OBJECTIVE: Low and high body mass index (BMI) values have been shown to increase health risks and mortality and result in variations in @entity1386 ( @entity1386 ) and body fat mass (BF). Currently, there are no published ranges for a @entity1386 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 @entity28 BMI. METHODS: @entity1386 and BF were determined in 2986 healthy white @entity1 and 2649 white @entity1 , 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 @entity1 and 14.6 to 16.8 kg/m(2) for @entity1 within the normal BMI ranges. BFMI values were 1.8 to 5.2 kg/m(2) for @entity1 and 3.9 to 8.2 kg/m(2) for @entity1 within the normal BMI ranges. BFMI values were 8.3 and 11.8 kg/m(2) in @entity1 and @entity1 , respectively, for @entity28 BMI (>30 kg/m(2)). Normal ranges for %BF were 13.4 to 21.7 and 24.6 to 33.2 for @entity1 and @entity1 , respectively. CONCLUSION: BMI alone cannot provide information about the respective contribution of @entity1386 or fat mass to body weight. This study presents FFMI and BFMI values that correspond to low, normal, overweight, and @entity28 BMIs. FFMI and BFMI provide information about body compartments, regardless of height.

Body composition interpretation. Contributions of the XXXX index and the body fat mass index.

@entity1 :: ('9606', 'Species') :: ['women', 'men'] @entity1386 :: ('MESH:D018205', 'Disease') :: ['FFM', 'fat-free mass'] @entity28 :: ('MESH:D009765', 'Disease') :: ['obese']
@entity1386 :: (MESH:D018205,Disease) :: ['fat-free mass']
