A review of population-based prevalence studies of physical activity in adults in the Asia-Pacific region

Background: Physical activity (PA) surveillance is an important component of non-communicable disease risk factor monitoring, and occurs through national and international surveillance systems. This review identifies population PA estimates for adults in the Asia-Pacific region, and examines variation in trends and prevalence rates obtained using different PA measures.

Methods: Data were obtained from a MEDLINE search; World Health Organization’s Global Health Infobase; Government websites and reference lists of relevant papers. Inclusion criteria included: national studies or those reporting large scale population-level data; data published from 2000 to 2010 and trend data prior; sample sizes over n = 1000, or fewer subjects in small nations.

Results: In total, 56 population surveys from 29 Asia-Pacific countries were identified. Data on ‘sufficient physical activity’ amongst adults were available from 45 studies (80%), with estimates ranging from 7% to 93% (median 62%, inter-quartile range 40%-85%). For 14 countries, estimates of ‘sufficient activity’ were documented in multiple surveys using different methods, with the largest variation from 18% to 92% in Nepal. Median or mean METminutes/ day, reported in 20 studies, ranged from 6 to 1356. Serial trend data were available for 11 countries (22%), for periods spanning 2-10 years. Of these, five countries demonstrated increases in physical activity over time, four demonstrated decreases and three showed no changes.

Conclusions: Many countries in the Asia-Pacific region collect population-level PA data. This review highlights differences in estimates within and between countries. Some differences may be real, others due to variation in the PA questions asked and survey methods used. Use of standardized protocols and measures, and combined reporting of data are essential goals of improved international PA surveillance.

Development of novel microsatellite markers for the invasive Northern Pacific seastar, Asterias amurensis

The Northern Pacific seastar, Asterias amurensis, is a benthic marine predator, which has recently established several invasive populations in Australian waters. To investigate population structure, diversity and patterns of connectivity, we isolated and characterised 27 microsatellite loci and tested their polymorphism based on 46 individuals from two invasive populations. The mean allelic richness was 4.33; observed heterozygosity was 0.42, while the percentage of polymorphic loci was 92.6%. The polymorphic markers will prove useful in the assessment of population genetic parameters, in both invasive and native A. amurensis populations.

Body image and self-esteem among Asian, Pacific Islander, and white college students in Hawaii and Australia

Body image and its relationship to self-esteem was examined among Asian, Pacific Islander, and White women and men from Hawaii and Australia (n = 172). Although Pacific Islander and White participants had higher body mass indices than Asians, Pacific Islanders were more satisfied than Asians with their health and more satisfied than Asians and Whites with their appearance. Thus, higher body weight and greater body satisfaction may co-occur among Pacific Islanders, whereas lower weight and lower body satisfaction may co-occur among Asians. The findings suggest different levels of risk for body image dissatisfaction, and its associated psychological consequences, across ethnic groups.

The development and consequences of multiculturalism : as exemplified by the Polish diaspora intelligentsia

This study analyses the way intellectuals within the Polish Diaspora or Polonia in Australia use writing as a means to integrate the community within the host society whilst creating a distinct ethnic community identity. By interviewing authors and analysing the relationship between the evolving characteristics of Polish writing and social policy this study brings to light the shortcomings of multiculturalism. The controversial policy experiment of multiculturalism has lost support as it failed to redress central issues of social equity and as I will show created new social problems which have yet to be overcome. The central argument of the study is that multiculturalism created a reactive social environment which encouraged Diaspora ethnocentrism in a way that has been detrimental to national unity. I show how and why this policy has failed to foster inter-culturalism and why a move towards integration can lead to greater social cohesion and equity in Australian society. I also explore the extent to which Diasporas such as the Polonia have been agents of social change rather than recipients.