Pedometer-measured physical activity and health behaviors in U.S. adults.
Pedometer-measured physical activity and health behaviors in U.S. adults.
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DOI：
10.1249/mss.0b013e3181dc2e54
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发表时间：
2010-10
影响因子：
4.1
通讯作者：
Hill JO
中科院分区：
文献类型：
--
作者：
Bassett DR Jr;Wyatt HR;Thompson H;Peters JC;Hill JO
与生活在其他国家的成年人相比，美国成年人的活动水平可能较低。提供美国成年人平均每天步行数的描述性流行病学数据，并根据人口统计特征和自我报告的行为特征确定计步器测量的体力活动的预测因素。《移动中的美国》研究是在2003年进行的。2522名13岁及以上的人同意填写调查问卷，其中包括1921名18岁及以上的成年人。使用Accuplit AE120计步器收集了1,136名成年人的有效计步器数据。根据几个变量(年龄、性别、种族/民族、教育程度、收入、体力活动水平和家庭中5-17岁儿童的数量)对数据进行加权，以反映美国总体人口。当只涉及两个亚组时，使用非配对t检验分析不同亚组之间的每日步数差异，如果涉及多个亚组，则采用单因素方差分析。据报道，成年人平均每天走5117步。男性、较年轻的年龄、较高的教育水平、单身婚姻状况和较低的身体质量指数(BMI)都与每天的步数呈正相关。每天的步数与其他自我报告的体力活动指标呈正相关，与自我报告的身体不活动指标呈负相关。生活环境(城市、郊区或农村)和饮食习惯与每天的步数无关。在目前的研究中，生活在美国的男性和女性每天走的步数比生活在瑞士、澳大利亚和日本的男性和女性少。我们的结论是，低水平的非卧床体力活动是导致美国成年人肥胖率高的原因之一。
U.S. adults may have lower levels of ambulatory physical activity, compared to adults living in other countries. To provide descriptive, epidemiological data on the average number of steps per day estimated to be taken by U.S. adults, and to identify predictors of pedometer-measured physical activity, based on demographic characteristics and self-reported behavioral characteristics. The America On the Move® study was conducted in 2003. 2,522 individuals ages 13 years and older consented to fill out a survey, including 1,921 adults ages 18 years and older. Valid pedometer data were collected on 1,136 adults with Accusplit AE120 pedometers. Data were weighted to reflect the general U.S. population according to several variables (age, gender, race/ethnicity, education, income, level of physical activity, and number of 5–17 year old children in the household). Differences in steps per day between sub-groups were analyzed using unpaired t-tests when only two subgroups were involved, or one-way ANOVAs if multiple sub-groups were involved. Adults reported taking an average of 5,117 steps per day. Male gender, younger age, higher education level, single marital status, and lower body mass index (BMI) were all positively associated with steps per day. Steps per day were positively related to other self-reported measures of physical activity and negatively related to self-reported measures on physical inactivity. Living environment (urban, suburban, or rural) and eating habits were not associated with steps per day. In the current study, men and women living in the U.S. took fewer steps per day than those living in Switzerland, Australia, and Japan. We conclude that low levels of ambulatory physical activity are contributing to the high prevalence of adult obesity in the U.S.