Aim The acculturation process presents numerous challenges that could benefit or adversely affect immigrants' health practices. The goal of this review was to present a systematic summary of studies examining the relationship between acculturation and physical activity among immigrants and ethnic minority populations. Subjects and methods Systematic review based on 44 original studies found in electronic databases (Psychinfo/ Psyndex, Eric, Pubmed/Medline, Web of Science, SportDiscus). Studies were eligible if they were written in English, German or French, incorporated a measure of acculturation and physical activity, exercise, or sport as independent and dependent variables, and provided statistical information to judge the level of significance. The 44 studies found included 760,242 participants. A narrative synthesis was performed. Causality of effects was examined based on seven criteria: consistency, strength of associations, specificity of effects, temporality, gradient, plausibility and experimental evidence. Results Acculturation was associated with higher leisure time physical activity in 57% of all studies (even after controlling for potential confounds), independent of participants' gender, age and ethnic background. The main limitations of this review are that findings were not weighted for sample size and that publication biases might have contributed to an overestimation of the relationships. Conclusion Prevention programs aimed at stimulating participation in physical activity among immigrants should give priority to individuals with low acculturation levels and it should consider culturally specific beliefs and constraints. Additionally, prevention programs could make an effort to promote acculturation among immigrants. Future studies should use longitudinal designs which include objective assessments of physical activity and which use multidimensional and bidirectional definitions of acculturation.

Background: Group work is often used in Physical Education (and Health -HPE). In this paper, we propose that despite: (1) its widespread use; (2) advances surrounding HPE models that utilize group strategies; and (3) a significant amount of literature dealing with group work in other school subjects, we do not have a particularly good theoretical understanding of group learning in HPE. Purpose: The purpose of this paper is to propose one way of conceptualizing individual learning in peer interaction based on three tenets of post-Vygotskian theory that relate to the zone of proximal development (ZPD); namely that in learning situations: (i) group members engage in shared communication; (ii) expert -novice relationships can develop and change during group activities and (iii) constructing knowledge can be thought of as reaching agreement. Participants and setting: Empirical material was generated with eight different HPE classes in lower and upper secondary schools in Sweden. Schools were selected in a way that maximized variation and were distributed across four geographic locations with varying sizes and types of communities. Data collection: Observational material was produced at each of the sites with the use of two cameras: one stationary and the other mobile. Stationary filming maintained a wideangled focus and captured the entire class. Mobile filming focused on different groups working within the classes. During mobile filming, between two and five students were generally in the frame and filming was directed at sequences in which a group of students worked together on a specific task. Data analysis: Analysis of the data focused on two kinds of incidents. The first comprised a sequence in which two or more students were interacting to complete a task which they could not immediately do and were engaged in collective signification by talking about or doing the activity in mutually compatible ways. These conditions were sufficient in our view to signal the creation of a ZPD. The second kind of incident fulfilled the first criteria but not the second -i.e. the students were interacting but not in mutually compatible ways. Findings: A post-Vygotskian interpretation of three group work sequences draws attention to: (i) the flexible and fluid nature of 'expertness' as it exists within groups; (ii) the unpredictable nature of member interactions and (iii) the challenging role that teachers occupy while trying to facilitate group work. Conclusion: Such an interpretation contributes to a growing understanding of group work and helps HPE practitioners to make the most of a teaching strategy which is already used widely in schools.

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In line with contemporary constructivist pedagogies, students are frequently expected to learn through interaction in physical education (PE). There is a relatively sophisticated body of literature focusing on learning in groups, peer teaching, and cooperative learning. Current research has not, however, focused on how the body is implicated in interactional learning. This is surprising given that much learning in PE is expected to take place in the physical domain. The aim of this paper is to contribute to current theorizing by examining social interactions in PE practice. By drawing on symbolic interactionist theory, we put forward a framework for considering how inter-student interactions occur in a multimodal sense. Key ideas relate to (1) the sequential organization of interactions; (2) the ways in which semiotic resources in different fields are used to elaborate each other; (3) the importance of interpretation as a driver of interaction; (4) the creation of local environments in which participants attend to and work together within a shared world of perception; and (5) the influence of material environments on social interaction. The specific concepts employed are epistemic ecology, epistemic position, and learning trajectory. The paper includes observational data from an investigation of learning in Swedish PE to demonstrate the explanatory power and limitations of the theoretical tenets presented. The paper is concluded with practical implications of understanding group work in a multimodal manner.

Background: Models-based approaches to physical education have in recent years developed as a way for teachers and students to concentrate on a manageable number of learning objectives, and align pedagogical approaches with learning subject matter and context. This paper draws on Hannah Arendt's account of vita activa to map existing approaches to physical education as oriented towards: (a) health and exercise, (b) sport and games, and (c) experience and exploration. Purpose: The aim of the paper is to outline a new pedagogical model for physical education: a practising model. We argue that the form of human activity related to practising is not well represented in existing orientations and models. To sustain this argument, we highlight the most central aspects of practising, and at the same time describe central features of the model. Relevance and implications: The paper addresses pedagogical implications the practising model has for physical education teachers. Central learning outcomes and teaching strategies related to four essential and 'non-negotiable' features of the practising model are discussed. These strategies are: (1) acknowledging subjectivity and providing meaningful challenges, (2) focusing on content and the aims of practising, (3) specifying and negotiating standards of excellence and (4) providing adequate time to practising. Conclusion: The practising model has the potential to inform new perspectives on pedagogical approaches, and renew and improve working methods and learning practices, in physical education.