NOTE: With the exception of resting metabolic rate, the absence of metabolic and physiological factors as predictors of weight loss is not an oversight. The measurement of metabolic factors is beyond the practice of the vast majority of obesity-treatment programs, and it is not surprising that data are not available. It is likely that with additional research, some factors can be identified. For example, although adipose tissue lipoprotein lipase (LPL) activity is increased in obesity, there are no studies identifying LPL activity as a predictor of weight loss. Future studies are needed to identify metabolic and physiologic predictors of weight loss (see Chapter 10 ).
SOURCES: Brownell and Wadden, 1992; Foreyt and Goodrick, 1991, 1994; O'Neil and Jarrell, 1992; Perri et al., 1992; and Wadden and Letizia, 1992.