Diastolic dysfunction, often seen with increasing age, is associated with reduced exercise capacity and increased mortality. Mortality rates in older individuals are linked to the development of disability, which may be preceded by functional limitations. The goal of this study was to identify which echocardiographic measures of diastolic function correlate with physical function in older subjects. A total of 36 men and women from the Louisiana Healthy Aging Study, age 62–101 yr, received a complete echocardiographic exam and performed the 10-item continuous-scale physical-functional performance test (CS-PFP-10). After adjustment for age and gender, left atrial volume index (ρ = –0.59; p = .0005) correlated with the total CS-PFP-10 score. Increased left atrial volume index may be a marker of impaired performance of activities of daily living in older individuals.
Left Atrial Enlargement and Reduced Physical Function During Aging
Andrew A. Pellett, Leann Myers, Michael Welsch, S. Michal Jazwinski, and David A. Welsh
Social Factors and Healthy Aging: Findings from the Louisiana Healthy Aging Study (LHAS)
Katie E. Cherry, Jennifer Silva Brown, Sangkyu Kim, and S. Michal Jazwinski
Social behaviors are associated with health outcomes in later life. The authors examined relationships among social and physical activities and health in a lifespan sample of adults (N = 771) drawn from the Louisiana Healthy Aging Study (LHAS). Four age groups were compared: younger (21–44 years), middle-aged (45–64 years), older (65–84 years), and oldest-old adults (85–101 years). Linear regression analyses indicated that physical activity, hours spent outside of the house, and social support were significantly associated with selfreported health, after controlling for sociodemographic factors. Number of clubs was significantly associated with objective health status, after controlling for sociodemographic factors. These data indicate that social and physical activities remain important determinants of self-perceived health into very late adulthood. Implications of these data for current views on successful aging are discussed.