活動区域別歩行率からみた日常身体活動量評価の試み

概要

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The walking frequency in daily life was evaluated as an index of the level of daily physical activity in three living areas: outdoor, indoor with shoes, and indoor without shoes. Actocoda YH-I was used for pedometric measurements and was fitted during a time-based study on eighteen subjects comprising three male students, three male indoor workers, five female students, and seven female indoor workers. The step ratio for each areas (%) and the walking frequency (steps/min) were calculated. The correlation between the walking frequency and the heart rate during daily activity was then analyzed for another five female subjects, Vantage XLnew equipment being used to monitor the heart rate. The walking frequency in each of the three living areas indoor without shoes, indoor with shoes, and outdoor was about 14.8, 33.9, and 69.7 steps/min, respectively, the frequency ratio among the three living areas was 2:5:10. The walking frequency and the heart rate standardized by the mean value during sleeping showed good correlation. It is suggested that the walking frequency in these three living areas will be useful as an index to represent daily physical activity.
1999-08-15