Steps per Day, Daily Peak Stepping Cadence, and Walking Performance in Older Adults

作者：Gonzales Joaquin U^*; Shephard Jordan; Dubey Neha

来源：Journal of Aging and Physical Activity, 2015, 23(3): 395-400.

DOI：10.1123/japa.2014-0049

• physical activity
• accelerometer
• gait speed
• sex differences
• ambulation
• walking

We tested the hypothesis that the intensity of daily ambulation would relate with functional walking capacity in older adults. Forty-three women (n = 25) and men (n = 18) between the ages of 60-78 years wore an accelerometer for measurement of average daily steps and 30-min peak stepping cadence. A 400-m walk test was used to measure walking speed. No sex difference was found for average daily steps (p =.76), average peak cadence (p =.96), or walking speed (p =.89). Daily steps (women: r =.68, p <.01; men: r =.04) and peak cadence (women: r =.81, p <.01; men: r = -.16) were positively correlated with walking speed in women but not in men. After controlling for daily steps, peak cadence remained significantly associated with walking speed in women (partial r =.61, p <.01). Walking intensity during daily ambulation is independently related to functional walking capacity in older adults, albeit this relation may be more significant for women than men.

• 出版日期2015-7