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1.
Wendell Arthur Lopes Neiva Leite Larissa Rosa da Silva Diego Trevisan Brunelli Arthur Fernandes Gáspari Rosana Bento Radominski 《Journal of sports sciences》2016,34(20):1902-1912
The objective of the present study was to investigate the effects of combined training without caloric restriction on inflammatory markers in overweight girls. Thirty-three girls (13–17 years) were assigned into overweight training (n = 17) or overweight control (n = 16) groups. Additionally, a normal-weight group (n = 15) was used as control for the baseline values. The combined training programme consisted of six resistance exercises (three sets of 6–10 repetitions at 60–70% 1 RM) followed by 30 min of aerobic exercise (walking/running) at 50–80% VO2peak, performed in the same 60 min session, 3 days/weeks, for 12 weeks. Body composition, dietary intake, aerobic fitness (VO2peak), muscular strength (1 RM), glycaemia, insulinemia, lipid profile and inflammatory markers (C-reactive protein, interleukin-6, tumour necrosis factor-alpha, interleukin-10, leptin, resistin and adiponectin) were measured before and after intervention. There was a significant decrease in body fat (P < 0.01) and increase in fat-free mass (P < 0.01), VO2peak (P < 0.01), 1 RM for leg press (P < 0.01) and bench press (P < 0.01) in the overweight training group. Concomitantly, this group presented significant decreases in serum concentrations of C-reactive protein (P < 0.05) and leptin (P < 0.05), as well as in insulin resistance (P < 0.05) after the experimental period. In conclusion, 12 weeks of combined training without caloric restriction reduced inflammatory markers associated with obesity in overweight girls. 相似文献
2.
Laurinda Leite 《Science & Education》2002,11(4):333-359
One of the aspects science education should focus on is learning about science.Achieving a good understanding of this aspect requires, among others, the useof the history of science. There is some evidence that teachers rely heavily ontextbooks to select the historical content they include in their physical sciencelessons. On the other hand, Portuguese physical science syllabuses are not veryexplicit about the teaching of the science. Therefore, textbook writers may notfeel compelled to give enough importance to the history of science in their textbooksand consequently little history of science will pervade the science lessons. This paperaims to present a theoretically grounded checklist developed for analysing the historical content of science textbooks. Five physics textbooks that are different with regard to historical content were analysed. Inter-ratter agreement was used in order to validate the checklist. The results of the analysis show that the checklist is able to reveal differences among textbooks and that the historical content included in the textbooks is hardly able to give students an adequate image of science and scientists' work. 相似文献
3.
The aim of this study was to assess the effects of a single session of cold or thermoneutral water immersion after a one-off match on muscular dysfunction and damage in soccer players. Twenty-male soccer players completed one match and were randomly divided into cryotherapy (10 min cold water immersion, 10°C, n = 10) and thermoneutral (10 min thermoneutral water immersion, 35°C, n = 10) groups. Muscle damage (creatine kinase, myoglobin), inflammation (C-reactive protein), neuromuscular function (jump and sprint abilities and maximal isometric quadriceps strength), and delayed-onset muscle soreness were evaluated before, within 30 min of the end, and 24 and 48 h after the match. After the match, the players in both groups showed increased plasma creatine kinase activity (30 min, 24 h, 48 h), myoglobin (30 min) and C-reactive protein (30 min, 24 h) concentrations. Peak jump ability and maximal strength were decreased and delayed-onset muscle soreness increased in both groups. However, differential alterations were observed between thermoneutral water and cold water immersion groups in creatine kinase (30 min, 24 h, 48 h), myoglobin (30 min), C-reactive protein (30 min, 24 h, 48 h), quadriceps strength (24 h), and quadriceps (24 h), calf (24 h) and adductor (30 min) delayed-onset muscle soreness. The results suggest that cold water immersion immediately after a one-off soccer match reduces muscle damage and discomfort, possibly contributing to a faster recovery of neuromuscular function. 相似文献
4.
The Virtual Learning Environment ROODA: An Institutional Project of Long Distance Education 总被引：1，自引：1，他引：0
Patricia Alejandra Behar Sílvia Meirelles Leite 《Journal of Science Education and Technology》2006,15(2):159-167
This article describes ROODA (), a virtual learning environment and one of the official Long Distance Education platforms that has been in use since 2005 at the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil. It is free software that integrates syncronous and assyncronous interaction/communication tools and publications. In this study, details about institutional demands in relation to long distance education are discussed and ROODA is described with the components that were part of its development such as: modelling and programming, graphic interface and documents for users. Moreover, 19 functions were conceived. Finally, project investigation paths are presented where the platform described is inserted.
相似文献
| Patricia Alejandra BeharEmail: |
5.
Walter L. Leite Robert Sandbach Rong Jin Jann W. MacInnes M. Grace-Anne Jackman 《Structural equation modeling》2013,20(3):437-456
Because random assignment is not possible in observational studies, estimates of treatment effects might be biased due to selection on observable and unobservable variables. To strengthen causal inference in longitudinal observational studies of multiple treatments, we present 4 latent growth models for propensity score matched groups, and evaluate their performance with a Monte Carlo simulation study. We found that the 4 models performed similarly with respect to model fit, bias of parameter estimates, Type I error, and power to test the treatment effect. To demonstrate a multigroup latent growth model with dummy treatment indicators, we estimated the effect of students changing schools during elementary school years on their reading and mathematics achievement, using data from the Early Childhood Longitudinal Study Kindergarten Cohort. 相似文献
6.
Denise Leite Cláudia S. Sarrico Cecília Loréa Leite Marlis Polidori 《Assessment & Evaluation in Higher Education》2006,31(6):625-638
There are many studies about the experiences of higher education students, but few analyse their representations of the governance and the management of their institutions. Our study will describe, analyse and compare students' representations of institutional evaluation at three institutions in Portugal and Brazil. Our results, based on an open questionnaire which sought to collect students' views on institutional evaluation, show that students' views are neither homogeneous nor do they simply reproduce the dominant external perspectives on the subject. A significant amount of students thought that evaluation is a legitimate exercise, resulting from a political decision, which is useful to improve the quality of universities and the relationship between students and academic staff. Some students also recognize that evaluation will lead to institutional comparisons, functioning as a mechanism of control, regulation, monitoring, and possibly of standardization. It is also noted to be ‘an impossibility’, since it can never comprehend the existing diversity of institutional performance. 相似文献
7.
This naturalistic study integrates specific ‘question moments’ into lesson plans to increase pupils’ classroom interactions. A range of tools explored students’ ideas by providing students with opportunities to ask and write questions. Their oral and written outcomes provide data on individual and group misunderstandings. Changes to the schedule of lessons were introduced to explore these questions and address disparities. Flexible lesson planning over 14 lessons across a 4-week period of high school chemistry accommodated students’ contributions and increased student participation, promoted inquiring and individualised teaching, with each teaching strategy feeding forward into the next. 相似文献
8.
Cleiton Augusto Libardi Giovana Verginia Souza Arthur Fernandes GÁspari Claudinei Ferreira Dos Santos Sabrina Toffoli Leite Rodrigo Dias 《Journal of sports sciences》2013,31(14):1573-1581
Abstract The purpose of this study was to evaluate the effects of moderate- to high-intensity resistance and concurrent training on inflammatory biomarkers and functional capacity in sedentary middle-aged healthy men. Participants were selected on a random basis for resistance training (n = 12), concurrent training (n = 11) and a control group (n = 13). They performed three weekly sessions for 16 weeks (resistance training: 10 exercises with 3 × 8–10 repetition maximum; concurrent training: 6 exercises with 3 × 8–10 repetition maximum, followed by 30 minutes of walking or running at 55–85% [Vdot]O2peak). Maximal strength was tested in bench press and leg press. The peak oxygen uptake ([Vdot]O2peak) was measured by an incremental exercise test. Tumour necrosis factor-α, interleukin-6 and C-reactive protein were determined. The upper- and lower-body maximal strength increase for both resistance (+42.52%; +20.9%, respectively) and concurrent training (+28.35%; +21.5%, respectively) groups (P = 0.0001).[Vdot]O2peak increased in concurrent training when comparing pre- and post-training (P = 0.0001; +15.6%). No differences were found in tumour necrosis factor-α and interleukin-6 for both groups after the exercise. C-reactive protein increased in resistance training (P = 0.004). These findings demonstrated that 16 weeks of moderate- to high-intensity training could improve functional capacity, but did not decrease inflammatory biomarkers in middle-aged men. 相似文献
9.
Jorge Arede Pedro Esteves António Paulo Ferreira Jaime Sampaio Nuno Leite 《Journal of sports sciences》2013,31(19):2220-2227
ABSTRACTThe aims of this study were to examine the medium-term effects of previous experiences during early stages of sport development on physical capacities of under-13 (U-13) talented basketball players and, to identify variables that discriminated under-14 (U-14) national team training camp selection. Anthropometrical and physical measurements were collected during a basketball training camp. Previous sport experiences (6–10 years), maturity offset, power outputs for jumping and sprinting were determined. A cluster analysis was used to allocate the subjects according to their different levels of sport experiences (more specialized vs. less specialized) to allow creating a dummy variable for the subsequent analysis of the physical variables. A stepwise discriminant analysis was computed to identify the construct that best classifies selected and non-selected players for U-14 national team training camp. The less specialized group outscored more specialized in all physical parameters, irrespectively of gender. The Abalakov Jump Peak Power and Predicted Adult Height (PAH) could successfully discriminate selected from non-selected players for U-14 national team training camp in boys and PAHin girls. The diversified and non-specific sport stimulus during early ages seem to be determinant to the acquisition and development of fundamental movement skills of talented basketball players. 相似文献
10.
Mark Hickson III Joshua Turner Larry Powell Eduardo Neiva Carol T. Adams 《Communication Research Reports》2013,30(4):389-398
This study examined the relationships between the somatic‐marker hypothesis, developed by Damasio (1994) as it relates to homophily and verbal immediacy in the classroom. Damasio has hypothesized that when particular events occur in one's life, there is a “memory” of that event in the brain. As a result, when a similar event occurs, the somatic marker recreates that first event. Students were provided three different scenarios about the first day of a communication class. In the scenarios, the instructor presented information about himself. One instructor provided only autobiographical, demographic data (the control). Another provided information hozu he had had difficulty with public speaking (the selfish marker). The third provided information about how the instructor had helped someone else who had difficulty in public speaking (the altruistic marker). The results indicated that while homophily differences were not significant, there was a significant difference between the control group and the altruistic marker. 相似文献