The accuracy of weight loss in estimating successful changes in body composition (BC), namely fat mass (FM) loss, is not known and was addressed in our study. To assess the correlation between change in body weight and change in FM, fat% and fat-free mass (FFM), 465 participants (41% male; 41 ± 13 years), who met the criteria for weight change assessment at a wellness center, underwent air-displacement plethysmography (ADP). Body weight and BC were measured at the same time.
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