Assessment of research-based body composition techniques in healthy elderly men and women using the 4-compartment model as a criterion method

Goran, MI; Toth, MJ; Poehlman, E. T.

doi:10.1038/sj.ijo.0800555

Cited by 52 publications

(48 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…18 Considered by many to be the 'gold standard' for estimating body fatness, DXA measurements have been limited to the research setting because of their complexity and cost. [19][20][21][22][23] Previous studies have reported significant associations between BMI and DXA 9,24,25 and a recent report in Pima Indian children showed significant relations for both BMI and DXA with blood pressure, lipids and fasting insulin.…”

Section: Introductionmentioning

confidence: 93%

Comparison of body fatness measurements by BMI and skinfolds vs dual energy X-ray absorptiometry and their relation to cardiovascular risk factors in adolescents

et al. 2005

View full text Add to dashboard Cite

OBJECTIVE:To compare estimates of adiposity by dual emission X-ray absorptiometry (DXA), skinfolds and body mass index (BMI); and to evaluate the relation of these measures to cardiovascular risk in adolescents. DESIGN: In a cohort of adolescents participating in a longitudinal study of insulin resistance, Slaughter formulas were used to estimate adiposity from skinfolds and DXA was used to estimate adiposity as % body fat (%BF) and fat mass (FBM). BMI, blood pressure, lipids and insulin resistance were measured. SUBJECTS: Male and female, 11-17 y old (n ¼ 130). MEASUREMENTS: To compare DXA with two office-based methods of assessing fatness and cardiovascular risk. RESULTS: Slaughter estimates were highly correlated with DXA (%BF r ¼ 0.92, P ¼ 0.0001; FBM r ¼ 0.96, P ¼ 0.0001). Correlations were similar in heavy and thin children. BMI was also highly correlated with DXA (%BF r ¼ 0.85, P ¼ 0.0001; FBM r ¼ 0.95, P ¼ 0.0001), and these relations were stronger in heavy than thin children. BMI and the Slaughter formulas were similar to DXA in their relations to cardiovascular risk factors. CONCLUSIONS: Adiposity by BMI and Slaughter formulas are highly correlated with DXA and similarly related to cardiovascular risk factors. BMI is easy to obtain and is an acceptable method for initial office estimation of body fatness. BMI and skinfolds compare well with DXA in predicting adverse cardiovascular risk profile.

show abstract

Section: Introductionmentioning

confidence: 93%

Comparison of body fatness measurements by BMI and skinfolds vs dual energy X-ray absorptiometry and their relation to cardiovascular risk factors in adolescents

et al. 2005

View full text Add to dashboard Cite

show abstract

“…These considerations have been reported as the main limitations of 2C model to assess body fat in elderly subjects (Baumgartner et al, 1991;Goran et al, 1998;Withers et al, 1999;Bosy-Westphal et al, 2003). Consequently, various investigators have recommended the use of multi-compartmental models to study body composition in elderly subjects (Heymsfield et al, 1989;Baumgartner et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

Body composition by the four-compartment model: validity of the BOD POD for assessing body fat in mexican elderly

et al. 2007

View full text Add to dashboard Cite

Objective: The aims of this study were to validate BOD POD in a wide sample of healthy and independent Mexican elderly men and women subjects using the 4 compartment (4C) model as the reference method, and to evaluate the assumptions of the densitometric two-compartment (2C) model. Design: Cross-sectional study designed to assess body composition and validation of a method based on 2C model (BOD POD). Setting: Urban and rural regions of Sonora, Mexico. Subjects: Two hundred and two free-living subjects X60 years old were completed in this study. Methods: Body density and body fat were measured by the BOD POD, total body water by deuterium dilution and total body bone ash by dual energy X-ray absorptiometry. Body composition was determined using Baumgartner's equation. Results: Percent body fat by the 4C model was 31.2 and 42.5% in men and women, respectively (Po0.001). Group mean accuracy of body fat by BOD POD against that of the 4C model showed an effect of sex (Po0.001), but not the method (P ¼ 0.27). Results of individual accuracy showed no significant difference with the identity line and the slope was significantly different from zero or a slope similar to one. Precision assessed by model R 2 was high for all subjects and for men and women by separate. The standard error of the estimate was low for all and for men and women by separate. Bland and Altman analysis showed no significant bias. Conclusion: The BOD POD technique is a valid and reliable method compared to the 4C model and it could be applied in subjects with similar physical and anthropometric characteristics to subjects of this study.

show abstract

“…It is also known that the selection of the most appropriate equation should consider its validity within the population under study (15). The adequacy of Siri two compartment model for converting BD to %BF in older people has already been discussed (16,17). Previous studies have suggested that statements of Siri were appropriate for healthy old men but not for older women (16) and that Siri equation, depending on age, overestimates %BF by 2-3% in older individuals (17).…”

mentioning

confidence: 99%

Accuracy of Siri and Brozek equations in the percent body fat estimation in older adults

Guerra

Amaral

Marques

et al. 2010

The Journal of nutrition, health and aging

View full text Add to dashboard Cite

IntroductionAccurate body fat (BF) evaluation is an important objective of nutritional assessment of older people (1). However, commonly used methods for assessing body composition such as underwater weighing and air displacement are not suitable for daily practice and may be not appropriate for older people who are not able to cope with these procedures (1, 2).The skinfold thickness (ST) measurement in distinct and pre defined body locations allows direct measurement of the subcutaneous adipose tissue thickness (1). The ST provides a good approximation for total BF, allowing the prompt identification of abnormal situations and is useful to evaluate the dynamic changes of an individual's local or total fat (3). Compared to other procedures for estimating body composition, the ST measurement is a non invasive, very convenient, easy, inexpensive and a highly informative technique to be used in older people (4).Skinfold thickness measurement can be directly converted in percent BF (%BF) or may require body density (BD) calculation using regression equations and further conversion in %BF through distinct prediction formulas. Equations for directly converting skinfold measurement to %BF are only available for younger olders (60 years old) (5) or nonCaucasian olders (6, 7), as opposed to adults (8-11). Therefore, the %BF estimation based on ST measurement, as in other methods like underwater weighting, requires the BD calculation and then its conversion in %BF, through equations. It is also known that the selection of the most appropriate equation should consider its validity within the population under study (15). The adequacy of Siri two compartment model for converting BD to %BF in older people has already been discussed (16,17). Previous studies have suggested that statements of Siri were appropriate for healthy old men but not for older women (16) and that Siri equation, depending on age, overestimates %BF by 2-3% in older individuals (17). The Brozek equation, originally developed for non-athletic young adult males, has subsequently been applied to different populations, including older adults (3). Although the study of the accuracy of these two equations has already been done in adults (18,19), in older people it remains to be seen which equation provides a more accurate transformation of BD in %BF.Therefore, the purpose of the present study is to identify which equation, Siri or Brozek, provides a more valid transformation of BD in %BF within older people. As DualEnergy X-ray Absorptiometry (DXA) is a well established reference method for the assessment of older individuals body composition (20,22), it was chosen as a criterion method. Materials and Methods Subjects and designThis was a university-based, cross-sectional study carried out on a convenience sample of older individuals, living in Porto, Portugal. The sample included 35 women aged 60-92 years, and 25 men aged 61-82 years, engaged in an exercise program at the Physical Activity, Health and Leisure Research ACCURACY OF SIRI AND BROZEK EQUATIONS IN T...

show abstract

Assessment of research-based body composition techniques in healthy elderly men and women using the 4-compartment model as a criterion method

Cited by 52 publications

References 19 publications

Comparison of body fatness measurements by BMI and skinfolds vs dual energy X-ray absorptiometry and their relation to cardiovascular risk factors in adolescents

Comparison of body fatness measurements by BMI and skinfolds vs dual energy X-ray absorptiometry and their relation to cardiovascular risk factors in adolescents

Body composition by the four-compartment model: validity of the BOD POD for assessing body fat in mexican elderly

Accuracy of Siri and Brozek equations in the percent body fat estimation in older adults

Contact Info

Product

Resources

About