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An investigation of satiety in ageing, dementia, and hyperphagia
Author(s) -
Keene Janet,
Hope Tony,
Rogers Peter J.,
Elliman Nicola A.
Publication year - 1998
Publication title -
international journal of eating disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.785
H-Index - 138
eISSN - 1098-108X
pISSN - 0276-3478
DOI - 10.1002/(sici)1098-108x(199805)23:4<409::aid-eat8>3.0.co;2-m
Subject(s) - dementia , preload , meal , ageing , psychology , elderly people , food intake , gerontology , medicine , audiology , developmental psychology , hemodynamics , disease
Objective To investigate satiety in young, middle‐aged, and elderly healthy adults, and in nonhyperphagic and hyperphagic elderly people with dementia. Previous work suggested hyperphagia in dementia was due to increased hunger and absence of satiation. Methods: The primary measure of satiety was the amount of food eaten in an ad libitum meal, given 1 hr after a fixed preload. Three types of preload were used, high‐ and low‐energy milkshakes and water. The effect of age was investigated by comparing the three groups of healthy adults. The effect of dementia was investigated by comparing the two demented groups with healthy elderly. Results: Measurements suggested that accuracy of compensation for preload energy differences decreased with age and was absent in people with dementia. Discussion: Lack of compensatory response in the elderly, particularly those with dementia, indicates the need for monitoring food intake to prevent over‐ or undereating. © 1998 John Wiley & Sons, Inc. Int J Eat Disord 23:409–418, 1998.