Effects of a daily school based physical activity intervention program on muscle development in prepubertal girls

This 12-month prospective controlled intervention evaluated the effect of a general school based physical activity program on muscle strength, physical performance and body composition in prepubertal girls. Fifty-three girls aged 7–9 years involved in a school based exercise program [40 min/day of general physical activity per school day (200 min/week)] were compared with 50 age-matched girls who participated in the general Swedish physical education curriculum (mean 60 min/week). Body composition (DXA), isokinetic peak torque (PT) of the knee extensors and flexors at 60 and 180°/s, and vertical jump height (VJH) were assessed at baseline and 12 months. The annual gain in weight was similar between the groups, but there was a greater increase in total body and regional lean mass (P < 0.05) and fat mass (P < 0.01) in the exercise group. Mean gains in knee extensor PT at 60 and 180°/s were 7.0–7.6% greater in the exercise group (P ranging <0.05–<0.001). No significant differences were detected in VJH. In conclusion, increasing school based physical education to at least 3 h/week provides a feasible strategy to enhance the development of muscle strength and lean mass in prepubertal girls.

Looking after well siblings of adolescent girls with anorexia : an important parental role

Background Research has suggested that well siblings of children with chronic and life-threatening illnesses are at risk for negative outcomes and that parents’ responses to the illnesses can influence the adaptation of well siblings. Yet, parents’ efforts to look after well siblings in the context of illness are rarely considered in literature about sibling adaptation. The importance of attending to the needs of well siblings was a major theme to emerge from a qualitative analysis of the experiences of parents of adolescent girls with anorexia nervosa.

Methods In-depth interviews were conducted with 24 parents of adolescent girls with anorexia and analysed using grounded theory method.

Results The data indicated that parents viewed caring for well siblings in the context of anorexia as an important role and responsibility. Parents reported making conscious and active efforts to look after well siblings by: maintaining normality; compensating for changes to routines; protecting siblings; providing emotional support; and managing the consequences.

Conclusions This paper provides a picture of the actions parents take to help well siblings adapt to anorexia in the family. Further research is needed to develop and expand this understanding to families experiencing a wide range of chronic and life-threatening illnesses. The findings underline the importance of clinical attention and further research into the critical parental role of caring for well siblings.

Muscle determinants of bone mass, geometry and strength in prepubertal girls

Purpose: The aim of this study was to compare the relative contribution of peak muscle force (isokinetic peak torque) with surrogate estimates of muscle force, including leg lean tissue mass (LTM) and vertical jump height (VJH), on bone mass, geometry and strength in healthy prepubertal girls (n = 103).

Methods: Total leg and FN BMC and leg LTM were measured by DXA; the hip strength analysis program was used to assess FN diameter, cross-sectional area (CSA) and section modulus (Z). Isokinetic peak torque of the knee extensors and flexors (60°·s-1) were used as direct measures of peak muscle force. VJH was measured as an estimate of neuromuscular function. Total leg length or femoral length was used as a surrogate measure of moment arm length.

Results: All estimates of muscle function, except VJH, were positively associated with leg BMC (r = 0.72 - 0.90) and FN BMC, geometry and strength (r = 0.35-0.65) (all, P < 0.001). Multiple linear regression analyses revealed that leg LTM and isokinetic peak torque were independently and equally predictive of leg BMC and FN BMC, bone geometry and strength, explaining 8 to 28% of the variance in each of the bone traits after accounting for moment arm length. When isokinetic peak torque was corrected for both leg LTM and moment arm length, it remained an independent predictor of BMC, CSA and Z, but only accounted for an additional 2 to 5% of the variance.

Conclusion: These data suggest that DXA-derived leg LTM can be used as a reasonable surrogate for isokinetic peak muscle forces when assessing bone strength in relation to muscular function in healthy pre-pubertal girls.

Dolly girls : tweenies as artefacts of consumption

The apparent sexualization and exploitation of young girls by the consumer media is a much debated topic in the advanced liberal democracies. This paper will develop the argument that the ‘consumer-media culture’ has established itself as one of the most powerful influences in processes of self-formation for young people, and that a tweenie self can be understood as an artefact of consumption. We will identify and analyse the resources that the consumer media provides to tweenies - girls aged between 9 and 14 - as they seek to fashion a sense of self. The paper presents an analysis of the resources presented to this population of young girls/women by an Australian ‘appearance’ magazine, Dolly. We will argue that these identity resources are limited in scope, are dominated by images of young, slim and attractive females, and position the tweenie self as an artefact of consumption.

Digital media and girling at an elite girls' school

In this article, I draw on Judith Butler's notion of performativity to investigate the role of digital technologies in processes of gendered subjectification (or ‘girling’) in elite girls' education. Elite girls' schooling is a site where the potential of digital technologies in mediating student‐led constructions and explorations of ‘femininity’ sits alongside school‐produced digital media in the form of promotional texts, in which young femininity is regulated by discourses of ‘girl power’. Whilst such schools are well equipped with digital resources that might be utilised towards students' interrogation of how ‘femininity’ is understood, thus politicising the girling process, school‐produced digital media inscribe a more prescriptive picture of ‘who’ an elite school‐girl can ‘be’. Lyla Girls' Grammar School (LGGS) is an elite secondary school in Melbourne, Australia. I report on research undertaken at two institutional levels of LGGS: the ‘school’ level in which digital media representations of young women are produced by the school and the ‘classroom’ level, in which media education pedagogy includes interactive web conferencing software. The use of digital technologies in media education appeared to support student‐led construction and interrogation of femininities to some extent. I argue that this kind of student‐led girling is important in the context of more prescriptive school‐level girling practices.

'Go Grrrl!' : constructions of femininity in the textual practices of elite girls' schooling

In this paper I consider the utility of discourses of ‘girl power’ for understanding, and complicating, the way youthful femininities are produced in schooling. The paper is concerned with expanding the possibilities for how queer theoretical resources might be utilized within studies of girls and schooling. Existing studies have drawn upon Judith Butler’s notion of a ‘heterosexual matrix’ for understanding, and attending to, the way normative discourses of heterosexuality underpin the school-based production of youthful femininities. The term ‘heterofemininities’ has been used in order to label these school-produced intersections of sex/gender/sexuality. Drawing on discourses of ‘girl power’ that gather around ‘voice’ and responsibility, I propose that the production of ‘hetero-femininities’ within educational contexts might be further explored, and thus complicated, when the significance of discourses of ‘girl power’ is considered. I analyse young women’s discussions of key ‘girl power’ icons in popular culture, generated through fieldwork in an elite girls’ school in Australia. In this analysis I explore the intersections of gender/sexuality/girl power that are produced in the young women’s textual practices.

Cosmo girls : new configurations of class and femininity in elite educational settings

In this paper we offer a unique contribution to understandings of schooling as a site for the production of social class difference, by bringing together recent work on middle-class educational identities in neoliberal times (O’Flynn and Petersen 2007, Reay et al 2007, 2008) with explorations of classed femininity from the field of critical girlhood studies (Harris 2004, Ringrose and Walkerdine 2008). Drawing on data generated in two recent research projects in Australia and the UK our aim will be to explore how class mediates the construction of young femininities in the private girls’ school. Our particular focus will be on exploring how articulations of identity within such schools are configured through discourses of mobility and global social responsibility. In line with the broader ‘cultural turn’ in the social sciences (Devine 2005) we discuss class and femininity in this paper in cultural and symbolic terms. We draw on Butler’s (1993) notions of performativity to understand the multiple and processual nature of identity constitution and Bourdieu’s (1987) understandings of class (based on symbolic struggles for capital in social space) to enable us to explore the ‘subjective micro distinctions’ through which class is expressed, embodied and lived; viewing class as a set of fictional discourses that inscribe and produce identities (Walkerdine et al 2001). This understanding of class, as something that is ‘done’ rather than something that ‘we are’, was deemed particularly important in these studies of elite education, for the research was undertaken in schools where class was apparently ‘everywhere and nowhere’, never named or ‘directly known as class’ (Lawler 2005, Skeggs 2004). This underplaying of class identity is often linked to neo-liberalism, and in this paper we would like to link these constructions of ‘the private school girl’ with neoliberal subjectivity by focusing on two main characteristics. First we will consider the notion of mobility, where we will discuss the ways in which these girls constructed themselves as ‘cosmo’ girls (global citizens at ease with traversing national borders) and the ways in which the schools supported this through educational practices which enabled the students and their families ‘to exploit and strategically pursue economic and cultural capital’ (Doherty et al 2009). We will also focus on the struggles that the schools and students encountered as they attempted to juggle these discourses of global mobility with more traditional discourses of privilege (often associated with national boundaries and based within a predominantly British model of schooling steeped in colonial history). Second, we will look at discourses of responsibility, to explore how these girls were incited to take responsibility for themselves and their futures but also to embrace diversity and to commit themselves to social service. We will also examine the competing discourses of instrumentalism and social justice that were at play in these schools.