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971.
Accelerometers record total physical activity and time spent at different intensities. Pedometers indicate total activity only. The aim of this study was to assess the relationship between pedometer counts and attainment of > or = 60 min of moderate activity. Thirty-four children, ages 8-10 years, wore a Tritrac accelerometer and Yamax pedometer. Published recommendations of steps per day were compared to attainment of > or = 60 min moderate activity. Boys who accumulated 13,000 steps.d(-1) and girls who accumulated 12,000 steps.d(-1) engaged in > or = 60 min moderate activity. However, 23% of boys and 15% of girls did not reach the pedometer thresholds but did engage in > or = 60 min moderate activity. In conclusion, these pedometer thresholds provide a reasonable estimation when assessment of physical activity intensity is not possible. 相似文献
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Travel Cost Analysis of a Cultural Heritage Site: The Case of Historic St. Mary's City of Maryland 总被引:4,自引:1,他引:3
Historic St. Mary's City located in rural southern Maryland, marks the 17th century British Colonial capital of the State of Maryland. As with most cultural heritage sites, Historic St. Mary's City can be classified as possessing public goods-type characteristics, and as such, welfare benefit estimates must utilize non-market valuation techniques. To date, the primary valuation methodology used for cultural heritage sites research involves stated preference methods. This study is one of the first to employ a revealed preference methodology, the zonal travel cost model, to estimate the consumer surplus welfare measures of a cultural heritage site. We analyze three years of visitor sample data to compare three functional forms of visitor demand. The average of the annual individual consumer surplus measures ranged from approximately $8.00 to $19.26, depending on the functional forms used. When aggregated to the total number of individual paid visitors, the average annual benefit estimates range from approximately $75,492 to $176,550. 相似文献
979.
Reflections on the cultivation of taste 总被引:3,自引:3,他引:0
Roger A. McCain 《Journal of Cultural Economics》1979,3(1):30-52
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