Ultrasound techniques applied to body fat measurement in male and female athletes

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Bibliographic Details
Title translated into German:Ultraschalltechniken, die zur Körperfettmessung bei männlichen und weiblichen Sportlern angewendet werden
Author:Pineau, Jean-Claude; Filliard, Jean-Robert; Bocquet, Michel
Published in:Journal of athletic training
Published:44 (2009), 2, S. 142-147, Lit.
Format: Publications (Database SPOLIT)
Publication Type: Journal article
Media type: Electronic resource (online) Print resource
Language:English
ISSN:1062-6050, 0160-8320, 1938-162X
Keywords:
Online Access:
Identification number:PU201010007478
Source:BISp

Abstract

Context: For athletes in disciplines with weight categories, it is important to assess body composition and weight fluctuations.Objective: To evaluate the accuracy of measuring body fat percentage with a portable ultrasound device possessing high accuracy and reliability versus fan-beam, dual-energy X-ray absorptiometry (DEXA).
Design: Cross-validation study. Setting: Research laboratory. Patients or Other Participants: A total of 93 athletes (24 women, 69 men), aged 23.5 ± 3.7 years, with body mass index = 24.0 ± 4.2 and body fat percentage via DEXA = 9.41 ± 8.1 participated. All participants were elite athletes selected from the Institut National des Sports et de l'Education Physique. These participants practiced a variety of weight-category sports. Main Outcome Measure(s): We measured body fat and body fat percentage using an ultrasound technique associated with anthropometric values and the DEXA reference technique. Cross-validation between the ultrasound technique and DEXA was then performed. Results: Ultrasound estimates of body fat percentage were correlated closely with those of DEXA in both females (r = 0.97, standard error of the estimate = 1.79) and males (r = 0.98, standard error of the estimate = 0.96). The ultrasound technique in both sexes had a low total error (0.93). The 95% limit of agreement was −0.06 ± 1.2 for all athletes and did not show an overprediction or underprediction bias. We developed a new model to produce body fat estimates with ultrasound and anthropometric dimensions. Conclusions: The limits of agreement with the ultrasound technique compared with DEXA measurements were very good. Consequently, the use of a portable ultrasound device produced accurate body fat and body fat percentage estimates in relation to the fan-beam DEXA technique. Verf.-Referat