for reading. 相似文献
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Berman BA Bernaards C Eckhardt EA Kleiger HB Maucere L Streja L Wong G Barkin S Bastani R 《American annals of the deaf》2006,151(4):441-451
College students' tobacco use poses a significant public health problem. Effective intervention requires understanding of this behavior among race/ethnic, cultural, and linguistic collegiate subgroups, including deaf and hard of hearing collegians. Findings from a first-ever tobacco-related survey among this understudied population are reported. The authors used written questionnaires and the Interactive Video Questionnaire, a multimedia computer technology developed for use with the deaf and hard of hearing, to interview 241 volunteers on seven California college campuses. They found lower self-reported current smoking prevalence (14.5%) relative to collegians in the general population, but considerable ever smoking (65.1%) and multiple types of tobacco use (37.3%). The authors report on factors associated with tobacco use and on students' exposure to cigarette marketing, gaps experienced in receipt of antitobacco messages and services, and students' antitobacco intervention recommendations. Limitations of the research are described, including possible underreporting of participants' tobacco use. 相似文献
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The study examined the effects of two different instructional interventions as support for scientific discovery learning using computer simulations. In two well-known categories of difficulty, data interpretation and self-regulation, instructional interventions for learning with computer simulations on the topic “ecosystem water” were developed and tested using a sample of 124 eighth graders in science classes. The results demonstrate the effectiveness of instructional support for domain-specific factual, conceptual, and procedural knowledge acquisition. Students who received either only instructional support for data interpretation or only for self-regulation achieved the highest learning outcomes. However, a combination of instructional support for data interpretation and self-regulation seemed detrimental for knowledge acquisition. Students who received instructional interventions for both data interpretation and self-regulation also showed the highest values of perceived cognitive load. High cognitive load could be a reason for why a combination of particular instructional interventions does not lead to the expected positive learning outcomes. 相似文献
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Berman BA Streja L Bernaards CA Eckhardt EA Kleiger HB Maucere L Wong G Barkin S Bastani R 《American annals of the deaf》2007,152(3):344-355
Little research has focused on tobacco use among deaf and hard of hearing youth. Findings are reported from a first-ever tobacco-related survey, completed by 226 California middle and high school students using either a written questionnaire or the Interactive Video Questionnaire, an interactive multimedia computer video technology. Rates for current smoking (3.1%), ever smoking (45.1%), and multiple types of tobacco use (10.6%) were found to be lower than among high school students generally; mainstreamed students were likelier to have ever tried smoking than their deaf school peers (57.8% vs. 31.8%). No statistically significant associations were found between ever smoking and race/ethnicity, gender, school performance, or prelingual vs. postlingual deafening; a quarter of the sample experienced occasional peer pressure to use tobacco products. Tobacco use covariates, exposure to cigarette marketing and antismoking programming, and tobacco education needs of deaf and hard of hearing youth are discussed. 相似文献