Comparison of the Posture Times and Sedentary Times of Young-old and Old-old Community-dwelling Elderly Using a Triaxial Accelerometer

Abstract

[Purpose] This study aimed to clarify the characteristics of each posture time and the sedentary behavior (SB) time of young-old and old-old community-dwelling elderly. [Participants and Methods] The participants were 137 persons attending a general care prevention classroom (22 males, 108 females, age 74.0 ± 4.7 years). Their basic information was recorded, and a questionnaire survey, and physical function evaluation were performed. Triaxial accelerometers were used to measure daily posture time (standing position, sitting position, lying position) and SB time. [Result] The standing time of the old-old group was significantly shorter and their sitting and SB times were significantly longer than those of the young-old group. There was a significant positive correlation between age and sitting and SB times. [Conclusion] To prevent physical deterioration, it is necessary to educate young-old persons on the benefits of shortening SB time and extending standing behaviors.