Yearlong physical activity and depressive symptoms in older Japanese adults: cross-sectional data from the Nakanojo study.
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.


CONCLUSIONS
A depressive mood is associated with the quantity and quality of habitual physical activity.
Yoshiuchi
Kazuhiro
K
Department of Psychosomatic Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan.
Nakahara
Rika
R
Kumano
Hiroaki
H
Kuboki
Tomifusa
T
Togo
Fumiharu
F
Watanabe
Eiji
E
Yasunaga
Akitomo
A
Park
Hyuntae
H
Shephard
Roy J
RJ
Aoyagi
Yukitoshi
Y
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology; D001007:Anxiety / Q000175:diagnosis / Q000453:epidemiology; D044466:Asian People; D002391:Catchment Area, Health; D003072:Cognition Disorders / Q000175:diagnosis / Q000453:epidemiology; D003430:Cross-Sectional Studies; D003863:Depression / Q000175:diagnosis* / Q000453:epidemiology* / Q000523:psychology; D015444:Exercise; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D009043:Motor Activity; D009483:Neuropsychological Tests; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D013997:Time Factors