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Background: The primary school age group (aged 5–11 years) is acknowledged as a critical period in the development of physical activity patterns and healthy lifestyle behaviours. Furthermore, high quality physical education (PE) is crucial for the development of lifelong physical activity behaviours and is highly dependent on the interaction between the teacher and the pupil. Despite this, there is a lack of training and confidence of many primary generalist teachers to teach PE in the UK. It is argued that effective continuing professional development (CPD) to address this issue should be supportive, job embedded, instructionally focused, collaborative and ongoing.

Purpose: This study was funded by a national government funded organisation and led by a university in collaboration with a secondary PE specialist and two primary teachers. The purpose was to develop a replicable PE-CPD process to improve primary generalist teachers’ PE pedagogy by transferring their positive pedagogy from the classroom to the PE setting.

Participants: The participants were two Year 3 (age 7–8 years) primary classroom teachers from the same school and one secondary PE specialist teacher who acted as a mentor.

Research approach: A collaborative professional learning (CPL) approach was utilised to develop the PE-CPD intervention process. CPL involves teachers and other members of a profession working together to improve their own and others’ learning on pedagogic issues. A six-week needs assessment phase was completed through classroom and PE lesson observations to identify key areas for development in the PE-CPD process over the duration of a 23 week intervention.

Data collection and analysis: Reflective logs, structured lesson observations and teacher interviews were used to collect the data during the PE-CPD intervention. Inductive and deductive qualitative thematic analysis was used to analyse and interpret the data.

Findings: A number of key themes were generated during the data analysis including the transfer of positive pedagogy from the classroom to the PE setting and the implementation of effective pedagogic principles including the setting of clear learning outcomes, differentiation and inclusion to enhance the PE pedagogy. A key element to the success of the intervention was the trusting relationships built by the secondary PE specialist with the primary teachers. Further, the results also revealed the importance of CPL in ensuring rigorous, evidence-based PE-CPD and providing the time and support required for fundamental sustainable changes in practice, which can endure beyond the life of the research project.

Conclusion: The major contribution of this paper is in demonstrating the potential of CPL between national organisations, universities, secondary and primary schools to improve the PE pedagogy of primary generalist teachers. Future research should build upon the findings in this study and replicate this PE-CPD approach with other classes and schools.  相似文献   


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Objective: To analyze the possible dose-response association between components of sports participation (intensity, volume and previous engagement) and 4-year mortality rates among Brazilian adults.

Methods: 679 males and females (mean age among men = 66.7 ± 9.3 years old and mean age among women = 64.8 ± 8.9 years old) composed the study sample. Sports participation was assessed using Baecke’s questionnaire, which considers intensity, duration and previous engagement. Medical records were used to identify the cause of the death. Cox regression analysis was performed to determine the independent associations of exercise components and mortality.

Results: Participants that reported exercising at moderate-vigorous intensity (Moderate/vigorous: 4.1% versus None/light: 10.3% [p-value = 0.012]; HR = 0.42 [0.1 to 0.94)] and for more than four months (≥4 months: 5.3% versus <4 months: 10.2% [p-value = 0.038]; HR = 0.47 [0.24 to 0.94]) had lower mortality risk. The percentage of survival according to all-cause mortality was significantly higher for participants engaged in sports at moderate-vigorous intensity (p-value = 0.014), as well as for those engaged in sports for periods superior than four months (p-value = 0.036).

Conclusion: We found higher percentage of survival among adults engaged in sports at moderate-vigorous intensity and with at least four months of previous engagement.  相似文献   


5.
Purpose: To compare characteristics of club level male soccer players 11 and 13 years of age, and to evaluate playing status in soccer two and 10 years after baseline by birth quarter (BQ).

Methods: Youth players 11 (n = 62, born 1992, observed December 2003) and 13 (n = 50, born 1990, observed April 2004) years were grouped by BQ. Baseline data included stature, weight, maturity status, functional capacities, soccer skills, goal orientation, and coach evaluation of potential. Playing status in soccer in 2006 and 2014 was also available. Baseline characteristics and subsequent playing status were compared by BQ.

Results: Baseline characteristics did not differ by BQ except for age and percentage of predicted adult height. Though not significant, coaches tended to rate players in BQ1as higher in potential. For those competing in soccer as adults, BQ2 (4), BQ3 (5) and BQ4 (2) were represented among players11 years, and BQ1 (3), BQ2 (2), BQ3 (1) and BQ4 (4) among players 13 years.

Conclusion: Although limited to small numbers, differences among players by BQ were inconsistent. The results indicate a need to extend potential explanations of the RAE to include behavioral variables, coaches, training environment, and perhaps the culture of the sport.  相似文献   


6.
Background: Previous research on physical education (PE) teaching practice indicates that an exercise physiology discourse has assumed a dominant position within the field. Research shows that PE teachers are likely to emphasise physical fitness training in their teaching, and PE teachers seem to appreciate pupils who show high levels of physical exertion.

Purposes: Our aim is to examine how vigorous activity/exercise is represented in the practice of PE teaching. We will also examine teaching as a discursive practice, and thereby contribute to a critical perspective on PE pedagogy.

Research design: This study was conducted in four upper secondary schools in Oslo, Norway. Data material was produced through fieldwork, during which we observed 92 PE lessons. Additionally, we conducted qualitative interviews with the eight teachers who participated in the study. Our methodological framework was discourse analysis.

Findings: Our material shows that vigorous activity plays a complex role in PE class: it can be beneficial, but it can also be punitive. The PE teachers we observed drew on an exercise physiology discourse to portray vigorous activity/exercise as beneficial and valuable to the promotion of pupils’ physical fitness and health. However, the teachers also drew on a military discourse when assigning vigorous activity to rebuke a disobedient pupil. The teachers also introduced vigorous activity in the form of additional exercise ‘punishment’, which they assigned to losers in competitive activities. In these instances, the teachers drew on exercise physiology and sports discourses. Thus, we identified how vigorous activity changed value according to context, and discuss how teachers’ use of vigorous activity as punishment can seem paradoxical in a PE setting.

Conclusion and recommendation: Our study indicates that, rather than adhering to modern educational practices, PE is rooted in ideas and practices derived from military, sports and exercise physiology discourses. PE teachers inculcated with these discourses have limited ability to discern the paradox of assigning vigorous exercise to their pupils as both a high-value activity and a punishment. PE Teacher Education should therefore problematise how teaching practice is influenced by these discourses, and facilitate discussions on how such discourses constitute PE.  相似文献   


7.
Background: One of the key questions of physical education teacher educators (PETE) programmes refers to whether future teachers are prepared to build knowledge and skills to feel self-efficacious in teaching physical education (PE). This issue concerns the instructional model of teaching used to help PE pre-service teachers to master both pedagogical knowledge and motor skills. According to this twofold challenge, the direct instruction (DI) is mainly used for pre-service teacher training. Beyond this traditional model, other instructional models as cooperative learning (CL) approach arise in the initial PE teacher education. Nevertheless, surrounding attempts at innovation, little information related to the instructor’s role. Under the social cognitive perspective of self-efficacy and instructional competency building, more information is currently expected with regard to the strategies the instructor uses to scaffold the mastery of skills for PE pre-service teachers’ effective teaching.

Purpose: The purpose of this article is to consider whether PE pre-service teachers are trained during short training sessions aimed to discover new physical activities. We examine the influence of a scaffolding procedure (CLS design) on PE pre-service teachers’ knowledge, skills and self-efficacy in comparison to a CL and a DI experience. This leads to consider to what extent this instructional support provided by the instructor would help pre-service teachers to perceive themselves as self-efficacious to teach contents in PE.

Participants and design: After a pre-test, sixty-nine PE pre-service teachers were randomly assigned to one of the three following conditions: CL (14 males and 7 females); CLS (20 males and 8 females) or direct instruction condition (DI; 12 males and 8 females). For the training session a selected CL procedure (Jigsaw) [Aronson, Elliot, and Shelley Patnoe. 1997. The Jigsaw Classroom: Building Cooperation in the Classroom. 2nd ed. Wokingham: Addison-Wesley Educational]) was used to split CL and CLS participants into mixed-sex teams, whereas DI participants practiced the same exercises in dyads. According to the training conditions, the same instructor provided different information to participants along the three 2-hour instructional sessions with regard to: (a) warm-up (DI), (b) CL organization (CL), and (c) scaffolding integrated into a CL implementation (CLS).

Data collection: A Pre-test/post-test design was used to consider PE pre-service teacher’s motor skill, knowledge for practice, and self-efficacy improvements. The post-test also examined participants’ pedagogical knowledge.

Findings: The results showed that the participants in the three conditions progressed on performance, knowledge for practice, knowledge for teaching, and self-efficacy. Although no difference was found in self-efficacy between the three training conditions over time, significant differences appeared on pedagogical knowledge or/and motor skills with an advantage for the CL and CLS participants, respectively.

Conclusion: Although short training sessions dedicated to discovering new sports stay problematic for teacher professional development, implementing CL pre-service teacher training designs would be a relevant alternative. Instructional knowledge would be developed mainly when they have explicitly access to information concerning the teacher intervention. Nevertheless, such a scaffolding procedure integrated into CL training designs would need to be applied repeatedly to various physical activities to have an impact on pre-service teachers’ self-efficacy.  相似文献   


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Background: Teachers’ important diagnostic abilities include noticing and interpreting students’ behaviors and learning processes. By focusing on noticing, I refer to the theoretical framework of professional vision. Professional vision includes the ability to notice what is occurring in complex classroom situations (selective attention) and the ability to give these events meaningful importance (knowledge-based reasoning).

Purpose: The purpose of this article is to investigate the noticing differences of groups with different expertise while they observe students’ activities in gym class.

Participants and setting: Sixty participants with different sport-specific and pedagogical expertise were asked to describe and interpret videotaped teaching sequences. Observational data were obtained from physical education classes. The focus was on motoric and social learning processes.

Research design: The groups were compared in a four-field design according to their observations and interpretations of students’ activities in gym class.

Data collection: The teaching sequences function as stimuli to activate selective attention and knowledge-based reasoning. The participants were questioned in guided interviews.

Data analysis: The participants’ comments were recorded, transcribed and analyzed based on qualitative content analysis. The analysis was performed with the software program MaxQDA. The comments were subsequently exported to the software program SPSS 20 for further analysis.

Results: By comparing groups with different sport-specific and pedagogical expertise, this study reveals new observation foci when people exclusively monitor students’ behaviors, not teachers’ behaviors, in authentic teaching situation along with different observation foci based on expertise.

Conclusions: The findings indicate that noticing is a characteristic of professionalization that should be given greater consideration in physical education teacher education (PETE) programs. Special observations tasks (e.g. focusing on social processes) and supplemental theoretical materials for specific issues in PETE programs that use video recordings could help improve learning to notice.  相似文献   


9.
Despite proprietary algorithms to account for differences, output from activity trackers worn on different wrists may not be comparable because individuals vary in their reliance on each hand during free-living activities.

Participants (n = 48) wore Fitbit Flex or Flex2 monitors on each wrist for three days. T tests, equivalence tests, and correlations were used to compare steps, Calories, distance, active minutes, and sleep duration recorded by dominant and nondominant wrist-worn monitors and effect sizes and mean absolute and percent difference were calculated.

The nondominant Flex2 monitor was not equivalent to the dominant wrist-worn monitor and recorded significantly more steps/day (absolute difference = 708), miles/day (0.3), and active minutes/day (7.9) than the dominant Flex2 monitor. For all variables, nondominant and dominant output was correlated (r>0.75).

Nondominant and dominant Flex2 monitors are significantly different, but there were small differences for Flex monitors. Research should investigate effects on behavior and replicate findings using other monitors.  相似文献   


10.
Background: Teaching for social good and inequity has been presented as needed in sport pedagogy research. However, very little is known how transformative pedagogical practices that teach for social good are implemented and sustained at the elementary level.

Purpose: This digital ethnographic study sought to describe one elementary school physical education (PE) teacher's attempt to employ transformative pedagogy (TP).

Method: Cochran-Smith's [1998. “Teaching for Social Change: Toward a Grounded Theory of Teacher Education.” In The International Handbook of Educational Change, edited by A. Hargreaves, A. Lieberman, M. Fullan, and D. Hopkins, 916–952. Netherlands: Kluwer Academic Publishers, 2004. Walking the Road: Race, Diversity, and Social Justice in Teacher Education. New York: Teachers College Press] pedagogical principles for social justice education (SJE) drove our data collection and analysis. Seven qualitative methods were employed to collect data about Harry's pedagogies, organizational structures, and the content he taught. These were formal and informal interviews, conversations, short films, document collection, social media accounts, and an electronic journal. Data were analyzed using both inductive and deductive methods [Patton 2015. Qualitative Research and Evaluation Methods. 4th ed. Thousand Oaks: Sage].

Findings: Harry's TP and the factors that facilitated and limited his practice were uncovered within five main themes: (a) creating communities of learners through restorative practice principles, (b) building on what students bring to school with them for a democratic curriculum, (c) teaching skills, bridging gaps, and the affective component, (d), working with communities in-between social justice illiteracy, and (e) utilizing diverse forms of assessment.

Conclusion: We confirmed that there is no best way to teach social justice through PE and that TP must be individual to the teacher. In addition, this study highlighted methods and pedagogies by which teachers could engage in TP. Finally, the study's findings implied how teacher educators might go about working with both preservice and inservice PE teachers with the goal that they focus on facilitating social justice through their pedagogical approach.  相似文献   


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Objective: To identify major patterns of physical activity (PA), sedentary behavior (SB) and sleeping (all self-reported), and their association with long-term mortality.

Methods: Cohort of 2,851 individuals aged ≥ 60 from Spain. Mortality was ascertain from 2003 up to July 2013. Patterns of PA, SB and sleeping were identified by factor analysis.

Results: During follow-up, 1,145 deaths occurred. The first pattern, named “sedentary and non-active pattern”, was characterized by long sleeping or lying time, and not doing even light PA (household chores or walking). The second pattern was named “active and non-sedentary pattern”, and was characterized long time devoted to vigorous activities, long walking time, and short seating time. Compared to those in the first quartile of the “sedentary and non-active pattern”, those in the highest quartile showed a 71% higher mortality (HR: 1.71; 95%CI: 1.42–2.07; p-trend:<0.001); it corresponds to being 6-year older. By contrast, being in the highest versus the lowest quartile of the “active and non-sedentary pattern” was associated with a 32% lower mortality (HR: 0.68: 0.57–0.82; p-trend:<0.001); it corresponds to being 4-year younger.

Conclusion: The “sedentary and non-active” pattern had a large impact on mortality. The “active and non-sedentary” pattern showed an opposite and slightly lower association.  相似文献   


12.
Background: A new national physical education (PE) curriculum has been developed in South Korea and PE teachers have been challenged to deliver new transferable educational outcomes in character development through PE. In one geographical area, in order to support teachers to make required changes, a Communities of Practice (CoP) approach to continuing professional development (CPD) was adopted. Rather than being based in a single-school, this CoP brought PE teachers together from a number of schools with the aim of sharing learning and impacting on pedagogies, practices and pupils’ learning in character development through PE.

Aims: To map and analyse the ways in which teachers (i) learnt about character education in a CoP, (ii) used this learning to inform their pedagogies and practices, and (iii) impacted on pupil learning in and beyond PE.

Method: The participants were a university professor, 8 secondary school PE teachers from 8 different schools and 41 pupils. Data collection was undertaken in two phases in Autumn 2014 and Spring 2015. In-depth qualitative data were collected in the CoP and the teachers’ schools using individual interviews, focus groups with pupils, observations of lessons, open-ended questionnaires and document analysis. Data were analysed using a constructivist revision of grounded theory.

Findings: There was clear evidence of teacher learning in the CoP and changes to their pedagogies and indirect teaching behaviours (ITBs). Pupils were also able to identify the new intended learning about character development at both cognitive and behavioural levels, although there was little evidence of understanding about or intention to transfer this learning beyond PE (which was the original aim of the Government’s character education initiative). Barriers to teacher and pupil learning are also discussed.

Conclusion: Teachers’ professional learning in the CoP impacted on the development of both teachers’ pedagogies and ITBs which then influenced pupils’ learning, however, linking teachers’ professional learning to pupils’ learning remains challenging. This study has added further insights into the complexity of the processes linking policy, teachers’ learning and pupils’ learning outcomes. While it was possible to trace clear pathways from the CoP to teachers’ learning, and in some cases to pupils’ learning, it was also apparent that a wide range of factors intervened to influence the learning outcomes.  相似文献   


13.
This study characterises the relationship between gait variability and speed in runners using data from trunk accelerations in each axis.

Twelve participants of varying fitness ran on the treadmill with three sessions of six randomly ordered self-selected speeds. A VO2max test was conducted on the fourth session. Running gait was tracked with inertial sensors. The occurrence of a mid-range speed was analysed for the anterior–posterior, vertical and lateral directional coefficient of variation (CV) of root mean square (RMS) acceleration data.

One participant with noisy gait signals was omitted. The results show all remaining participants consistently showed significant quadratic U-shaped relationships between vertical RMS CV acceleration and speed. Neither anterior–posterior nor lateral RMS CV acceleration were clearly related to speed. These least variable gait speeds were similar to estimates of optimal speed derived from minimum cost of transport with speed.

In conclusion, there exists a mid-range speed for each runner with the least variable gait in the vertical direction, and this occurred significantly more often than would be expected by chance (P < 0.05). However, there are no prominent patterns for the anterior–posterior and lateral directions. This finding supports anecdotal evidence from runners and coaches concerning gait consistency.  相似文献   


14.
Primary objective: Teacher evaluation is being revamped by policy-makers. The marginalized status of physical education has protected this subject area from reform for many decades, but in our current era of system-wide, data-based decision-making, physical education is no longer immune. Standardized and local testing, together with structured observation measures, are swiftly being mandated in the USA as required elements of teacher evaluation systems in an effort to improve school programs and student achievement. The purpose of this investigation was to document how this reform was initiated and the experiences of teachers, students and administrators, from three high school physical education programs, during initiation of this reform. Documenting how physical education programs respond to such reforms develops our understanding of top-down reform efforts and helps to identify conditions under which such reforms have the intended effect on physical education teachers and student learning in physical education.

Theoretical framework: Fullan’s three phases of school change has been used to analyze and guide school change efforts in several subject areas including physical education. The phases are initiation, implementation and institutionalization. This study is situated primarily within the first phase of school change, the initiation phase.

Methods and procedures: This study took place over a 21-month period in 3 suburban school districts in a northeast metropolitan area of the USA. Interviews with district physical education administrators, high school physical education teachers and students were conducted. Field notes of physical education classes, informal interviews and related artifacts including pre- and post-physical education assessments were collected. To ensure trustworthiness, several steps were taken including member checks, triangulation and peer review. The data were analyzed to find common themes and patterns using the constant comparative method.

Results: Several themes emerged: (1) changes in curriculum and assessment; (2) effect on administrators; (3) stakeholder apathy and (4) department collaboration.

Conclusion: Changes, although minor, did take place in the wake of this top-down teacher reform; however, additional research needs to be completed to determine whether or not these changes are meaningful or long lasting.  相似文献   


15.
Purpose: To determine the accuracy of critical power (CP) and W? (the curvature constant of the power-duration relationship) derived from self-paced time-trial (TT) prediction trials using mobile power meters to predict 16.1-km road cycling TT performance. This study also aimed to assess the agreement between functional threshold power (FTP) and CP.

Methods: Twelve competitive male cyclists completed an incremental test to exhaustion, a FTP test and 4–5 self-paced TT bouts on a stationary bike within the lab, and a 16.1 km road TT, using mobile power meters.

Results: CP and W? derived from the power-duration relationship closely predicted TT performance. The 16.1-km road TT completion time (26.7 ± 2.2 min) was not significantly different from and was significantly correlated with the predicted time-to-completion (27.5 ± 3.3 min, = 0.89, < 0.01). CP and FTP were not significantly different (275 ± 40 W vs. 278 ± 42 W, > 0.05); however, the limits of agreement between CP and FTP were 30 to -36 W.

Discussion: The findings of this study indicate that CP and W? determined using mobile power meters during maximal, self-paced TT prediction trials can be used to accurately predict 16.1-km cycling performance, supporting the application of the CP and W? for performance prediction. However, the limits of agreement were too large to consider FTP and CP interchangeable.  相似文献   


16.
Background: Teachers in various countries worldwide have been confronted with the placement of students with disabilities in general classes, and the need to provide them with support and adapted physical education (APE). However, physical education (PE) teachers often do not feel prepared or self-confident enough for this inclusion. While a considerable amount of research has been identified, researchers have emphasized a need for additional studies that can shed more light on the influencing factors relevant to shaping teachers’ attitudes towards inclusion, as well as on their inclusion practices.

Purpose: The current article aims to provide a narrative summary of international research perspectives and findings regarding PE teachers’ attitudes and self-efficacy (SE) toward inclusion, as well as to develop a model for conducting further research.

Design: A narrative literature review was performed, based on a search of the databases SPORT Discus and MEDLINE (combined via EBSCO host and screened for peer-reviewed academic journals only), and Google Scholar. The search used the following terms: physical education teachers, inclusion, disability, and attitudes or SE. The narrative review begins with setting the scope of this topic via definitions and theoretical frameworks used to enable the understanding of attitudes and SE within inclusive PE. The Social Learning Theory (SLT) and the Theory of Planned Behavior (TPB) were outlined in order follow up with an explanation of the link between attitudes and SE. In the next section, the literature on attitudes and SE of PE teachers is presented. This section is comprised of subsections describing the development of instruments and their utilization in the field of study, as well as contextual variables influencing PE teachers’ attitudes and SE toward inclusion.

Findings: Seventy-five articles were included in total, of which 54 discussed research on teachers’ attitudes towards inclusive PE, 12 were related to research on teachers’ SE (three of which also included research on teachers’ attitudes towards inclusion), and 12 were considered reviews or viewpoints. The article ends with a model, including the following parts: background variables (regarding teachers’ personal attributes, school attributes, and disability attributes); moderating variables (attitude and SE); and, teachers’ behavior toward inclusion, all of which are interrelated and include a feedback loop. This model can be used for designing future research, as well as evidence-based interventions aimed at facilitating teacher training toward inclusion.

Summary for practitioners: From a practical point of view, educational inclusion practitioners should be aware of several factors influencing attitudes and/or SE while engaging in inclusion of children with disabilities in PE: (a) The teachers’ volume and type of experience with persons with disabilities at school, in the family or in the community; (b) The professional and academic training toward inclusion; (c) Individual factors, including gender; (d) School environmental factors, such as a process rather than performance orientation; and, finally, (e) The type and degree of disability.  相似文献   


17.
Background: Student voice agendas have been slow to permeate higher educational institutions. Curricula in universities, like those in primary and secondary education, are still usually made for students by teachers who, while they may have the best interests of the students in mind, rarely if ever engage students in curriculum decision-making. The need for more equitable, dialogic and democratic engagement by students is particularly relevant in the context of teacher education. It has been argued that pre-service teachers should experience democratic practices during their teacher education experiences in order to have the confidence, knowledge and skills to support democratic opportunities in schools.

Purpose: Through the participatory action research project described in this paper we sought to position pre-service teachers as pedagogical consultants who would design feedback strategies, gather feedback with faculty and co-construct physical education teacher education (PETE) curricula. We saw this process as a democratic possibility that might create opportunities for pre-service teachers to critique and transform their own educational experiences. In this paper we detail the process we used to support dialogue about teaching and learning between students and faculty members and draw on the perspectives of the students, pedagogical consultant, lecturer and teaching and learning advocate involved in this project.

Participants and setting: The project was undertaken with one cohort (77) of pre-service teachers during the final year of a four-year undergraduate PETE programme in an Irish university and focuses on the democratization of one PETE course.

Data collection: Data were generated with and by the pre-service teachers, the pedagogical consultant, the lecturer and the regional teaching and learning advocate. The primary data collection methods were interviews and observation.

Data analysis: The data were reviewed repeatedly looking for patterns, themes, regularities, paradoxes, variations, nuances in meaning and constraints [Rubin and Rubin 1995. Qualitative Interviewing. The art of Hearing Data. London: Sage]. The authors coded all data sets independently using constant comparison [Glaser 1965. “The Constant Comparative Method of Qualitative Analysis.” Social Problems 12 (4): 436–445] and then shared their processes and subsequent codes. Our analysis engages Greene’s [1988. The Dialectic of Freedom. New York: Teachers College Press] dialectical theory, to explore how naming and holding the tensions involved in this research and pedagogical enterprise was not stultifying but generative.

Findings: Three key dialectics were constructed from the data: student–teacher, critical reflection–learning and responsibility–accountability. We speak to each of these themes from the perspectives of the students, the pedagogical consultant and the lecturer who participated in this project.

Discussion and conclusion: Our discussion turns to the challenges and benefits associated with the pursuit and realization of democratic possibilities in PETE.  相似文献   


18.
The objective was to systematically review the literature on risk factors and prevention programs for musculoskeletal injuries among tennis players. PubmedMedline, Embase, CINAHL, Cochrane, SportDiscus were searched up to February 2017. Experts in clinical and epidemiological medicine were contacted to obtain additional studies.

For risk factors, prospective cohort studies (n > 20) with a statistical analysis for injured and non-injured players were included and studies with a RCT design for prevention programs. Downs&Black checklist was assessed for risk of bias for risk factors. From a total of 4067 articles, five articles met our inclusion criteria for risk factors. No studies on effectiveness of prevention programs were identified. Quality of studies included varied from fair to excellent.

Best evidence synthesis revealed moderate evidence for previous injury regardless of body location in general and fewer years of tennis experience for the occurrence of upper extremity injuries. Moderate evidence was found for lower back injuries, a previous back injury, playing >6hours/week and low lateral flexion of the neck for risk factors. Limited evidence was found for male gender as a risk factor.

The risk factors identified can assist clinicians in developing prevention-strategies. Further studies should focus on risk factor evaluation in recreational adult tennis players.  相似文献   


19.
Background: In the U.S. college/university setting, physical activity courses are often offered as part of the general education program, where students earn college credits towards the completion of their degree program. These courses are typically taught by graduate teaching assistants (GTAs), who face several challenges in instructing undergraduate students. Often, GTAs are thrust into their roles without the preparation that traditional teachers receive as customary with education degrees. Literature on need supportive teacher training, as part of self-determination theory, indicates that teachers including GTAs, can be successfully trained to meet the needs of their students regardless of years of previous experience. Presently, there is little information on the impact of such a training program from the perspective of the GTAs participating in the program.

Purpose: The aim of this study is to provide in-depth perspectives on need supportive training through examination of GTAs reflections of the training process.

Participants and setting: Fourteen GTAs from a university physical activity and healthful living program were recruited for this study, but two dropped out. All participants taught one of the following courses: aerobics, basketball, body conditioning, bowling, flag football, golf, racquetball, soccer, tennis, ultimate frisbee, volleyball, or yoga.

Data collection: Teaching reflections were written by participants at the end of a year-long training program.

Data analyses: Written reflections completed by the GTAs were analyzed via content analysis. Data were organized by how strategies were implemented, most/least successful use of the strategies, and adherence to the training. Once organized, the data was examined by two different researchers independently and themes were shared with participants as part of the member checking process. Searches for negative cases were utilized during the analysis process as well.

Findings: Across the data, it was determined that the GTAs felt the training to be beneficial, influencing much of how they worked with students. Results suggested that GTAs found several ways to implement the reviewed need supportive teaching strategies, including giving students the choice of activities and group membership. They were also able to better respond to students’ negative affect and give explanatory rationales. Goal setting was a consistently used strategy by the GTAs; however, it was cited as one of the least successful strategies due to the inability to effectively follow-up on the goals made during classes with the students. Additionally, it was noted that the GTAs had difficulties with devising their own ways of implementing the strategies and relied heavily on the examples that were provided during their training sessions.

Conclusion: In better understanding, the perceptions of GTAs who engage in need supportive training programs, researchers can better gauge the effectiveness of such programs and how they can be improved. Future research should focus on how to help GTAs to engage in more creative ways of using need supportive teaching strategies in physical activity environments.  相似文献   


20.
Background: Emotional resilience can be vital to longevity in high-poverty school settings. Equally important to staying the course is the ability to remain motivated despite the unique challenges presented by teaching in high-poverty schools. Students within these schools need teachers who are able to manage their emotions and remain positive and optimistic, persist, remain confident, and continually focus on learning and self-improvement no matter their work environment. This study explored four PE teachers’ perceptions of their resilience teaching in high-poverty schools through the lens of resilience theory.

Research design: This study utilized an exploratory multiple case study design (Yin 2003). The main premise of the case study method is to better understand complex educational and social phenomena, while retaining the holistic and meaningful particularities of real-life circumstances (Yin 2003). Teacher interviews and teacher shadowing were used to examine the experiences of PE teachers in high-poverty schools.

Findings: Results indicate that several psychological factors (relating to positive personality, motivation, focus, and perceived social and administrative support) protected the PE teachers in this inquiry from the potential negative effect of stressors by prompting their metacognitions and challenge appraisal. These processes promoted facilitative responses that proved to be key to developing and maintaining their capacities for resilience. The teachers demonstrated a sustained commitment to self-improvement and student success by implementing effective teaching practices.

Conclusion: The teachers in this study possessed strong individual dispositions and were able to demonstrate behaviors that facilitated an elevated level of resilience. School administrators must establish a strong culture of support to enable teacher resilience. Identifying ways to increase the resilience capacity of physical education teachers has the potential to decrease the concerns surrounding teacher attrition and increase job satisfaction for teachers working in high-poverty schools. Implications also indicate a need for physical education teacher education (PETE) programs to identify candidates with the individual dispositions that aid in resilience and provide them with experiences in high-poverty schools. This partnership may assist in minimizing the effects of reality shock oftentimes experienced by new teachers.  相似文献   


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