Spine Center and Department of Orthopedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam, Gyeonggi-do 13620, Republic of Korea.
Department of Orthopedic Surgery, Seoul National University College of Medicine and Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea.
Spine J. 2018 Nov;18(11):2051-2058. doi: 10.1016/j.spinee.2018.04.003. Epub 2018 Apr 17.
There is increasing evidence supporting an association between sitting time and low back pain (LBP). However, the degree of the association between the total daily sitting time and LBP in the general population is poorly understood.
The present study aimed (1) to analyze the association between the duration of sitting time and LBP, and (2) to examine this association according to the degree of physical activity in population over 50 years of age with a nationally representative sample of Korean adults.
This is a cross-sectional study.
Data from version VI-2, 3 of the Korea National Health and Nutrition Examination Survey (KNHANES) performed in 2014 and 2015 were analyzed.
Multiple logistic regression was performed to find the rates of association between chronic LBP, level of sitting time, and physical activity.
Nationwide health surveys and examinations were conducted in general Korean representative populations (n=7,550 in 2014, n=7,380 in 2015). Chronic LBP was defined as self-reported LBP lasting for more than 30 days during the past 3 months in a health survey. Sitting time and daily physical activity were evaluated using the long version of the International Physical Activity Questionnaires (IPAQ). The duration of sitting time was divided into two categories according to the median value (7 hours) and further divided into four categories using quartiles. Physical activity was also divided into low and high physical activity according to duration of mid- to high-intensity activities. There were no sources of funding and no conflicts of interest associated with the present study.
On multiple logistic regression analysis, sitting time more than 7 hours/day was significantly associated with LBP (adjusted odds ratio 1.33, p<.001). The risk of LBP increased with increasing duration of sitting time. In participants with low levels of physical activity, the duration of sitting time showed more positive association with LBP than that in all the participants and participants with high levels of physical activity.
Longer duration of sitting time is a risk factor for LBP. Furthermore, long duration of sitting time with low physical activity further increases the risk of LBP.
越来越多的证据表明，久坐时间与下背痛（LBP）之间存在关联。然而，一般人群中总久坐时间与 LBP 之间的关联程度尚不清楚。
本研究旨在（1）分析久坐时间与 LBP 之间的关系，（2）使用具有全国代表性的韩国成年人样本，根据身体活动程度检查该关系。
这是一项横断面研究。
分析了 2014 年和 2015 年进行的韩国国家健康和营养检查调查（KNHANES）第六版第二、三期的数据。
多因素逻辑回归分析了慢性 LBP、久坐时间水平和体力活动之间的关联率。
在一般韩国代表性人群中进行了全国性健康调查和检查（2014 年 n=7550，2015 年 n=7380）。慢性 LBP 定义为在健康调查中过去 3 个月内自我报告的持续超过 30 天的 LBP。使用国际体力活动问卷（IPAQ）的长版本评估久坐时间和日常体力活动。根据中位数（7 小时）将久坐时间分为两个类别，并使用四分位数将其进一步分为四个类别。体力活动也根据中高强度活动的持续时间分为低体力活动和高体力活动。本研究无资金来源，无利益冲突。
多因素逻辑回归分析显示，每天久坐时间超过 7 小时与 LBP 显著相关（调整后的优势比 1.33，p<.001）。随着久坐时间的延长，LBP 的风险增加。在体力活动水平较低的参与者中，与所有参与者和体力活动水平较高的参与者相比，久坐时间的持续时间与 LBP 的关联更为积极。
较长的久坐时间是 LBP 的一个危险因素。此外，低体力活动的长时间久坐时间会进一步增加 LBP 的风险。
