Age and Ageing, Vol 29, 433-439, Copyright © 2000 by British Geriatrics Society
L Pescatello, D Murphy and D Costanzo
Objective. To examine the influence of low-intensity,
habitual physical activity on blood lipids and lipoproteins and other
cardiovascular risk factors in older adults living at
home.Design. Cross-sectional observational
study.Participants. A convenience sample of healthy,
older adults (n155) who were mainly non-Hispanic,
white (96.8%), female (65.2%) and on medications for
cardiometabolic-related disorders (60.6%) and had an average age of
74.2
ARTICLES
Low-intensity physical activity benefits blood lipids and lipoproteins in older adults living at home
School of Allied Health, University of Connecticut, 358 Mansfield Road, Storrs, CT 06269-2101, USA; Department of Health Promotion, New Britain General Hospital, New Britain, CT, USA; Corresponding author; Fax: +1 860 4861588; E-mail: Pescatell@Uconnvm.uconn.edu
0.5 years.Method.
We used a question from the Yale Physical Activity Survey to
assess the typical number of hours per day spent in motion during the past
month, collapsing responses into <5 and 
5h/day. We
determined blood lipids, lipoproteins and glucose with Kodak Ektachem serum
oxidase assays or finger stick using the Cholestech LDX system enzymatic
technique, and measured blood pressure by auscultation. Waist circumference
was the indicator of abdominal fat distribution and body mass index the
measure of overall adiposity.Results. After adjusting
for age, sex, adiposity, postprandial state, medication use and method of
blood sampling, greater amounts of daily accumulated movement were
associated with more favourable blood-lipid-lipoprotein profiles. Subjects
reporting 5 h of daily movement had higher levels of high-density
lipoprotein cholesterol [mean differences (95% confidence interval): 0.23
mmol/l (0.07, 0.39); P0.002] and a lower ratio of
total to high-density lipoprotein cholesterol [average difference: -0.92
(-1.36, -0.48); P0.003]. They had lower levels of
low-density lipoprotein cholesterol [mean difference: -0.39 mmol/l (-0.80,
0.03); P0.074)] and a lower ratio of cholesterol was
similar in the two groups (P<0.02), independent
of age, sex, adiposity, medication use and postprandial
state.Conclusion. Low-intensity, habitual physical
activity is a sufficient stimulus to enhance blood lipids/lipoproteins and
glucose in older adults, independent of abdominal and overall
adiposity.Keywords: ageing, blood glucose, exercise,
high-density lipoprotein
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