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Body composition interpretation. Contributions of the fat-free mass index and the body fat mass index.
Nutrition 2003 Jul-Aug; 19(7-8):597-604N

Abstract

OBJECTIVE

Low and high body mass index (BMI) values have been shown to increase health risks and mortality and result in variations in fat-free mass (FFM) and body fat mass (BF). Currently, there are no published ranges for a fat-free mass index (FFMI; kg/m(2)), a body fat mass index (BFMI; kg/m(2)), and percentage of body fat (%BF). The purpose of this population study was to determine predicted FFMI and BFMI values in subjects with low, normal, overweight, and obese BMI.

METHODS

FFM and BF were determined in 2986 healthy white men and 2649 white women, age 15 to 98 y, by a previously validated 50-kHz bioelectrical impedance analysis equation. FFMI, BFMI, and %BF were calculated.

RESULTS

FFMI values were 16.7 to 19.8 kg/m(2) for men and 14.6 to 16.8 kg/m(2) for women within the normal BMI ranges. BFMI values were 1.8 to 5.2 kg/m(2) for men and 3.9 to 8.2 kg/m(2) for women within the normal BMI ranges. BFMI values were 8.3 and 11.8 kg/m(2) in men and women, respectively, for obese BMI (>30 kg/m(2)). Normal ranges for %BF were 13.4 to 21.7 and 24.6 to 33.2 for men and women, respectively.

CONCLUSION

BMI alone cannot provide information about the respective contribution of FFM or fat mass to body weight. This study presents FFMI and BFMI values that correspond to low, normal, overweight, and obese BMIs. FFMI and BFMI provide information about body compartments, regardless of height.

Authors+Show Affiliations

Department of Clinical Nutrition, Geneva University Hospital, Geneva, Switzerland.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12831945

Citation

Kyle, Ursula G., et al. "Body Composition Interpretation. Contributions of the Fat-free Mass Index and the Body Fat Mass Index." Nutrition (Burbank, Los Angeles County, Calif.), vol. 19, no. 7-8, 2003, pp. 597-604.
Kyle UG, Schutz Y, Dupertuis YM, et al. Body composition interpretation. Contributions of the fat-free mass index and the body fat mass index. Nutrition. 2003;19(7-8):597-604.
Kyle, U. G., Schutz, Y., Dupertuis, Y. M., & Pichard, C. (2003). Body composition interpretation. Contributions of the fat-free mass index and the body fat mass index. Nutrition (Burbank, Los Angeles County, Calif.), 19(7-8), pp. 597-604.
Kyle UG, et al. Body Composition Interpretation. Contributions of the Fat-free Mass Index and the Body Fat Mass Index. Nutrition. 2003;19(7-8):597-604. PubMed PMID: 12831945.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Body composition interpretation. Contributions of the fat-free mass index and the body fat mass index. AU - Kyle,Ursula G, AU - Schutz,Yves, AU - Dupertuis,Yves M, AU - Pichard,Claude, PY - 2003/7/2/pubmed PY - 2004/1/6/medline PY - 2003/7/2/entrez SP - 597 EP - 604 JF - Nutrition (Burbank, Los Angeles County, Calif.) JO - Nutrition VL - 19 IS - 7-8 N2 - OBJECTIVE: Low and high body mass index (BMI) values have been shown to increase health risks and mortality and result in variations in fat-free mass (FFM) and body fat mass (BF). Currently, there are no published ranges for a fat-free mass index (FFMI; kg/m(2)), a body fat mass index (BFMI; kg/m(2)), and percentage of body fat (%BF). The purpose of this population study was to determine predicted FFMI and BFMI values in subjects with low, normal, overweight, and obese BMI. METHODS: FFM and BF were determined in 2986 healthy white men and 2649 white women, age 15 to 98 y, by a previously validated 50-kHz bioelectrical impedance analysis equation. FFMI, BFMI, and %BF were calculated. RESULTS: FFMI values were 16.7 to 19.8 kg/m(2) for men and 14.6 to 16.8 kg/m(2) for women within the normal BMI ranges. BFMI values were 1.8 to 5.2 kg/m(2) for men and 3.9 to 8.2 kg/m(2) for women within the normal BMI ranges. BFMI values were 8.3 and 11.8 kg/m(2) in men and women, respectively, for obese BMI (>30 kg/m(2)). Normal ranges for %BF were 13.4 to 21.7 and 24.6 to 33.2 for men and women, respectively. CONCLUSION: BMI alone cannot provide information about the respective contribution of FFM or fat mass to body weight. This study presents FFMI and BFMI values that correspond to low, normal, overweight, and obese BMIs. FFMI and BFMI provide information about body compartments, regardless of height. SN - 0899-9007 UR - https://www.unboundmedicine.com/medline/citation/12831945/Body_composition_interpretation__Contributions_of_the_fat_free_mass_index_and_the_body_fat_mass_index_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0899900703000613 DB - PRIME DP - Unbound Medicine ER -