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Jan G. Bourgois Jasmien Dumortier Margot Callewaert Bert Celie Carlo Capelli Gisela Sjøgaard 《European Journal of Sport Science》2017,17(5):611-620
‘A tribute to Dr J. Rogge’ aims to systematically review muscle activity and muscle fatigue during sustained submaximal quasi-isometric knee extension exercise (hiking) related to Olympic dinghy sailing as a tribute to Dr Rogge’s merits in the world of sports. Dr Jacques Rogge is not only the former President of the International Olympic Committee, he was also an orthopaedic surgeon and a keen sailor, competing at three Olympic Games. In 1972, in fulfilment of the requirements for the degree of Master in Sports Medicine, he was the first who studied a sailors’ muscle activity by means of invasive needle electromyography (EMG) during a specific sailing technique (hiking) on a self-constructed sailing ergometer. Hiking is a bilateral and multi-joint submaximal quasi-isometric movement which dinghy sailors use to optimize boat speed and to prevent the boat from capsizing. Large stresses are generated in the anterior muscles that cross the knee and hip joint, mainly employing the quadriceps at an intensity of 30–40% maximal voluntary contraction (MVC), sometimes exceeding 100% MVC. Better sailing level is partially determined by a lower rate of neuromuscular fatigue during hiking and for ≈60% predicted by a higher maximal isometric quadriceps strength. Although useful in exercise testing, prediction of hiking endurance capacity based on the changes in surface EMG in thigh and trunk muscles during a hiking maintenance task is not reliable. This could probably be explained by the varying exercise intensity and joint angles, and the great number of muscles and joints involved in hiking.Highlights
Dr Jacques Rogge, former president of the International Olympic Committee and Olympic Finn sailor, was the first to study muscle activity during sailing using invasive needle EMG to obtain his Master degree in Sports Medicine at the Ghent University.
Hiking is a critical bilateral and multi-joint movement during dinghy racing, accounting for >60% of the total upwind leg time. Hiking generates large stresses in the anterior muscles that cross the knee and hip joint.
Hiking is considered as a quasi-isometric bilateral knee extension exercise. Muscle activity measurements during sailing, recorded by means of EMG, show a mean contraction intensity of 30-40% maximal voluntary contraction with peaks exceeding 100%.
Hiking performance is strongly related to the development of neuromuscular fatigue in the quadriceps muscle. Since maximal strength is an important determinant of neuromuscular fatigue during hiking, combined strength and endurance training should be incorporated in the training program of dinghy sailors.
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Margo. L. Brewer Gisela van Kessel Brooke Sanderson Fiona Naumann Murray Lane Alan Reubenson 《高等教育研究与发展》2019,38(6):1105-1120
ABSTRACTThe health, wellbeing and employability of university students are key considerations within higher education. In response, interest in student resilience is on the rise. Reviews of contemporary resilience literature highlight both conceptual and methodological weaknesses, issues which hamper attempts to design effective resilience interventions. To inform the design of a student resilience program, to be piloted at three Australian universities, a scoping review of resilience specific to the higher education context was undertaken. Searches of three electronic databases (PsychINFO, CINAHL and ProQuest) were conducted. Seventy-two peer-reviewed articles published between 2007 and 2017 were included in the review. While the review reaffirms the conceptual and methodological issues found in previous resilience research, it provides a useful critique of key issues in relation to university student resilience and interventions to enhance students’ resilience. Recommendations for educators and researchers are provided. 相似文献
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Higher Education - Undergraduate internships have gained popularity among students, universities, governments and firms since the creation of the European Higher Education Area. However, empirical... 相似文献
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Anne-Sophie Hayek Claudia Toma Sofia Guidotti Dominique Oberlé Fabrizio Butera 《European Journal of Psychology of Education - EJPE》2017,32(1):97-112
At school, pupils often cooperate on common projects and must coordinate their different individual actions. However, grades are pervasively used even in cooperative situations, which make the pupils’ differences in achievement and their relative rank salient and may reduce their inclination to work constructively with others. Thus, we hypothesized that grades would elicit disruptive interactions and reduce performance in a cooperative cognitive-motor task necessitating inter-individual coordination of members. In a study with 5th graders, grades (vs. a neutral concept) were primed at the onset of a cooperative group interaction. Results showed that, although pupils were set to work cooperatively, priming grades (vs. neutral concepts) harmed inter-individual coordination by eliciting more negative dominant behaviours among pupils during interactions, which decreased group performance. 相似文献
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Christiana Butera Priscilla Ring John Sideris Aditya Jayashankar Emily Kilroy Laura Harrison Sharon Cermak Lisa Aziz‐Zadeh 《Mind, Brain, and Education》2020,14(3):243-254
Difficulty processing sensory information may impede progress in school for students with autism spectrum disorder (ASD). We explore the relationship between sensory processing and school performance in 26 high‐functioning youths with ASD and 26 controls (age 8–14) using measures of sensory, social, cognitive, and academic functioning. In the ASD group, bivariate Pearson correlations indicated a significant positive relationship between intelligence quotient (IQ) and the School Competence Scale (SCS) of the Child Behavior Checklist (CBCL), and a significant negative relationship between Dunn's Sensory Processing Framework and SCS scores. Final hierarchical multiple linear regression model accounting for SCS scores in ASD included IQ, ADHD symptoms, and sensory features. An interaction between increased sensory sensitivity with reduced sensory avoidance behaviors explained the greatest amount of variance in SCS, meaning school performance is lowest for children with greater hypersensitivity and fewer avoidance behaviors. Results indicate a strong impact of sensory processing on school performance in ASD. 相似文献
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Teacher perceptions of the regular education initiative 总被引：1，自引：0，他引：1
A survey of 381 special and regular educators assessed perceptions and opinions surrounding the regular education initiative. Confirmatory factor analysis supported an a priori hypothesized structure of teachers' responses. Items factored into 14 categories. These factors describe issues related to preferred placement of students with mild disabilities, teachers' responsibility and ownership, teacher preparedness for meeting the needs of these students, achievement outcomes for all children, and the changes that would result from adopting the proposed consultant model rather than a pullout program. Results favored current special education practices (pullout programs) in elementary schools. 相似文献
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Gisela Schade 《Higher Education》1972,1(4):477-481
The debate about recurrent education is still for the most part at an unsophisticated level. This note suggests that whatever the problems of recurrent education in general it is likely to be particularly attractive to women returning to work after their childrearing is finished.The views expressed in this article are those of the author and do not necessarily represent those of the OECD. 相似文献
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Ninety‐six 5‐year‐old girls and boys and their mothers (n ‐‐ 87) participated in a cross‐cultural study on prosocial behaviour in Germany and the former USSR. Each child was observed interacting with a playmate who appeared to be sad. The mothers’ educational belief systems were examined on the basis of: (i) a semi‐projective instrument (So‐Sit) depicting everyday conflicts between mother and child; (ii) an interview on a recent conflict. The intensity of prosocial behaviour was higher in German girls than in German boys or Russian girls. More Russian boys than girls showed at least some kind of prosocial behaviour. Russian mothers described their handling of conflicts as more harmonious than German mothers, whereas sex differences occurred within each culture. The results are discussed with regard to the impact of different child‐rearing belief systems in individualistic versus collectivist cultures on the social behaviour of children. 相似文献
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Previous studies with university students have shown that resource interdependence during cooperative dyadic work on texts
produces two different dynamics in student interaction and learning. Working on complementary information produces positive
interactions, but a good quality of information transmission is needed to foster student learning. Working on identical information
produces a confrontation of viewpoints but also encourages a threatening social comparison of competence, which can be detrimental
for learning. The aim of present study is to test the moderating role of a partner’s competence in two peer-learning methods
by manipulating a partner’s competence through a confederate. Results indicate that a partner’s competence is beneficial when
students work on complementary information while it is detrimental when students work on identical information. 相似文献