Karate is a widely practiced combat sport. Karatekas’ body composition has typically been obtained in small groups using skinfolds or bioelectric impedance. In this work, we assessed three-compartment the accurate dual-energy X-ray absorptiometry technique (QDR Horizon, Hologic) large sample (n = 58; 74% males) of black belt karatekas. Stature-adjusted indices (fat mass index; fat-free bone min...

An inverse dynamics multi-segment model of the body was combined with optimisation techniques to simulate normal walking in the sagittal plane on level ground. Walking is formulated as an optimal motor task subject to multiple constraints with minimisation of mechanical energy expenditure over a complete gait cycle being the performance criterion. All segmental motions and ground reactions were...

Published as part of the Accounts of Chemical Research special issue “Lead Halide Perovskites for Solar Energy Conversion”. David A. Egger,*,† Andrew M. Rappe,*,‡ and Leeor Kronik*,† †Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth 76100, Israel ‡The Makineni Theoretical Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania...

The risk of osteoporosis and cardiovascular disease increase significantly with age. Because of the long silent latency of these diseases, there is the opportunity for primary prevention before clinical symptoms occur. The newer fan beam dual energy x-ray absorptiometry (DXA) systems can detect vertebral fractures with fast, low dose lateral scans of the vertabrae from T4 to L4 in as little as ...

Significant improvements in dual-energy X-ray absorptiometry (DXA) concerning quality, image resolution and image acquisition time have allowed the development of various functions. DXA can evaluate bone quality by indirect analysis of micro- and macro-architecture of the bone, which and improve the prediction of fracture risk. DXA can also detect existing fractures, such as vertebral fractures...

BACKGROUND AND OBJECTIVE An early detection of osteoporosis through DEXA procedure will not only improve the disease management practices but also would help in impeding national productivity losses by mass screening and awareness. Our objective was to measure efficacy of DEXA procedure in early detection of osteoporosis and prevention of its complications. METHODS This case series observatio...

Background: To investigate the clinical values and relationships of bone turnover markers (BTMs), dual-energy X-ray absorptiometry (DXA), quantitative computed tomodensitometry (QCT) in screening osteoporosis (OP) elderly Chinese males.

INTRODUCTION The assessment of body composition is relevant to establish nutritional status and identify potential health risks. OBJETIVE a) To develop regression equations to predict fat mass (FM) using a dual-energy X-ray absorptiometry as reference method; b) to propose reference FM values based on chronological and biological age for Chilean children and adolescents. METHODOLOGY Cross-s...