排序方式： 共有28条查询结果，搜索用时 31 毫秒
1.
Felipe Minozzo Carlos Leonardo Figueiredo Machado Eurico Nestor Wilhelm Rafael Grazioli Ronei Silveira Pinto 《European Journal of Sport Science》2018,18(10):1398-1404
Isokinetic hamstring-to-quadriceps (H:Q) ratios are frequently used to assess knee muscle strength imbalances and risk of injuries/re-injuries. The use of peak torque (PT) or total work (TW) to estimate joint stability may lead to different results because of the differences between these two neuromuscular variables. Thus, the current study aimed to compare the conventional and functional H:Q ratios calculated by PT and TW. Ninety-three male professional soccer players from Brazilian first division teams performed isokinetic concentric and eccentric contractions of the quadriceps and the hamstrings at 60°/s. Muscle strength balance was calculated using the conventional torque ratio (CTR) and conventional work ratio (CWR), functional torque ratio (FTR) and functional work ratio (FWR) were highly and moderately correlated between them (r?=?0.83 and r?=?0.73, respectively). The Wilcoxon statistical test revealed significant differences between CTR and CWR, as well as FTR and FWR (p?T-test demonstrated significant differences in mean CTR–CWR and FTR–FWR, whereas Bland–Altman plots showed non-consistent bias. In addition, the chi-square test demonstrated significant differences between players below the conventional reference values and functional reference values (p?相似文献
2.
3.
OBJECTIVE: The study examines the self-reported prevalence of childhood physical and sexual abuse in a large sample of Portuguese parents. METHOD: Nearly 1,000 parents (506 mothers and 426 fathers) were selected through public primary schools from the Northern area of Portugal. All completed the Portuguese version of the Childhood History Questionnaire (CHQ) [Journal of Family Violence 5 (1990) 15]. RESULTS: Results show that the prevalence of abuse was 73%, but more severe physical abuse involving sequelae/injury was reported by 9.5%. Most physical abuses began prior to age 13, with half continuing after age 13. No gender differences were found for rates of physical abuse. However, among the milder physical abuse without sequelae/injury, those women who experienced "whipping" or "slapping/kicking" were more likely to do so from their mothers than fathers. Among men who were "slapped/kicked" this was more likely to be from their fathers. Low rates of sexual abuse were found at 2.6% with no gender or age differences. Lack of a supportive adult in childhood related to the more severe abuses, but only in adolescence. Portuguese rates of abuse were consistently lower than those reported in USA and Spanish studies using the CHQ. CONCLUSIONS: This is the first retrospective, self-report study of childhood abuse in a large sample of Portuguese parents and, even with a participation rate of 69%, shows lower rates than in US and Spanish samples. 相似文献
4.
Making Design Education (Even More) Complex: Exploring Complexity for an Amplified Mindset of Design
Mafalda Moreira 《The International Journal of Art & Design Education》2019,38(4):769-784
An Amplified Mindset of Design (AMD) has emerged from recent research on emerging design practices, as designers are once again re‐inventing their identity to include an adaptability to uncertainty and paradox. However, this is not yet visible in what design education offers. As designers intervene in complex contexts and embrace participatory, collaborative and interdisciplinary practices informed by strong ethical and sustainability concerns, design education must adjust and expand its scope to include, for example, collaboration, cross‐cultural and interdisciplinary skills, and a way of being in the world through design. In this article, I argue for the formal introduction and exploration of social complexity in design education to assist the development of an AMD in design students. Boundaries, dependence on context, edge of chaos, emergence and organisation were identified as key qualities of complex systems to introduce to students. Embodiment and visualisation techniques were used as the most appropriate vehicles for such an endeavour. In this article, I discuss the results of a qualitative research informed by action research in which I explore ways of teaching complexity to design students. The inquiry was driven by the following core research question: How can complexity can be taught in design education using visual and embodiment methods to encourage the development of an Amplified Mindset of Design? 相似文献
5.
It has been suggested that being physically abused leads to someone becoming a perpetrator of abuse which could be associated to parents’ gender, timing of the physical abuse and specific socio-demographic variables. This study aims to investigate the role the parents’ gender, timing of childhood abuse and socio-demographic variables on the relationship between parents’ history of childhood physical abuse and current risk for children. The sample consisted of 920 parents (414 fathers, 506 mothers) from the Portuguese National Representative Study of Psychosocial Context of Child Abuse and Neglect who completed the Childhood History Questionnaire and the Child Abuse Potential Inventory. The results showed that fathers had lower current potential risk of becoming physical abuse perpetrators with their children than mothers although they did not differed in their physical victimization history. Moreover, the risk was higher in parents (both genders) with continuous history of victimization than in parents without victimization. Prediction models showed that for fathers and mothers separately similar socio-demographic variables (family income, number of children at home, employment status and marital status) predicted the potential risk of becoming physical abuses perpetrators. Nevertheless, the timing of victimization was different for fathers (before 13 years old) and mothers (after 13 years old). Then our study targets specific variables (timing of physical abuse, parents’ gender and specific socio-demographic variables), which may enable professionals to select groups of parents at greater need of participating in abuse prevention programs. 相似文献
6.
Lara Elena Gomes Vera Diogo Flávio Antônio de Souza Castro João Paulo Vilas-Boas Ricardo J. Fernandes Pedro Figueiredo 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(4):354-365
Synchronised swimming involves a variety of sculling movements essential for body support and propulsion but its study is scarce. We aimed to biomechanically compare standard and contra-standard sculling techniques, and to observe the relationship between measures. Six synchronised swimmers performed two, 30 s maximal intensity, fully tethered standard and contra-standard sculling motions. Kinetic and kinematic data were obtained using a load-cell and underwater cameras, respectively. Force decreased along both techniques’ bouts, but no differences in-between techniques were noted for any kinetic variables. Standard sculling presented a higher cycle rate and a lower elbow mean angle than the contra-standard sculling (2.4 ± 0.3 vs. 2.0 ± 0.2 cycles/s and 134.1 ± 5.8 and 141.5 ± 4.7°, p < 0.05). In the standard sculling, by removing and maintaining the variation between participants (r w and r, respectively), the absolute mean force was directly related with cycle rate (r w = 0.60) and wrist angular velocity during flexion (r = 0.82), while in the contra-standard condition the force was inversely associated with wrist mean angle (r = ?0.95) and directly with hand speed (r w = 0.76), and elbow angular velocity (r w ≈ 0.60). Therefore, technique learning and training require different attention by coaches and swimmers. 相似文献
7.
Thiago Telles Renato Barroso Pedro Figueiredo Diego Fortes de Souza Salgueiro João Paulo Vilas-Boas Orival Andries Junior 《Journal of sports sciences》2017,35(9):906-911
Hand paddles and parachutes have been used in order to overload swimmers, and consequently increase the propulsive force generation in swimming. However, their use may affect not only kinematical parameters (average speed, stroke length and stroke rate), but also time gaps between propulsive phases, assessed through the index of coordination (IdC). The objective of this study was to assess the effects of hand paddles and parachute use, isolated or combined, on kinematical parameters and coordination. Eleven swimmers (backstroke 50-m time: 29.16 ± 1.43 s) performed four 15-m trials in a randomised order at maximal intensity: (1) without implements (FREE), (2) with hand paddles (HPD), (3) with parachute (PCH) and (4) with hand paddles plus parachute (HPD+PCH). All trials were video-recorded (60 Hz) in order to assess average speed, stroke rate, stroke length, five stroke phases and index of coordination. When average swimming speed was compared to FREE, it was lower in PCH and HPD+PCH, and higher in HPD. Stroke rate decreased in all overloaded trials compared to FREE. The use of hand paddles and parachute increased and decreased stroke length, respectively. In addition, propulsive phase duration was increased when hand paddles were used, and time gaps shifted towards zero (no time gap), especially when hand paddles were combined with parachute. It is conceivable that the combined use of hand paddles and parachute, once allowing overloading both propulsive and resistive forces, provides a specific stimulus to improve muscle strength and propulsive continuity. 相似文献
8.
Alexandra R. Costa Mafalda Ferreira Ana Barata Conceição Viterbo José Salgado Rodrigues José Magalhães 《European Journal of Engineering Education》2019,44(4):589-601
ABSTRACTThis paper intends to present an interdisciplinary project carried out in a School of Engineering, and to refer to its effects in the development of students’ skills. This project’s main goal was to present students with an intellectually demanding challenge which implied overcoming the disciplinary barriers thus integrating knowledge to solve the problems they were challenged with. After the project had been concluded, a study was carried out using a qualitative methodology by conducting two focus groups (n?=?16). The main goal of this procedure was to get a better perception of (1) how students understood the project; (2) what kind of skills students considered to have developed throughout the project, and (3) the importance they have attributed to this kind of project. The results demonstrate that students are aware of the relevance of the project not only for their education process but also for the development of their skills. The results of the study also reveal that the students involved in the project have been capable of identifying the specific skills that the project work had intended to address and develop. 相似文献
9.
Anabela C. Alves Rui M. Sousa Sandra Fernandes Elisabete Cardoso Maria Alice Carvalho Jorge Figueiredo 《European Journal of Engineering Education》2016,41(2):123-141
Project-Based Learning (PBL) has been implemented in the first year of the Industrial Engineering and Management programme at the University of Minho, Portugal, since 2004/2005. The purpose of this paper is to analyse and discuss teachers' experiences in PBL in this programme and to explore its implications for student learning and for teaching practices in higher education. For data collection, the research method used was written narratives to these teachers, at the end of the PBL semester. Findings suggest that teachers express a positive view of PBL as a learning approach. They identify student motivation and engagement, along with a better understanding of the application of concepts in real-life situations, as important outcomes of the project for students. Besides this, teachers also highlight the importance of the development of transversal skills by students throughout the project. Recommendations for future work and implications for practice will also be discussed. 相似文献
10.
Biscaia Ricardo Melo Ana I. Machado Isabel Figueiredo Hugo Rosa Maria João Rocha Paula 《Tertiary Education and Management》2020,26(3):281-294
Tertiary Education and Management - This article presents a set of performance indicators based on the Portuguese case for managing the performance of research and cultural creation activities and... 相似文献