Reliability and Precision of the Nana Protocol to Assess Body Composition Using Dual Energy X-Ray Absorptiometry.
The Nana positioning protocol is widely used to position participants to minimize technical error when undertaking body composition scanning and analysis with a Dual energy X-Ray absorptiometry (DXA) machine. Once biological and technical errors are accounted for, the only variation in test-retest r...
| Publicado en: | International Journal of Sport Nutrition & Exercise Metabolism Vol. 28; no. 1; pp. 19 - 26 |
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| Autores principales: | , , , , , , |
| Formato: | diagnostic images pictorial research tables/charts Journal Article |
| Publicado: |
Human Kinetics Publishers, Inc.
Jan2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=127731992&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 127731992 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 1526484X IJS jtl: International Journal of Sport Nutrition & Exercise Metabolism issn: 1526484X maglogo: N pubinfo: dt: Jan2018 vid: 28 iid: 1 pid: 553 pub: Human Kinetics Publishers, Inc. place: Champaign, Illinois artinfo: ui: 127731992 127731992 127731992 10.1123/ijsnem.2017-0174 127731992 ppf: 19 ppct: 7 formats: tig: atl: Reliability and Precision of the Nana Protocol to Assess Body Composition Using Dual Energy X-Ray Absorptiometry. aug: au: Shiel, Flinn Persson, Carl Simas, Vini Furness, James Climstein, Mike Pope, Rod Schram, Ben affil: Bond University sug: subj: Body Composition Evaluation Absorptiometry, Photon Methods Protocols Evaluation Patient Positioning Methods Clinical Assessment Tools Instrument Validation Human Validation Studies Test-Retest Reliability Male Female Intraclass Correlation Coefficient Reproducibility of Results Adipose Tissue Reliability and Validity Descriptive Statistics Male Female ab: The Nana positioning protocol is widely used to position participants to minimize technical error when undertaking body composition scanning and analysis with a Dual energy X-Ray absorptiometry (DXA) machine. Once biological and technical errors are accounted for, the only variation in test-retest results is from statistical fluctuation or machine error. Therefore, the aim of this study is to assess the test-retest reliability of the Nana positioning protocol and establish the smallest real difference percentage (SRD%). A gender-balanced group of 30 participants (15 males, 15 females) underwent two scans in succession using the Nana positioning protocol, with repositioning between scans. Percentage change in mean with typical error, Intraclass Correlation Coefficients (ICC), and standard error measurement percentage (SEM%) were used to identify the test-retest reliability and error rate of these protocols. Additionally, SRD% was calculated to assess the point at which clinically important changes occurred in a participant. The reliabilities of the whole body and regional scans were excellent. Percentage change in mean ranged between 0.00% and 0.23%. High reproducibility of the Nana positioning protocol was evident through an ICC ranging between 0.966-1.000. Additionally, typical error, SEM%, and SRD% were all low. Interestingly, fat mass was associated with the largest fluctuations observed to be associated with any of the parameters assessed. When all sources of biological and technical errors have been accounted for, the Nana positioning protocol has excellent test-retest reliability and produces low SEM% and SRD%. pubtype: Academic Journal doctype: diagnostic images pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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