Self-perceptions of aging, physical activity, and depressive symptoms in older community residents with varied neighborhood walkability in Taiwan

• Published in: BMC geriatrics Vol. 24; no. 1; pp. 596 - 11
• Main Authors: Liao, Jung-Yu, Lien, Yin-Yi, Liao, Yung, Lien, Yin-Ju
• Format: Journal Article
• Language: English
• Published: England BioMed Central Ltd 11.07.2024; BioMed Central; BMC
• Subjects: Aged; Aged, 80 and over; Aging; Aging - physiology; Aging - psychology; Analysis; Care and treatment; Coronaviruses; COVID-19; Data collection; Depression - epidemiology; Depression - psychology; Depression in old age; Diagnosis; Environment; Exercise; Exercise - physiology; Exercise - psychology; Female; Health aspects; Humans; Independent Living - psychology; Interviews; Male; Mental depression; Mental disorders; Mental health; Neighborhoods; Older people; Physical activity; Polls & surveys; Quality of life; Questionnaires; Residence Characteristics; Self Concept; Self-perception; Self-perceptions of aging; Statistical analysis; Taiwan - epidemiology; Walking - physiology; Walking - psychology; Taiwan; Japan; Environment; Self-perceptions of aging; Physical activity; Mental health
• ISSN: 1471-2318; 1471-2318
• DOI: 10.1186/s12877-024-05123-w

Prior research has identified the mediating effect of physical activity in the relationship between self-perceptions of aging and physical health. However, this impact on mental health is unknown, and the influence of environmental contexts proposed by ecological models in this regard remains largely unexplored. Therefore, this study aimed to investigate the role of physical activity in the relationship between self-perceptions of aging and depressive symptoms in older adults, and compare the impact across four levels of neighborhood walkability. A sample of 1,055 community-dwelling older adults aged 65 or above was obtained through random-digit-dialing computer-assisted telephone interviewing. The individual's neighborhood walkability was calculated using Walk Score®, and categorized into four levels: car-dependent, somewhat walkable, very walkable, and walker's paradise. Partial least squares structural equation modelling was employed. We found that more positive self-perceptions of aging were associated with fewer depressive symptoms and a mediation effect of physical activity in this relationship. Among the four levels of neighborhood walkability, the mediation effect of physical activity was only statistically significant in the lowest level (car-dependent). The findings supported our hypotheses regarding the mediating effect of self-perceptions of aging on depressive symptoms via physical activity. Neighborhood walkability might potentially influence the mediating role of physical activity. This study emphasizes key areas on intervention programs and policy formulation to promote mental health in older adults.