Parasympathetic activity delayed after self-paced exercise     

Lucas Rosiello Trojbicz  Mayara Vieira Damasceno  Leonardo Alves Pasqua  Arthur Fernandes Gáspari  Adriano Eduardo Lima-Silva 《European Journal of Sport Science》2018,18(6):842-850

The main purpose of this study was to compare the effect of the constant load and self-paced exercise with similar total work on autonomic control after endurance exercise. Ten physically active men were submitted to (i) a maximal incremental exercise test, (ii) a 4-km cycling time trial (4-km TT), and (iii) a constant workload test with identical total external work performed at 4-km TT. Gas exchange was measured throughout the tests, while blood lactate, heart rate, and heart rate variability (HRV) were measured during the passive recovery. Power output measured at the last lap (i.e. 3600–4000?m) of 4-km TT (316?±?89?W) was statistically higher than power output measured at the end of the constant workload exercise (211?±?42?W). The 4-km TT produced higher values of blood lactate concentration (8.8?±?2.1?mmol?L^?1) than the constant workload test (7.8?±?2.1?mmol?L^?1). The heart rate recovery measured at 60?s (constant workload: 37?±?7?bpm; 4-km TT: 30?±?6) and 120?s (constant workload: 57?±?9?bpm; 4-km TT: 51?±?9?bpm) were higher in the constant workload than in the self-paced exercise. The HRV (i.e. RMSSD30s) was statistically higher in the constant load exercise measured at 120, 420, 450, 480, 540, and 570?s than the self-paced exercise. These findings suggest that the autonomic control responses were dependent of the endurance exercise modalities, with parasympathetic activity being delayed after self-paced exercise, as evidenced by post-exercise heart rate indices.  相似文献   

A cross-sectional and prospective analyse of reallocating sedentary time to physical activity on children’s cardiorespiratory fitness     

Diana A. Santos  Adilson Marques  Cláudia S. Minderico  Ulf Ekelund 《Journal of sports sciences》2018,36(15):1720-1726

Cardiorespiratory fitness (CRF) is associated with health benefits in children, improving cardiac morphology, cardiovascular disease risk factors, and biological outcomes. This study aimed to examine the substitution effects of displaying a fixed duration of sedentary time with a fixed duration of physical activity (PA) at different intensities on children’s CRF. A total of 315 children (136 boys) were assessed (age: 10.6 ± 0.6 years old). Outcomes at baseline and follow-up (16-months) were CRF determined using a maximal cycle test and sedentary time and PA measured with accelerometers. Data were analysed by isotemporal substitution analyses estimating the effect of reallocating 30 min/day of sedentary time by light (LPA), moderate (MPA) and vigorous physical activity (VPA) on CRF. VPA was positively and significantly associated with CRF cross-sectional (β = 0.026, p < 0.001) and prospectively (β = 0.010, p < 0.001). Reallocating 30 min/day of sedentary time into VPA was positively cross-sectionally (β = 0.780, p < 0.001) and prospectively (β = 0.303, p < 0.05) associated with CRF. Conversely, relocating 30-minutes of sedentary time into 30 minutes of LPA and MPA was not associated with CRF. These results suggest that reallocating an equal amount of time from sedentary into VPA is cross-sectional and prospectively associated with a favourable CRF.  相似文献   

What Matters to Students’ Satisfaction: A Comparative Study between Vertical and Horizontal Transfer Students at 4-year Universities     

Yi Leaf Zhang  Frankie Santos Laanan  Maria Adamuti-Trache 《Community College Journal of Research & Practice》2018,42(12):878-892

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A model for the effective engagement of all stakeholders in engineering education and its pilot implementation     

Bárbara Filipa Casqueria Coelho Gabriel  João Alexandre Dias-de-Oliveira  Victor Fernando Santos Neto  António Gill D’Orey De Andrade-Campos 《European Journal of Engineering Education》2018,43(6):950-966

Methodologies for engineering learning and teaching (MELT) approach aims to enhance the attractiveness of education through science, technology, engineering and mathematics (STEM) among young people, while promoting awareness of future careers in these areas. To this end, students’ expectations are considered within university programmes, aiming to an increased engagement in STEM careers. To accomplish these goals, a new and integrated approach (MELT) is presented, involving the main stakeholders in both scientific education and society. An education framework is presented, providing guidelines for an improved collaborative approach to STEM education in the future. Results from the pilot implementation of MELT are presented, from a small-scale education parliament prototype. From these initial stage and results, it is seen that there is a need for a proper alignment of expectations from all involved stakeholders, concerning the engineering education towards society’s demands.  相似文献   

POSTCOLLEGE EARNINGS OF FORMER STUDENTS OF CALIFORNIA COMMUNITY COLLEGES: Methods, Analysis, and Implications     

Jorge R. Sanchez  Frankie Santos Laanan  W. Charles Wiseley 《Research in higher education》1999,40(1):87-113

In the wake of new federal and state mandates,community colleges are faced with demands to provideaccountability reports on student outcomes. With the useof the Employment Development Department Unemployment Insurance (EDD-UI) wage record data, along withthe California Community Colleges Chancellor's OfficeManagement Information System administrative database,this study sought to investigate the extent to which completing an associate degree andvocational certificate impacts the postcollege earningsof students. Based on information from 700,564 studentsfrom California community colleges during the 1992-93 academic year, the findings suggest thatstudents' gains from first year out of college to thirdyear out will differ by age group. Among economicallydisadvantaged students, a strong positive relationship exists between educational attainment andpostcollege gains. An important finding among vocationalstudents is that as women complete more education, theearnings gap closes between men and women. Finally, this study raises several policy implicationsand presents suggestions for future research.  相似文献   

Short-run effects of accountability pressures on teacher policies and practices in the voucher system in Santiago,Chile     

Gregory Elacqua  Matías Martínez  Humberto Santos  Daniela Urbina 《School Effectiveness & School Improvement》2016,27(3):385-405

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Ethics in educational technology research: Informing participants on data sharing risks     

Marc Beardsley  Patricia Santos  Davinia Hernández-Leo  Konstantinos Michos 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(3):1019-1034

Participants in educational technology research regularly share personal data which carries with it risks. Informing participants of these data sharing risks is often only done so through text contained within a consent form. However, conceptualizations of data sharing risks and knowledge of responsible data management practices among teachers and learners may be impoverished—limiting the effectiveness of a consent form in communicating such risks in a manner that adequately supports participants in making informed decisions about sharing their data. At two high schools participating in an educational research project involving the use of technology in the classroom, we investigate teacher and student conceptions of data sharing risks and knowledge of responsible data management practices; and introduce a communication approach that attempts to better inform educational technology research participants of such risks. Results of this study suggest that most teachers have not received formal training related to responsibly managing data; and both teachers and students see the need for such training as they come to realize that their understanding of responsible data management is underdeveloped. Thus, efforts beyond solely explaining data sharing risks in an informed consent form may be needed in educational technology research to facilitate ethical self-determination.  相似文献   

English language learning difficulty of korean students in a Philippine Multidisciplinary University     

Allan B. de Guzman  Emmanuel Jeric A. Albela  Deborah Rosalind D. Nieto  John Bernard F. Ferrer  Rior N. Santos 《Asia Pacific Education Review》2006,7(2):152-161

This qualitative study analyzed the English language learning difficulties of 13 purposively chosen Korean students relative to their sociolinguistic competence, motivation in using the English language, and cultural factors. Interview responses were transcribed, categorized and thematised according to saliency, meaning and homogeneity. The findings of the study disclosed that, on the whole, while the subjects never had the opportunity to use the English language in Korea, they use it almost everywhere in the Philippines. Their difficulties exist both in daily conversation and in the academic setting. Such difficulties are attributable to both the subjects’ and the Filipinos’ different entry points in the learning and use of English. Despite cultural barriers in communication, however, the Koreans studying in the Philippines are instrumentally motivated to learn the English language.  相似文献   

Role of the Undergraduate Student Research Assistant in the New Millennium   总被引：1，自引：0，他引：1  

Thais Dutra Nascimento Silva  Lúcia Cristina da Cunha Aguiar  Jaqueline Leta  Dilvani Oliveira Santos  Fernanda Serpa Cardoso  Lúcio Mendes Cabral  Carlos Rangel Rodrigues    Helena Carla Castro 《CBE life sciences education》2004,3(4):235-240

In this study, we analyze the contribution of the undergraduate student who participates in the process of generating scientific data and developing a research project using Brazilian research as an example. Historically, undergraduate students have performed the critical role of research assistants in developing countries. This aspect has been underappreciated as a means of generating scientific data in Brazilian research facilities. Brazilian educational institutions are facing major age-related generational changes among the science faculty within the next 5–10 yr. A lack of adequate support for graduate students leads to a concern that undergraduates will not be interested in choosing research assistant programs and, subsequently, academic research careers. To remedy this situation it is important to focus on ways to encourage new research careers and enhance university–industry collaborations.  相似文献   

Impact of a sustained Cooperative Learning intervention on student motivation     

Javier Fernandez-Rio  Naira Sanz  Judith Fernandez-Cando  Luis Santos 《Physical Education & Sport Pedagogy》2017,22(1):89-105

Background: Cooperative Learning has been recently defined as a true pedagogical model. Moreover, in a recent review Casey and Goodyear reported that it can help physical education promote the four basic learning outcomes: physical, cognitive, social and affective.

Purpose: The main goal was to investigate the impact of a sustained Cooperative Learning intervention on student motivation. The second goal was to assess students’ perceptions of the Cooperative Learning class climate. Finally, the third goal was to explore students’ feelings and thoughts after experiencing Cooperative Learning in physical education for an extended period of time.

Participants and settings: 249 students (grades 8–11) and 4 teachers enrolled in 4 different high schools agreed to participate. Each school administration allocated several class groups to each teacher based on its necessities. Therefore, intact physical education classes played a part in this research project. They were randomly distributed into an experimental group with 137 students (mean age 13.91?±?1.76 years), which experienced 3 consecutive cooperative learning units, and a comparison group with 112 students (mean age 13.41?±?1.25 years), which experienced a traditional teaching approach during the same length of time.

Research design: A pre-test, post-test, quasi-experimental, comparison group design was followed.

Data collection: Prior to and at the end of the intervention programme, all participating students were asked to complete a questionnaire, which included the Perceived Locus of Causality Scale and the subscale ‘Cooperative Learning’ of the Perceived Motivational Climate Questionnaire. At post-test, participants in the experimental group were also asked to: ‘Describe your feelings, your thoughts and your ideas on the three Cooperative Learning units that you just experienced in physical education’.

Data analysis: Quantitative data was analysed using SPSS 22.0, while MAXQDA 11 was used to assist with qualitative data management.

Findings: Quantitative data showed an increase in intrinsic motivation and identified regulation only in the experimental group. This group also increased its perceptions of a Cooperative Learning class climate. Qualitative data analysis of the students’ responses after experiencing Cooperative Learning on a sustained basis produced five major themes: cooperation, relatedness, enjoyment, novelty and disappointment. All these findings are in line with Vallerand's hierarchical model of motivation, where social factors (i.e. Cooperative Learning) influence psychological mediators (i.e. relatedness), which mediate over the different types of motivation (i.e. intrinsic motivation) and finally lead to different outcomes (i.e. enjoyment).

Conclusion: Cooperative Learning applied on a sustained basis can increase the most self-determined types of motivation, intrinsic motivation and identified regulation, in secondary education students. Students’ perceptions after experiencing Cooperative Learning for a long period of time reflected four positive ideas: cooperation, relatedness, enjoyment and novelty and a negative one: disappointment. Both the positive and the negative ideas should be considered when implementing Cooperative Learning in physical education, because students experience them.  相似文献