J Phys Act Health. 2021 Jan 1;18(1):61-69. doi: 10.1123/jpah.2020-0135. Epub 2020 Dec 22.
Total sedentary time and prolonged sedentary patterns can negatively impact health. This study investigated rates of various sedentary pattern variables in Hispanic/Latino youth.
Participants were 956 youths (50.9% female) in the Hispanic Community Health Study/Study of Latinos Youth, a population-based cohort study of Hispanic/Latino 8- to 16-year-olds from 4 geographic regions in the United States (2012-2014). Total sedentary time and 10 sedentary pattern variables were measured through 1 week of accelerometer wear. Differences were examined by sociodemographic characteristics, geographic location, weekdays versus weekends, and season.
On average, youth were sedentary during 67.3% of their accelerometer wear time, spent 24.2% engaged in 10- to 29-minute sedentary bouts, and 7.2% in ≥60-minute bouts. 8- to 12-year-olds had more favorable sedentary patterns (less time in extended bouts and more breaks) than 13- to 16-year-olds across all sedentary variables. Sedentary patterns also differed by Hispanic/Latino background, with few differences across sex, household income, season, and place of birth, and none between weekdays versus weekends.
Variables representing prolonged sedentary time were high among Hispanic/Latino youth. Adolescents in this group appear to be at especially high risk for unhealthy sedentary patterns. Population-based efforts are needed to prevent youth from engaging in increasingly prolonged sedentary patterns.
总的久坐时间和长时间久坐的模式可能对健康产生负面影响。本研究调查了西班牙裔/拉丁裔青年中各种久坐模式变量的发生率。
参与者为来自美国 4 个地理区域的西班牙裔社区健康研究/拉丁裔青年研究中的 956 名青少年（50.9%为女性），这是一项基于人群的西班牙裔/拉丁裔 8 至 16 岁青少年队列研究。通过 1 周的加速度计佩戴来测量总久坐时间和 10 个久坐模式变量。通过社会人口统计学特征、地理位置、工作日与周末以及季节来检查差异。
平均而言，青少年在加速度计佩戴时间的 67.3%期间处于久坐状态，24.2%的时间处于 10-29 分钟的久坐小歇，7.2%的时间处于≥60 分钟的小歇。在所有久坐变量中，8 至 12 岁的青少年比 13 至 16 岁的青少年具有更有利的久坐模式（较长时间的小歇和更多的休息）。西班牙裔/拉丁裔背景也存在不同的久坐模式，在性别、家庭收入、季节和出生地方面差异不大，工作日与周末之间也没有差异。
代表长时间久坐的变量在西班牙裔/拉丁裔青少年中较高。该群体中的青少年似乎特别容易出现不健康的久坐模式。需要开展基于人群的努力，以防止青少年养成越来越长时间的久坐模式。
