Relative Fat Mass (RFM) is a simple formula for the estimation of overweight or obesity in humans that requires only a calculation based on a ratio of height and waist measurements.[1]
High body fat is associated with increased risks of poor health and early mortality.[2] RFM is a simple anthropometric procedure that is claimed to be more convenient than body fat percentage and more accurate than the traditional body mass index (BMI).
The ratio of the patient's height and waist measurement, both in meters, is multiplied by 20 before being subtracted from a number (shown in bold below) that adjusts for differences in gender and height:
- RFM for adult males: 64 – 20 × (height / waist circumference)
- RFM for adult females: 76 – 20 × (height / waist circumference)
Although generally validated on a database of some 12,000 adults, RFM has not yet been evaluated in longitudinal studies of large populations to identify normal or abnormal RFM in relation to obesity-related health problems.
See also
edit- Body mass index (BMI)
- Body fat percentage (BFP)
- Body roundness index (BRI)
- Body water (TBW)
- Corpulence index (CI)
References
edit- ^ Woolcott, Orison O.; Bergman, Richard N. (2018). "Relative fat mass (RFM) as a new estimator of whole-body fat percentage ─ A cross-sectional study in American adult individuals". Scientific Reports. 8 (1): 10980. Bibcode:2018NatSR...810980W. doi:10.1038/s41598-018-29362-1. PMC 6054651. PMID 30030479.
- ^ Ghulam, Anwal; Gianfagna, Francesco; Bonaccio, Marialaura; Costanzo, Simona; Di Castelnuovo, Augusto; De Curtis, Amalia; Gialluisi, Alessandro; Cerletti, Chiara; Donati, Maria Benedetta; de Gaetano, Giovanni; Iacoviello, Licia; Moli-sani Investigators (August 2023). "Association between BMI, RFM and mortality and potential mediators: Prospective findings from the Moli-sani study". International Journal of Obesity. 47 (8): 697–708. doi:10.1038/s41366-023-01313-5. ISSN 1476-5497. PMID 37208513. S2CID 258807875.
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