Mississippi State University, United States.
University of Alabama at Birmingham, United States.
Disabil Health J. 2021 Jul;14(3):101059. doi: 10.1016/j.dhjo.2020.101059. Epub 2020 Dec 29.
There are limited data on the levels and patterns of sedentary behavior (SB) among U.S. adults with ID.
To examine SB levels and patterns in U.S. adults with ID and how these differ between sexes, age-groups, and week vs. weekend days.
Fifty-two adults with ID (25 men; age 45 ± 14 years) wore a hip accelerometer (wGT3X-BT; Actigraph) during the waking hours for 7 days. We determined total sedentary time, percent of wear time spent sedentary bouts ≥1, ≥10, ≥30, and ≥60 min, and breaks in sedentary time for bouts ≥10 min. We examined differences in SB variables as a function of sex, age-group by median split (≤48 vs. >48 years), and day of the week.
Total sedentary time was 514 ± 139 min · day accumulated in bouts 1-30 min and did not differ between sexes or age-groups. Bouts ≥1 min across days were longer for men than women and longer during weekend days than weekdays (p < 0.05). The number of bouts ≥1 min was greater during weekdays than weekend days (p < 0.05). Bouts ≥60 min were longer for men than women (p < 0.05). The duration of sedentary breaks was longer during weekdays than weekend days (p < 0.001). There were no differences between age-groups.
Adults with ID spend a large portion of the day in SB primarily of short bouts. Despite small differences, SB levels and patterns were similar for men and women with ID and across age-groups throughout the week.
关于美国智障成年人久坐行为（SB）水平和模式的数据有限。
检测美国智障成年人的 SB 水平和模式，以及这些水平和模式在性别、年龄组和工作日与周末之间的差异。
52 名智障成年人（25 名男性；年龄 45±14 岁）在清醒期间佩戴 Hip 加速度计（wGT3X-BT；Actigraph）连续 7 天。我们确定了总久坐时间、≥1、≥10、≥30 和≥60 分钟的久坐时间比例以及≥10 分钟的久坐时间间隔。我们根据性别、中位数分割（≤48 岁与>48 岁）以及一周中的不同日子，考察了 SB 变量的差异。
在 1-30 分钟的短时间内，总久坐时间为 514±139 分钟·天，性别和年龄组之间没有差异。与女性相比，男性在多天内的≥1 分钟的久坐时间更长，周末的时间比工作日更长（p<0.05）。工作日的≥1 分钟的久坐时间比周末更长（p<0.05）。男性的≥60 分钟的久坐时间比女性更长（p<0.05）。工作日的久坐休息时间比周末更长（p<0.001）。年龄组之间没有差异。
智障成年人在一天中大部分时间都处于久坐状态，主要是短时间的久坐。尽管存在微小差异，但智障男性和女性以及整个一周内的不同年龄组的 SB 水平和模式相似。
