Stride Rate and Walking Intensity in Healthy Older Adults

作者：Peacock Leslie^*; Hewitt Allan; Rowe David A; Sutherland Rona

来源：Journal of Aging and Physical Activity, 2014, 22(2): 276-283.

DOI：10.1123/JAPA.2012-0333

• cadence
• physical activity
• rhythmic auditory stimulation
• music

Purpose: The study investigated (a) walking intensity (stride rate and energy expenditure) under three speed instructions; (b) associations between stride rate, age, height, and walking intensity; and (c) synchronization between stride rate and music tempo during overground walking in a population of healthy older adults. Methods: Twenty-nine participants completed 3 treadmill-walking trials and 3 overground-walking trials at 3 self-selected speeds. Treadmill VO2 was measured using indirect calorimetry. Stride rate and music tempo were recorded during overground-walking trials. Results: Mean stride rate exceeded minimum thresholds for moderate to vigorous physical activity (MVPA) under slow (111.41 +/- 11.93), medium (118.17 +/- 11.43), and fast (123.79 +/- 11.61) instructions. A multilevel model showed that stride rate, age, and height have a significant effect (p %26lt; .01) on walking intensity. Conclusions: Healthy older adults achieve MVPA with stride rates that fall below published minima for MVPA. Stride rate, age, and height are significant predictors

• 出版日期2014-4