Understanding key performance indicators for breast support: An analysis of breast support effects on biomechanical,physiological and subjective measures during running

To assess the effectiveness of breast support previous studies monitored breast kinematics and kinetics, subjective feedback, muscle activity (EMG), ground reaction forces (GRFs) and physiological measures in isolation. Comparing these variables within one study will establish the key performance variables that distinguish between breast supports during activities such as running. This study investigates the effects of changes in breast support on biomechanical, physiological and subjective measures during running. Ten females (34D) ran for 10 min in high and low breast supports, and for 2 min bare breasted (2.8 m·s^?1). Breast and body kinematics, EMG, expired air and heart rate were recorded. GRFs were recorded during 10 m overground runs (2.8 m·s^?1) and subjective feedback obtained after each condition. Of the 62 variables measured, 22 kinematic and subjective variables were influenced by changes in breast support. Willingness to exercise, time lag and superio-inferior breast velocity were most affected. GRFs, EMG and physiological variables were unaffected by breast support changes during running. Breast displacement reduction, although previously advocated, was not the most sensitive variable to breast support changes during running. Instead breast support products should be assessed using a battery of performance indicators, including the key kinematic and subjective variables identified here.     

A meta-analysis of maturation-related variation in adolescent boy athletes’ adaptations to short-term resistance training

This meta-analysis investigated the maturation-related pattern of adaptations to resistance training in boy athletes. We included studies examining the effects of 4–16-week resistance training programmes in healthy boy athletes aged 10–18 years. Pooled estimates of effect size for change in strength across all studies (n = 19) were calculated using the inverse–variance random effects model for meta-analyses. Estimates were also calculated for groups based on likely biological maturity status (“before”, “during” and “after” peak height velocity). Using the standardised mean difference, resistance training increased strength across all groups (effect size = 0.98, [CI: 0.70–1.27]). Strength gains were larger during (1.11 [0.67–1.54]) and after (1.01 [0.56–1.46]) peak height velocity than before (0.5 [?0.06–1.07]). Adaptations to resistance training are greater in adolescent boys during or after peak height velocity. These findings should help coaches to optimise the timing of training programmes that are designed to improve strength in boy athletes.     

Bringing the State Back In: restoring the role of the State in Chinese higher education

In the last few decades, in the wake of three major crises in political faith and the overall instability that followed the end of the Cultural Revolution, the post-Mao Chinese government has sought to improve the lives of its citizens and to restore political legitimacy through rapid economic growth that has focused almost exclusively on GDP. This strong focus has brought about rapid, widespread economic growth to China, and has, by classical market standards, been a success. At the same time, issues of social development and human well-being have received less attention. Before the Hu-Wen leadership's formal accession to power, the Jiang-Zhu administration sought to adopt neo-liberal ideas and practices to reform the delivery of social services and the implementation and funding of social policy. In this context, major fields of social policy such as health, education, and housing have been going through the processes of marketisation and privatisation, which have placed much of the financial burden of meeting these social welfare needs on China's citizens. After several decades of privatisation and marketisation in the educational system, the Chinese government has been the subject of repeated criticism for failing to tackle what is popularly known as the ‘new three mountains phenomenon’, namely, the rising cost of health, education, and housing in recent years. Against the wider policy context described above, this article examines the social and political consequences of the privatisation and marketisation of education. It also discusses the major policies and strategies recently adopted by the Chinese government to restore the role of the State in the education system in order to address the negative consequences of the privatisation of education. Finally, it critically examines the main implications of major reforms undertaken in higher education in Mainland China.     

A conceptual change approach to staff development: A model for programme design

With the rapid expansion in tertiary education in the past decade, coupled with the rising emphasis on accountability, teaching quality has become an important issue in higher education worldwide. The increasing emphasis on quality has placed new demands on staff development, in particular to find promising models and methodologies that will guide development approaches. The paper describes an innovative approach to staff development that was synthesized from four theories about conceptual change or change in general. This conceptual change approach is based on the hypothesis that changing teachers' conceptions of teaching towards more elaborated levels will bring about improvement in their teaching practices. A short course derived from this model is outlined.     

Mobility and Composition: The Architecture of Coherence in Non-places

This paper considers how veterinary students compose narratives of patient care. The author discusses the labor required to uncover narrative agents and actions, arrange them in time, posit causal connections, and assemble the elements into a coherent narrative. Students quickly learn how much of this effort can be effectively offloaded to a dedicated infrastructure of cognitive resources and how much must be offloaded to less suitable resources, the latter of which incurs important cognitive costs.     

How much effort is needed to keep up with the literature relevant for primary care?

OBJECTIVES: Medicine must keep current with the research literature, and keeping current requires continuously updating the clinical knowledge base (i.e., references that provide answers to clinical questions). The authors estimated the volume of medical literature potentially relevant to primary care published in a month and the time required for physicians trained in medical epidemiology to evaluate it for updating a clinical knowledge base. METHODS: We included journals listed in five primary care journal review services (ACP Journal Club, DynaMed, Evidence-Based Practice, Journal Watch, and QuickScan Reviews). Finding little overlap, we added the 2001 "Brandon/Hill Selected List of Print Books and Journals for the Small Medical Library." We counted articles (including letters, editorials, and other commentaries) published in March 2002, using bibliographic software where possible and hand counting when necessary. For journals not published in March 2002, we reviewed the nearest issue. Five primary care physicians independently evaluated fifty randomly selected articles and timed the process. RESULTS: The combined list contained 341 currently active journals with 8,265 articles. Adjusting for publication frequency, we estimate 7,287 articles are published monthly in this set of journals. Physicians trained in epidemiology would take an estimated 627.5 hours per month to evaluate these articles. CONCLUSIONS: To provide practicing clinicians with the best current evidence, more comprehensive and systematic literature surveillance efforts are needed.