Healthy bodies: construction of the body and health in physical education

In physical education, bodies are not only moved but made. There are perceived expectations for bodies in physical education to be ‘healthy bodies’—for teachers to be ‘appropriate’ physical, fit, healthy and skilful ‘role models’ and for students to display a slim body that is equated with fitness and health. In teachers’ monitoring of students with the intention of regulating health behaviour, however, the surveillance of students’ bodies and associated assumptions about health practices are implicated in the (re)production of the ‘cult of the body’. In this paper, we consider issues of embodiment and power in a subject area where the visual and active body is central and we use data from Australian and Swedish schools to analyse the discourses of health and embodiment in physical education. In both Swedish and Australian physical education there were discourses related to a fit healthy body and an at risk healthy body. These discourses also acted through a range of techniques of power, particularly regulation and normalisation.     

Commentary on research into learning in physical education: towards a mature field of knowledge

In this commentary, I consider each of the papers in this special issue in regard to their contribution to a debate on the nature of learning in physical education (PE). I also discuss how we might take this aspiration further by moving beyond a ‘mere’ debate over learning theories to a knowledge building process in which knowledge claims are ‘tested’ against their compatibility (or non-compatibility) with other ‘knowings’. In this regard, I introduce the idea of vertical integration or compatibility as a consideration for building a more mature field of study of learning in PE.     

Childhood single skinfold thickness is a better predictor for adult relative fat mass in females than the body mass index: Data from a 30-year longitudinal growth study

Abstract

Information on the prediction of adult relative fat mass (percent body fat,%BF) using measures from pre-pubertal ages and early childhood is scarce. In the present longitudinal study, we assess the development of different anthropometric indicators of percent body fat during childhood, adolescence, and adulthood in 37½-year-old females stratified for low and high percent body fat. Consequently, we study the predictability of percent body fat based on simple anthropometric measurements during childhood and adolescence.

Anthropometric data from the Belgian longitudinal experimental growth study “LEGS” were used. Beginning in 1969, five yearly cohorts of about 100 individuals each (mean age 6 years) were recruited in public kindergartens. Of the original 515 participants (260 males, 255 females) that were measured annually from age 6 to 18 years, 59 males and 60 females agreed to participate in a follow-up study in 2004. During the follow-up measurements, the participants were invited for a body-composition assessment by bioelectrical impedance analysis (BIA). We stratified the participants into low (%BF-BIA < 35%) and high (%BF-BIA≥35%) relative fat mass samples. Pearson correlations were calculated and used as tracking coefficients. Multiple stepwise linear regression was applied with anthropometric variables at each age separately as predictors for adult percent body fat, expressed as%BF-BIA, %BF-Segal, and %BF-D&W (Durnin & Womersley, 1974).

The results indicate that a single skinfold thickness during adolescence is a better predictor for adult percent body fat than adolescent body mass index. Additionally, our results suggest that this holds during childhood as early as from age 8 onwards. The use of single skinfold measurements as predictors for adult adiposity and obesity is supported by other arguments, including: (1) body mass index as a proxy for overweight does not discriminate between fat mass and fat-free mass, and (2) an excess of adipose tissue is more strongly associated with morbidity than the body mass index.