Identifying characteristics of indicators of sedentary behavior using objective measurements
Identifying characteristics of indicators of sedentary behavior using objective measurements
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使用客观测量来识别久坐行为指标的特征
DOI：
10.1002/1348-9585.12089
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发表时间：
2020
影响因子：
3
通讯作者：
Ebara T
中科院分区：
文献类型：
--
作者：
Yamamoto K;Matsuda F;Matsukawa T;Yamamoto N;Ishii K;Kurihara T;Yamada S;Matsuki T;Kamijima M;Ebara T
最近的注意力集中在影响健康结果的久坐行为（SB），但反映SB的指标的特征仍有待确定。这项横断面研究的目的是确定SB的指标的特点，专注于检查的相关性，可靠性和有效性的久坐变量评估的智能手机app. MethodObjectiveMeasured数据SB的合格的46名日本工人从智能手机获得。我们评估了当前指标的特征，这些指标使用10分钟或30分钟阈值，以及总久坐时间、平均久坐发作持续时间和久坐发作总次数的传统指标。他们进行了评估，从三个角度：（a）之间的关联的指标，（B）的指标的可靠性，和（c）标准validity.ResultsTotal久坐不动的时间在10分钟（U10）和U30有负相关与总久坐不动的时间（r =-. 47和-. 21分别）。平均久坐回合持续时间与久坐回合总数之间的相关性为-0.84，而平均久坐回合持续时间10、30与久坐回合总数之间的相关性分别为-0.54和-0.21。各指标的组内相关系数均在0.80左右。平均久坐持续时间、平均久坐持续时间10、久坐总次数、久坐总时间30、U30和U10在3个BMI组间有显著性差异。而不是常规的SB总量。
ObjectiveRecent attention has been focused on sedentary behavior (SB) affecting health outcomes, but the characteristics of indicators reflecting SB remain to be identified. This cross-sectional study aims to identify the characteristics of indicators of SB, focusing on the examination of correlations, reliability, and validity of sedentary variables assessed by the smartphone app.MethodObjectively measured data of SB of eligible 46 Japanese workers obtained from smartphones were used. We assessed the characteristics of current indicators being used with a 10-minute or 30-minute thresholds, in addition to the conventional indicators of total sedentary time, mean sedentary bout duration, and total number of sedentary bouts. They were evaluated from three perspectives: (a) association among the indicators, (b) reliability of the indicators, and (c) criterion validity.ResultsTotal sedentary time under 10 minutes(U10) andU30had negative associations withTotal sedentary time(r = −.47 and −.21 respectively). The correlation betweenMean sedentary bout durationandTotal number of sedentary boutswas −.84, whereas betweenMean sedentary bout duration 10, 30andTotal number of sedentary boutswere −.54 and −.21, respectively. The intraclass correlation coefficients of almost all indicators were around .80.Mean sedentary bout duration, Mean sedentary bout duration 10, Total number of sedentary bouts, Total sedentary time 30, U30andU10have significant differences between three BMI groups.ConclusionThis study comprehensively revealed the rationale of advantage in the current indicator being used with a 10-minute or 30-minute threshold, rather than the conventional total amount of SB.