Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
Department of Orthopedic Surgery, Sanggye Paik Hospital, College of Medicine, Inje University, Seoul, Republic of Korea.
PLoS One. 2018 Nov 26;13(11):e0207759. doi: 10.1371/journal.pone.0207759. eCollection 2018.
This study aimed to analyze the association between low handgrip strength (HGS) and low back pain (LBP) according to physical activity (PA) in the general population aged over 50 years.
Nationwide health surveys and examinations were performed in a cross-sectional representative of the Korean general population (n = 7,550 in 2014, n = 7,380 in 2015). Chronic LBP status was determined by self-reported survey responses with respect to the occurrence of LBP for more than 30 days during the previous 3 months. Maximal HGS was determined as the maximal strength of the dominant hand, and low HGS was defined as measurement in the lower 20th percentile of HGS measurements for the general population. High PA was defined as muscle-strengthening exercise for at least 3 days within 1 week. Demographics, medical history, and other variables were used to analyze adjusted weighted logistic regression models with propensity score matching. After propensity score matching, 429 participants were included in each group.
Analysis was confined to those aged 50-89 years who responded to the chronic LBP survey and had no missing data on HGS. Low HGS and LBP showed significant association in the crude logistic regression model. In the multiple logistic regression model, after adjusting for confounding factors, low HGS was significantly associated with LBP in women with low PA (adjusted odds ratio [aOR]: 1.75, p = 0.047). In the logistic regression model after propensity score matching, low HGS was also significantly related to LBP in women with low PA (aOR: 3.12, p = 0.004).
Our study showed the relationship between low HGS and LBP using a cross-sectional Korean population-based health survey. Low HGS in women aged over 50 years with low PA was significantly associated with the presence of LBP.
本研究旨在分析 50 岁以上人群中，低握力（HGS）与下背痛（LBP）与体力活动（PA）之间的关系。
本研究采用韩国全国性健康调查和检查，对代表性的韩国一般人群（2014 年为 7550 人，2015 年为 7380 人）进行了横断面研究。慢性 LBP 状态通过自我报告的调查结果来确定，即过去 3 个月内有超过 30 天的 LBP 发作。最大握力（HGS）的测定采用惯用手握力的最大力量，低握力（HGS）定义为 HGS 测量值低于一般人群 HGS 测量值的第 20 百分位数。高强度 PA 定义为每周至少进行 3 天的肌肉强化运动。使用人口统计学、病史和其他变量进行分析，采用倾向评分匹配的调整加权逻辑回归模型。在倾向评分匹配后，每组纳入 429 名参与者。
分析仅限于对慢性 LBP 调查做出回应且 HGS 无缺失数据的 50-89 岁人群。在未经调整的逻辑回归模型中，低 HGS 和 LBP 之间存在显著关联。在多变量逻辑回归模型中，在校正混杂因素后，低 HGS 与低 PA 的女性 LBP 显著相关（调整优势比[aOR]：1.75，p=0.047）。在倾向评分匹配后的逻辑回归模型中，低 HGS 与低 PA 的女性 LBP 也显著相关（aOR：3.12，p=0.004）。
本研究使用基于韩国人群的横断面健康调查，展示了低 HGS 与 LBP 之间的关系。低 PA 的 50 岁以上女性低 HGS 与 LBP 的发生显著相关。
