This 9-month randomised controlled workplace physical activity trial investigated the effects of soccer and Zumba exercise, respectively, on muscle strength, maximal jump height, sit-and-reach flexibility and postural sway among female workers. A total of 107 female hospital employees aged 25–63 were cluster-randomised to a soccer group, a Zumba group or a control group. Training was conducted outside working hours as two to three 1-h weekly sessions the first 3 months and once a week the last 6 months. Tests were conducted at baseline, after 3 and 9 months. The soccer group improved maximal neck extension strength both after 3 (1.2 kg; P < 0.05) and 9 months (1.7 kg; P < 0.01) compared to the control group. The Zumba group improved maximal trunk extension strength (3.1 kg; P = 0.04) after 3 months, with improvements in postural sway velocity moment (?9.2 mm2/s; P < 0.05) and lower limb lean mass (0.4 kg; P < 0.05) after 9 months. No significant intervention effects were revealed in vertical jump height or sit-and-reach flexibility. The present study indicates that workplace-initiated soccer and Zumba exercise may be beneficial for improvement of the neck and trunk strength, which may have preventive effects with regard to future perceived muscle pain in the respective body regions. Furthermore, the Zumba group revealed positive effects on lower limb lean mass and postural sway compared to the control group. 相似文献
Background: Previous studies of mastery motivational climates within physical education have reported that providing students with opportunities to become self-directed leads to a number of positive outcomes, including skill attainment and increased perceptions of ability. Nonetheless, within all of these studies, there has been no account of the teaching/learning process or the behaviour of the students and teachers within the various interventions.
Purpose: The purpose of this study was to provide a micro-analysis of life in a mastery climate which was grounded in the classroom ecology paradigm.
Participants and setting: The participants in this study were 13 children (11 boys and 2 girls) all aged 4 years at the commencement of the programme. The children were attendees at a day-care centre that serves mostly African-American children from the local community who are environmentally at risk for developmental delay and poor health. The teacher in this study was a faculty member at the university where the programme took place. For 30 minutes each Tuesday and Thursday, the children participated in a programme of motor skill instruction that was based upon the key principles of a mastery-motivational climate. Selected station activities were designed to promote the acquisition of locomotor and object control skills.
Methods: A mixed-methods approach was taken, with data sources including interviews with the teacher, and an analysis of the ecology of the gymnasium using a modified version of the task structure system. Focus was placed upon the task goals, the teacher's accountability strategies, as well as task accomplishment in both the managerial and instructional task systems.
Findings: The key finding from this study was an appreciation of how time is a significant factor in the ways in which children initially responded to and eventually embraced the freedoms afforded to them in a mastery climate. Of particular note, the results show substantial differences in the children's lesson engagement not only across time, but also within lessons themselves. It is hypothesized that as they progressed through the programme, the children not only were more able to identify the demands of the task but were also able to filter out extraneous signals that might promote off-task or inappropriate behaviour.
Conclusions: The design of this study reinforced the value of adopting an ecological analysis of life in a mastery climate. Further, the results of the study showed the value of examining young children's engagement over a lengthy intervention. While such climates are expected to have lower levels of engagement and higher levels of off-task behaviour than more teacher-directed formats, by the end of the study the children were able to achieve levels of appropriate task engagement above 80% of lesson time. 相似文献
Background: Our understanding of the role in which content knowledge (CK) can strengthen instructional models and how that knowledge matters for professional development is limited. It is contended that mere use of an instructional model is insufficient to impact psychomotor learning in meaningful ways.Purpose: This study was conducted to investigate how a teacher's enacted pedagogical content knowledge (PCK) differed as a function of CK and Sport Education (SE), and to investigate the relative contribution of CK and Sport Education on student learning in terms of swimming performance.Methods: Four intact classes comprising 88 secondary school students (age: 16–17 years) were randomly assigned to a Traditional, an Sport Education, a Traditional-CK, and a SE-CK group. All classes were taught by the same teacher during a 10-day unit of instruction in the front crawl.Results: Results showed that the teacher's PCK differed as a function of improved CK. For verbal representations, the amount of cues in the Traditional-CK and SE-CK groups increased about sixfold compared to the Traditional and the SE group. For visual representations, more partially incorrect demonstrations were observed than correct demonstrations in the Traditional and the SE group. More mature and developmentally appropriate tasks were observed in the Traditional-CK and the SE-CK group compared to the Traditional and the SE group. Students in the Traditional-CK and SE-CK groups demonstrated a significant reduction of their amount of strokes on 50?m compared to the Traditional group. A significant interaction effect revealed a larger increase in swimming performance in the CK groups compared to the Traditional and the SE group. Finally, students in the SE group swam significantly more laps than their counterparts in the other groups.Discussion and conclusion: These results show the impact on student learning when CK was added to both Traditional and Sport Education conditions and contribute to the literature for pre- and in-service teachers. The Sport Education model did not contribute to students’ swimming performance. Students in the Traditional and the SE group did not get the same quality of instruction as students in the Traditional-CK and SE-CK conditions. The latter groups received content that was presented differently both as a presentation and in terms of the actual task. In short, students in the Traditional and Sport Education conditions experienced the content differently than those in the Traditional-CK and SE-CK conditions. These instructional differences resulted in students in the Traditional-CK and SE-CK conditions improving their swimming performances in terms of technical efficiency and in terms of 50?m times. 相似文献
The purpose of this paper is to share a performance assessment task and rubric designed to assess secondary school mathematics
preservice teachers’ pedagogical content knowledge and skills. The assessment task and rubric were developed in collaboration
with five education faculty, four arts and sciences faculty, and four high school teachers over a period of one year. Over
this period, the group met more than 15 times and designed an assessment task and rubric to measure secondary school preservice
teachers’ pedagogical content knowledge and skills. The assessment task and rubric were piloted at the end of the year and
extensively revised using the pilot data. The redesigned task and rubric were successfully carried out in the second and subsequent
years. Other teacher education programs can benefit from this assessment of teacher candidates’ pedagogical content knowledge
and skills. 相似文献
Skill/competency approaches to workplace-based policy seek to assess and train for discrete individual competencies with the
goal of increasing employability and productivity. These approaches have become increasingly prominent across a range of advanced
capitalist countries. A substantial critique has emerged over this same period regarding issues of instrumentality and social
control, as well as the failure of skill/compentancy approaches to articulate a meaningful understanding of human learning
capacities. In this article, these critical perspectives are clarified further by a review of contributions to understanding
the skill/competence question emerging from sociology of work literature. Building from these critiques, this article outlines
recent experiences with and perspectives on skill/competency frameworks amongst different national labour movements. Included
in this outline is a more detailed, comparative analysis of Norway and Canada; here we see the lofty ‘new’, ‘knowledge economy’
rhetoric — in two countries where one might expect to see it blossom in application — brought down to earth by the realities
of industrial relations, employer intransigence and intra-labour movement differences. ‘Skill/competence’ proves to be a floating
signifier that, amongst both employers and labour, stands as a proxy for ‘power/control’ struggles. Degenerating in this way,
from a labour perspective, the new politics of skill/competency formation is seen to have spiraled toward irrelevance in Norway
and Canada; awaiting, in both countries, a re-invigoration through attention to changes in the participatory structure of
the labour process itself. 相似文献
With respect to films, OFRATEME cooperates with FWU without any true coproduction. For example so far as 16mm films are concerned, the films produced all come within the scope of the free-exchange agreement made either at Council of Europe level or ICEM level. For example for 8mm films, all the producting countries, including France and West Germany, wish to retain ownership of their films, and negotiate the transfer of utilisation rights within the framework of the distribution system. 相似文献
The introduction of the National Curriculum in 1988 caused much discussion (some of it angst‐ridden) among both academics and practitioners working with pupils with severe and profound learning difficulties, and much of the meat (and the angst) of these discussions is still going on today. We argue that 24 years is a long experiment; that despite the best intentions of many, the experiment has failed; it is therefore well past time for separate and distinct pedagogies to be formulated for both severe and profound learning difficulties. Such pedagogies can only exist as part of the current National Curriculum if they are recognised as distinct curriculum models for those with severe and profound learning difficulties. 相似文献
