Thirteen retarded adult subjects were first exposed to a 12-week behavior therapy weight reduction program followed by a ten-month weekly weigh-in. Then the subjects were randomly assigned to an experimental maintenance booster session group (n=7) or a control post-treatment maintenance group (n=6) for 12 months. The results indicated that when weight control or maintenance procedures were in effect, the subjects lost weight. However, a 12-month follow-up check revealed that the long-term success of the treatment and maintenance procedures was not well maintaned.
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