Comparison of Body Composition Estimates among Norland Elite®, Lunar iDXA®, and the BodPod® in Overweight to Obese Adults

ABSTRACT

Accurate body composition assessment, which includes fat mass (adipose tissue mass, FM), fat-free mass (FFM), and percent fat mass (%FM) is needed to evaluate health and treatment efficacy. The current study compared body composition estimates obtained from the Norland Elite® DXA, BodPod®, and iDXA® before and after a12-week exercise intervention in adults (n=30, BMI 25–35 kg/m²) . Bland-Altman methods determined mean bias and limits of agreement for FM, %FM, and FFM between methods. Compared to the iDXA® and BodPod®, Elite® overestimated BF% and FM (P < .01). FFM was similar between iDXA® and Elite® but lower in Elite® than BodPod® (P < .01). There were no differences between methods in changes in FM or FFM after the exercise intervention. Prior to this study, it was unknown how the Norland Elite®, a DXA model marketed to bariatric surgery patients, compared to other common body composition assessment methodologies..     

The effect of playing status,maturity status,and playing position on the development of match skills in elite youth football players aged 11–18 years: A mixed-longitudinal study

This mixed-longitudinal study examined the development of match skills in elite male youth footballers (aged 11–18 years), while considering the effect of playing status, maturity status, and playing position. Across two seasons, 126 elite male youth footballers were assessed in 1–10 competitive matches (401 player-matches). For each match, the on-the-ball actions of each player were recorded using a notation system. The match skills observed were frequencies of successful passes, on-target shots, dribbles, crosses, clearances, and tackles/blocks/interceptions. Multilevel Poisson analysis was used to model the development of players, with regard to each match skill. Modelling revealed significant (p?p?p?p?p?相似文献   

‘The Most Respectable Looking of Revolutionaries’

Abstract

New political histories of late nineteenth-century British political culture have closely analysed the role of language and rhetoric in popular politics. The focus on the content of political messages has meant that the ways such messages were communicated has often been overlooked, as have the varied forms of political communication in the period. This article follows on from recent work that has sought to examine the place of material and visual culture in popular politics in the period. In particular, it focuses on the links between dress, class and politics. It suggests that visual, along with material, forms of political communication remained important and that they illuminate the political culture of the period.     

Modeling the appeal of movie features to demographic segments of theatrical demand

Various studies have built models, using aggregate box-office data, to predict the contribution of a motion picture’s features to its theatrical demand. But such an approach fails to represent the heterogeneous influence of movie features on demographic groups and is unable to assist market-segmentation decisions. We propose and illustrate a new approach for modeling the appeal of movie features to market segments via the use of appropriate individual-specific data and canonical correlation analysis. Specifically, through demographically detailed movie-attendance data available in Spain, we build a model of how movie features influence the demographic composition of audiences. Via a canonical correlation analysis, we identify four dimensions underlying the relationships between several movie features (country of origin, genre, objectionable content, stars, promotional effort, and critical evaluations) and audience demographics (gender, age range, presence of children, education, social class, and size of municipality). These dimensions represent the strong pairings between four moviegoer demographic profiles and four movie-feature profiles. Our approach can potentially aid in segmentation and green-lighting decisions by matching movie features with the most relevant segment-specific preferences.     

Mobile learning for early reading in Cambodia

Education and Information Technologies - This paper reports on a mixed-methods study of the Total Reading Approach for Children Plus (TRAC+) program, with a particular focus on its mobile learning...