[Purpose] The purpose of this study was to examine the relationships between physical,
cognitive, and social frailty and locomotive and non-locomotive physical activity of
moderate to vigorous intensity in community-dwelling older adults and to explore effective
intervention methods for preventing frailty. [Participants and Methods] Participants were
82 community-dwelling Japanese older males and females. Measurement items included basic
information (age, gender, height, weight, body mass index, and the number of underlying
diseases), physical activity, and assessment of physical, cognitive, and social frailty.
Associations of physical, cognitive, and social frailty with physical activity were
analyzed by group comparisons and multivariate analyses. [Results] The comparisons of
physical activity indices for each frailty type revealed that physical frailty was
associated with the number of steps and locomotive physical activity of moderate to
vigorous intensity, whereas cognitive frailty and social frailty were not. Two overlapping
types of frailty were associated with locomotive physical activity. When adjusted for age
and gender, step counts and locomotive physical activity were each associated with
physical frailty. [Conclusion] Future interventions to increase step counts and locomotive
physical activity of moderate to vigorous intensity may be effective for preventing
physical frailty; however, interventions other than simple physical activity need to be
considered for the prevention of cognitive and social frailty.