THE RELATION OF HYDRATION STATUS TO DECLARATIVE MEMORY AND WORKING MEMORY IN OLDER ADULTS

Objectives:Prior studies have suggested a relationship between dehydration and poor cognitive performance. This study examines the relationships among hydration status, declarative memory and working memory skills, and blood pressure in a sample of older community dwelling females.

Results: Bioelectrical impedance total body water by weight was found to be related to working memory, r = .47, p = .04, and memory skills, r = .54, p = .01. Total body water by weight was also found to be related to diastolic blood pressure, r = -.56, p = .01, which in turn was related to working memory, r = -.67, p = .002, and declarative memory, r = -.57, p = .009, skills. When diastolic blood pressure was accounted for, the relationship between hydration status and cognitive skills was attenuated. A similar pattern of results was seen for systolic blood pressure, although findings did not reach statistical significance.

Conclusions:Results emphasize the importance of considering hydration status and blood pressure when interpreting cognitive performance in older adults.

TOPICS
The Elderly
YEAR
Not Available
AUTHORS
Suhr JA, Patterson SM, Austin ...
Suhr JA, Patterson SM, Austin AW, Heffner KL
REF
J Nutr Health Aging 14(10):840...
J Nutr Health Aging 14(10):840-3
http://www.ncbi.nlm.nih.gov/pubmed/21125202