title: Correlation between daytime activities and night sleep of aged individuals estimated by wrist activity and sleep log.
abstract: The daytime and night-time activities in 15 aged subjects was studied using a wrist-worn activity device. A significant negative correlation between the amount of daytime and night-time activities was found (gamma=0.26, P < 0.01). There was a significant gender difference relating to the amount of daytime activity; women had significantly greater amount of daytime activity than did the men (P < 0.001). These results suggest that aged people with higher daytime activity sleep better than those with lower daytime activity and that nocturnal sleep in women may be less disturbed.
authors.affiliation: Ashikaga Junior College, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Hashimoto
authors.forename: T
authors.initials: T
authors.lastname: Kobayashi
mesh_terms: D000204:Activity Cycles; D000368:Aged; D000375:Aging / Q000523:psychology*; D002940:Circadian Rhythm; D004282:Documentation; D005260:Female; D015577:Geriatric Assessment; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D017286:Polysomnography / Q000295:instrumentation; D012680:Sensitivity and Specificity; D012894:Sleep Stages