Study of Factors Affecting the Step Count and Physical Activity Related Energy Expenditure of Healthy Elderly: Is It Possible to Assess Physical Activity by Only The Step Count?

[Purpose] To examine whether the physical activity of healthy elderly people can be evaluated using step counts. [Subjects and Methods] The subjects were 102 healthy elderly persons. Daily physical activity (step counts and physical activity-related energy expenditure “PAEE”) were assessed using a u...

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Published inRigakuryoho Kagaku Vol. 30; no. 4; pp. 513 - 518
Main Authors SUYAMA, Kazuaki, ASAI, Masaharu, TANAKA, Takako, TANAKA, Kenichirou, MIYAMOTO, Naomi, TABUSADANI, Mitsuru, SENJYU, Hideaki
Format Journal Article
LanguageJapanese
Published The Society of Physical Therapy Science 03.09.2015
Subjects
healthy elderly
physical activity
step counts
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Summary:[Purpose] To examine whether the physical activity of healthy elderly people can be evaluated using step counts. [Subjects and Methods] The subjects were 102 healthy elderly persons. Daily physical activity (step counts and physical activity-related energy expenditure “PAEE”) were assessed using a uniaxial accelerometer. We also evaluated factors associated with physical activity, such as body mass index, quadriceps force hand-grip force respiratory function, depressive symptoms, regional environment, and wearing rate. [Results] A high correlation was observed between the step count and PAEE. Furthermore, age, hand-grip force quadriceps force and wearing rate affected the number of steps and PAEE, according to multiple regression analysis. [Conclusion] Our results suggest that a step count is sufficient to evaluate the PAEE of healthy elderly people.
ISSN:1341-1667
2434-2807
DOI:10.1589/rika.30.513