[Utility of the number of steps walked daily as a health promotion parameter in community-dwelling elderly persons].

Aim: To clarify the usefulness of the number of steps walked daily as a health promotion parameter in the elderly.

Methods: The study was performed at five welfare centers for the elderly in the suburban area of Takatsuki-city, Japan. Subjects comprised 339 community-dwelling persons (96 men and 243 women) aged 60-89 years. The number of steps walked daily, usual walking speed, "timed up and go" (TUG) time, handgrip strength, body muscle mass and bone density were measured. Psychological and physical status and lifestyle factors were determined vie questionnaire. Subjects were classified into one of two groups, a low- or high-level walking group, according to the Healthy Japan 21 criteria. Differences between the two groups were analyzed.

Results: Men walked 8,075 steps (mean number) daily, and women walked 7,902 steps daily. The number decreased with age in both men and women and correlated with usual walking speed and TUG time. Low-level walking was found in 41.7% of men and 28.8% of women. Intermittent claudication and fear of falling were the main contributors to low-level walking, whereas walking almost daily and engaging in physical activity with a view toward health promotion were the main contributors to high-level walking.

Conclusion: For the elderly population, the number of steps walked daily was related to their walking ability, such as walking speed and walking balance, and could be considered as a useful health promotion parameter. Taking a walk daily could be the main approach to increase the number of steps walked daily in the elderly.