Effects of medium- and long-distance running on cardiac damage markers in amateur runners: a systematic review,meta-analysis,and metaregression     

Jacobo . Rubio-Arias  Luis Andreu  Luis Manuel Martínez-Aranda  Alejandro Martínez-Rodríguez  Pedro Manonelles  Domingo J. Ramos-Campo 《运动与健康科学(英文)》2021,10(2):192-200

BackgroundTo finish an endurance race, athletes perform a vigorous effort that induces the release of cardiac damage markers. There are several factors that can affect the total number of these markers, so the aim of this review was to analyze the effect of endurance running races on cardiac damage markers and to identify the factors that modify the levels of segregation of these cardiac damage markers.MethodsA systematic search of PubMed, Web of Science, and the Cochrane Library databases was performed. This analysis included studies where the acute effects of running races on cardiac damage markers (troponin I and troponin T) were analyzed, assessing the levels of these markers before and after the races.ResultsThe effects of running races on troponin I (mean difference = 0.0381 ng/mL) and troponin T (mean difference = 0.0256 ng/mL) levels were significant. The ages (R² = 14.4%, p = 0.033) and body mass indexes (R² = 14.5%, p = 0.045) of the athletes had a significant interaction with troponin I. In addition, gender, mean speed, time to finish the race, and type of race can affect the level of cardiac damage markers.ConclusionEndurance running races induce the release of cardiac-damage markers that remain elevated for at least 24 h after the races. In addition, young male athletes with high body mass indexes who perform races combining long duration and moderate intensity (i.e., marathons) release the highest levels of cardiac damage markers. Physicians should take into consideration these results in the diagnosis and treatment of patients admitted to the hospital days after finishing endurance running races.  相似文献   

Attitudes towards sexuality information for adolescents: what parents should and should not say     

Claudia Pineda Marin  Maria Teresa Munoz Sastre  Diego Alfonso Murcia  Mateo Bernal Castañeda  Angie Briceño Hernández 《Sex education》2019,19(5):582-596

The goal of this study was to investigate the attitudes of Colombians with respect to what can and what must not be said to young people of different ages and genders regarding sexuality. A convenience sample of 329 adults, aged 18–64 years, living in Bogotá participated in the study. They were presented with a set of 36 vignettes describing situations in which either a young girl or a young boy seemed to be concerned about sexuality and sexual relationships. Each scenario contained three items of information: the child’s gender, age and the parent’s decision (e.g. not to say anything regarding sexuality). Through cluster analysis, seven qualitatively different sets of attitudes were found. The five most common ones were: (i) it is never appropriate to talk about sexual matters (6%); (ii) delegate this responsibility to the school nurse (4%); (iii) provide incomplete information restricted to the biology of sexuality (11%); (iv) provide comprehensive information but with a recommendation of abstinence (28%); and (v) provide comprehensive information and a recommendation of pre-marital sexual experience (36%). Although it was expected that attitudes would vary as a function of the young person’s gender and age, such variations proved to be limited in their extent.  相似文献   

EXPLORING HIGH-ACHIEVING STUDENTS’ IMAGES OF MATHEMATICIANS     

Mario Sánchez Aguilar  Alejandro Rosas  Juan Gabriel Molina Zavaleta  Avenilde Romo-Vázquez 《International Journal of Science and Mathematics Education》2016,14(3):527-548

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Attachment in deaf mothers and their children     

Leigh IW  Brice PJ  Meadow-Orlans K 《Journal of deaf studies and deaf education》2004,9(2):176-188

In attachment research, there has been a growing interest in how adults conceptualize their relationships with their own parents as well as in the transmission of attachment status from parent to child and the variables that influence that transmission. The primary goal of the present study was to examine the transmission of attachment from deaf mother to child. Adult Attachment Interviews were collected on 32 deaf women and Strange Situation Procedure data were obtained from their children. While the distribution of deaf mother attachment classifications was similar to that found with hearing samples, the concordance between mother and child in terms of attachment status was lower than in hearing samples. Having a deaf parent did not affect a deaf adult's attachment status. Post hoc analyses suggested a trend towards a dismissing stance in attachment relationships. Results are discussed in terms of variables affecting attachment status as well as the transmission of attachment.  相似文献   

Reading Comprehension and Predictability Effects on Sentence Processing: An Event‐Related Potential Study     

ngel Javier Tabullo  Diego Shalom  Yamila Sevilla  Carolina Andrea Gattei  Luis París  Alejandro Wainselboim 《Mind, Brain, and Education》2020,14(1):32-50

Electrophysiology studies have identified two event‐related potentials that are modulated by predictive processes during language comprehension: the N400 and a frontal positivity. The N400 is smaller when words are presented within highly restrictive sentences, indicating reduced lexical retrieval costs. Violations of strong predictions generate larger frontal positivities, possibly reflecting inhibitory processes. More skilled comprehenders may exhibit enhanced predictive processing, but this possibility has seldom been investigated with event‐related potentials (ERPs). We analyzed the association between predictability ERP modulations and reading comprehension abilities. Twenty‐four undergraduate students were exposed to strongly and weakly constraining sentences, ending with an expected or unexpected final word. Their comprehension skills were assessed with a cloze task. Better comprehenders showed smaller N400s for expected words, and larger posterior positivities for unexpected endings, in strongly constraining contexts. These effects correlated with reading comprehension scores. The results suggest that better comprehenders take more advantage of predictions to reduce retrieval costs, and allocate more resources to postlexical integration processes.  相似文献   

The number needed to read-a new measure of journal value     

Toth B  Gray JA  Brice A 《Health information and libraries journal》2005,22(2):81-82

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The internet as a celestial TiVo: What can we learn from cable television adoption?     

Stan J. Liebowitz  Alejandro Zentner 《Journal of Cultural Economics》2016,40(3):285-308

It appears that the Internet is soon going to fulfill its potential to become a giant on-demand repository of television shows (and movies) available asynchronously, greatly increasing the variety of shows available at a moment in time. As companies such as Netflix and Hulu increase their activities in this sphere, there are many unanswered questions about the impacts of this transition. In this paper, we attempt to foretell the impact of Internet-induced increased variety on the amount of time individuals devote to viewing television. We use cable and satellite television’s impact on viewing as a proxy for the likely impact that future Internet transmission of programs will have. Using country-based panel data going back to the mid-1990s, we find that the increased variety brought about by cable and satellite has had virtually no impact on the amount of time devoted to television viewing. We discuss the import of this finding for Internet business models of television transmission.  相似文献   

The Structure of Peers: The Impact of Peer Networks on Academic Achievement     

Berthelon  Matias  Bettinger  Eric  Kruger  Diana I.  Montecinos-Pearce  Alejandro 《Research in higher education》2019,60(7):931-959

Research in Higher Education - Peer effects are an important contributing factor in the learning process. Most of the prior literature on peer effects focuses on the characteristics of peers rather...  相似文献   

The politics of educational success: a realist evaluation of early school leaving policies in Catalonia (Spain)     

Aina Tarabini  Marta Curran  Alejandro Montes  Lluís Parcerisa 《Critical Studies in Education》2018,59(3):364-381

The objective of the article is to examine what is ‘taken for granted’ in the policies designed to combat Early School Leaving (ESL) in Catalonia, identifying their implicit ontologies, causal assumptions and logics of action. In order to do so, the realist evaluation is applied. Specifically, this methodology has been applied to compare the discourses, priorities and policies of two key agents in defining and implementing policies to combat ESL in Catalonia: the Catalan Department for Education (Regional Government body) and the Barcelona Education Consortium (Local Government body). In each case, systematic documentary analysis has been conducted as well as in-depth interviews with educational experts and policymakers. The results of the analysis allows opening up the black box of the political priorities defined by this two political agents, identifying two highly controversial logics to understand educational success and to consequently address ESL  相似文献   

Encyclopedia of information technology curriculum integration – Edited by Lawrence A Tomei     

Dr Alejandro Armellini 《British journal of educational technology : journal of the Council for Educational Technology》2011,42(2):E48-E49

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