Daily walking in older adults: day-to-day variability and criterion-referenced validity of total daily step counts.
Daily walking in older adults: day-to-day variability and criterion-referenced validity of total daily step counts.
复制标题
老年人的每日步行：每日总步数的每日变异性和标准参考有效性。
DOI：
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发表时间：
2007
影响因子：
3.1
通讯作者：
M. Mahar
中科院分区：
文献类型：
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作者：
D. Rowe;C. D. Kemble;T. Robinson;M. Mahar
目的
确定老年人体力活动的日常变化，并评估10，000步目标的准确性，以分类老年人是否获得30分钟的MVPA。
方法
91名60岁以上的成年人佩戴Yamax计步器和Actigraph加速计7天。日间可靠性通过双向ANOVA ICC进行评估，分类准确性通过敏感性，特异性和ROC曲线分析进行评估。
结果
日间可靠性高; 5项结局指标中有4项的可靠性>或= 0.80，数据仅为2天。10，000步临界点对于识别MVPA小于30分钟的天数具有较高的准确性，但对于识别MVPA大于30分钟的天数的准确性较差。
结论
老年人身体活动的日常变化性低于其他年龄组。10，000步的目标不足以确定该人群的日常体力活动是否包括30分钟的MVPA。
OBJECTIVE
To determine the day-to-day variability of older adults' physical activity, and to evaluate the accuracy of the 10,000-step goal for classifying whether older adults obtain 30 minutes of MVPA.
METHODS
Ninety-one adults of age over 60 years of age wore a Yamax pedometer and Actigraph accelerometer for 7 days. Interday reliability was estimated via two-way ANOVA ICCs, and classification accuracy was evaluated via sensitivity, specificity, and ROC curve analysis.
RESULTS
Interday reliability was high; 4 of 5 outcome measures had a reliability of > or = .80 with only 2 days of data. The 10,000-step cut point had high accuracy for identifying days with less than 30 minutes of MVPA, but poor accuracy for identifying days with more than 30 minutes of MVPA.
CONCLUSIONS
Day-to-day variability in physical activity is lower in older adults than other age groups. The 10,000-step goal is inadequate for determining whether daily physical activity includes 30 minutes of MVPA in this population.