Reliability of 2 Different Positioning Protocols for Dual-Energy X-ray Absorptiometry Measurement of Body Composition in Healthy Adults

Journal of Clinical Densitometry : the Official Journal of the International Society for Clinical Densitometry
Ava KerrAlisa Nana

Abstract

Dual-energy X-ray absorptiometry (DXA) is an accepted time-efficient method of body composition assessment for total body and regional fat mass (FM), lean mass (LM), and bone mineral content (BMC), but for longitudinal monitoring the measurements must be sufficiently reliable. The aim of this study was to compare the reliability of a new positioning protocol (Nana et al) with the current reference (National Health and Nutrition Examination Survey [NHANES]) protocol and investigate their within-protocol precision. Thirty healthy adults (16 females and 14 males) underwent 4 whole-body DXA scans in succession with full repositioning between scans. The scan order was randomized, with 2 scans undertaken in accordance with the current NHANES protocol and 2 using the Nana et al protocol. Magnitudes of typical errors of measurement and changes in the mean of DXA body composition estimates were assessed as standardized effect sizes. The Nana et al protocol repositioning produced trivial typical errors for total body across all LM estimates except for FM in the arms and trunk which were moderately substantial. The NHANES protocol produced similar typical errors for all measurements in LM except for FM and BMC in the trunk and arms which ...Continue Reading

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Citations

Nov 12, 2016·Nutrition in Clinical Practice : Official Publication of the American Society for Parenteral and Enteral Nutrition·Levi M TeigenCarrie P Earthman
May 5, 2018·Critical Care Medicine·Kitty S ChanUNKNOWN National Institutes of Health National Heart, Lung, and Blood Institute (NHLBI) Acute Respiratory Distress Syndrome (ARDS) N
Oct 17, 2018·Clinical Physiology and Functional Imaging·Matthew M SchubertJames K Taylor
Jan 12, 2019·International Journal of Sport Nutrition and Exercise Metabolism·Carl PerssonJames Furness
Jul 3, 2019·Scandinavian Journal of Medicine & Science in Sports·Marietta SengeisAlfred Führhapter-Rieger
Sep 6, 2017·International Journal of Sport Nutrition and Exercise Metabolism·Flinn ShielBen Schram
Oct 14, 2018·BMC Musculoskeletal Disorders·Andreas Lundberg ZachrissonStefan Grau
Apr 9, 2021·The American Journal of Clinical Nutrition·Grace L RoseMia A Schaumberg
Nov 14, 2020·International Journal of Sport Nutrition and Exercise Metabolism·Ava FarleyKaren Hind
Jun 6, 2021·BMC Sports Science, Medicine and Rehabilitation·Luke HogarthMark McKean
Sep 8, 2021·International Journal of Sport Nutrition and Exercise Metabolism·Thomas Birkedal StenqvistMonica Klungland Torstveit

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