Physical activity and common tasks of California farm workers: California Heat Illness Prevention Study (CHIPS)
Physical activity and common tasks of California farm workers: California Heat Illness Prevention Study (CHIPS)
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DOI：
10.1080/15459624.2018.1519319
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发表时间：
2018-12-02
影响因子：
2
通讯作者：
Schenker, Marc B.
中科院分区：
文献类型：
--
作者：
Mitchell, Diane C.;Castro, Javier;Schenker, Marc B.
农场工人有热相关疾病（HRI）的风险，但他们的工作率，有助于HRI还没有得到客观的评估。CHIPS研究收集了加速计数据，并描述了主要农场任务的体力活动。人口统计信息，工作特点，和加速计数据收集了575农场工人在加州。每个参与的工人在一个工作班次上提供测量结果。将Actical加速计牢固地连接到佩戴在臀部的腰带上。在整个工作班次中，每隔一分钟收集一次数据。共确定了13个主要工作任务类别。描述了每项任务的平均每分钟体力活动计数（cpm）和在中等和/或剧烈活动水平下的轮班百分比。多元线性回归模型构建，以确定工人和环境特征的体力活动水平。体力活动的平均水平从700 cpm（搬运农产品的工人）到150 cpm的低水平“地面修剪工”，他们倾向于低水平的植物，总体平均值为345 cpm或“轻度”活动（2到
Farm workers are at risk of heat related illness (HRI), but their work rates that contribute to HRI have not been objectively assessed. The CHIPS study collected accelerometer data and characterized the physical activity of major farm tasks. Demographic information, work characteristics, and accelerometer data were collected from 575 farm workers in California. Each participating worker contributed measurements over one work shift. An Actical accelerometer was attached securely to a belt worn at the hip. Data were collected at one-minute intervals throughout the work shift. A total of 13 major work-task categories were defined. The mean physical activity counts per minute (cpm) and percentage of the shift spent at moderate and/or vigorous levels of activity were described for each task. Multiple linear regression models were constructed to determine the worker and environmental characteristics contributing to the physical activity level. Mean levels of physical activity ranged from 700 cpm (workers who carry produce) to a low of 150 cpm "ground pruners" who tend low-level plants, with an overall mean of 345 cpm or "light" activity (2 to