Considerations for the use of functional principal components analysis in sports biomechanics: examples from on-water rowing

The proliferation of new biomechanical technology in laboratory and field settings facilitates the capture of data-sets consisting of complex time-series. An understanding of the appropriate statistical approaches for analysing and interpreting these data-sets is required and the functional data analysis (FDA) family of statistical techniques has emerged in the biomechanical literature. Given the use of FDA is currently in its infancy with biomechanical data, this paper will form the first of a two part series aiming to address practical issues surrounding the application of FDA techniques in biomechanics. This work focuses on functional principal components analysis (fPCA), which is explored using existing literature and sample data from an on-water rowing database. In particular methodological considerations for the implementation of fPCA such as temporal normalisation of data, removal of unwanted forms of variation in a data-set and documented methods for preserving the original temporal properties within a set of curves are explored in detail as a part of this review. Limitations and strengths of the technique are outlined and recommendations are provided to encourage the appropriate use of fPCA within the field of applied sports biomechanics.     

Are you a budding academic writer?

Academic writing can seem a daunting prospect although with the right support and information it can be more achievable than you think. In this first set of editorial comments of 2016, editors from all sections of the Health Information and Libraries Journal outline the origins of the individual section of the journal which they oversee and highlight some of the things you might want to consider when thinking of submitting your writing for publication.     

‘I'm always up against a brick wall with them’: parents' experiences of accessing support for their child with a newly recognised developmental disorder

Three of the most prevalent developmental disorders (DDs) are autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD) and fetal alcohol spectrum disorder (FASD). As part of a study screening for DDs in Greater Manchester, UK, a unique opportunity was taken to explore parents' experiences of receiving reports about their child's previously unrecognised DD. Six parents out of a possible 16 took part in interviews, which were analysed thematically. Findings drawn from parental responses revealed a number of barriers to accessing support for their child's additional needs, including perceived resistance from schools, particularly for quiet, well-behaved girls, and difficulty in accessing assessment or referrals. There needs to be greater awareness of additional needs in children without externalising behaviours, the presence of gender-specific differences in the presentation of DDs, and FASD as a commonly occurring DD. Ultimately, better support for children with DDs would reduce the burden of unmet needs for the children and their families, and for wider services.     

Deliberative Democracy, Diversity and the Challenges of Citizenship Education

For democracies to thrive, citizens have to be taught to be democrats. How do people learn to be democrats in circumstances of diversity and plurality? We address this question via a discussion of three models of deliberative democracy: public reason (as exemplified by Rawls), discursive democracy (as exemplified by Benhabib) and communicative democracy (as exemplified by Young). Each of the three theorists contributes to an account of how to educate citizens by teaching talk. Against a commonly held assumption that the protection of diversity in a pluralist democracy requires a thin conception of citizenship education, we defend a thick conception that simultaneously fosters autonomy and participation without sacrificing tolerance of diversity.     

Effects of Diverse STEM Role Model Videos in Promoting Adolescents’ Identification

International Journal of Science and Mathematics Education - Role models are critical for broadening participation in science, technology, engineering, and mathematics (STEM); however, little is...