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Yearlong physical activity and depressive symptoms in older Japanese adults: cross-sectional data from the Nakanojo
Kazuhiro Yoshiuchi1, Rika Nakahara, Hiroaki Kumano
1Department of Psychosomatic Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan.
Objective:
The objective of this study was to investigate associations between accelerometer measurements of physical activity and psychosocial variables in older people.
Methods:
Subjects were 184 Japanese aged 65-85 years. An accelerometer provided step count and physical activity intensity data throughout each 24-hour period for 1 year. At the end of the year, anxiety, depression, and cognitive function were assessed.
Results:
Controlling for age, the daily number of steps, and the daily duration of moderate-intensity physical activity showed significant negative correlations with depressive mood.
Conclusion:
A depressive mood is associated with the quantity and quality of habitual physical activity.
