What is already known about this subject
- • Excess fat mass (FM) is believed to be a primary cause of the health risks (e.g. cardiovascular, metabolic) associated with obesity
- • Dual X-ray absorptiometry and air-displacement plethysmography are frequently used in clinical research and practice to measure body composition changes.
- • There is no accepted single tool for measurement of obesity and change in FM that provides a sufficiently accurate and precise estimate.
What this study adds
- • The demonstrated accuracy of dual X-ray absorptiometry (DXA) supports its use as an indirect method for monitoring fat mass (FM) changes associated with clinical interventions for obesity.
- • DXA is significantly more accurate when compared to air-displacement plethysmography in recognizing small changes in FM.