高姿势要求作业工人的颈部疼痛与姿势平衡——一项横断面研究。
Neck pain and postural balance among workers with high postural demands - a cross-sectional study.
机构信息
National Research Centre for the Working Environment, Copenhagen, Denmark.
出版信息
BMC Musculoskelet Disord. 2011 Aug 1;12:176. doi: 10.1186/1471-2474-12-176.
BACKGROUND
Neck pain is related to impaired postural balance among patients and is highly prevalent among workers with high postural demands, for example, cleaners. We therefore hypothesised, that cleaners with neck pain suffer from postural dysfunction. This cross-sectional study tested if cleaners with neck pain have an impaired postural balance compared with cleaners without neck pain.
METHODS
Postural balance of 194 cleaners with (n = 85) and without (N = 109) neck pain was studied using three different tests. Success or failure to maintain the standing position for 30 s in unilateral stance was recorded. Participants were asked to stand on a force platform for 30 s in the Romberg position with eyes open and closed. The centre of pressure of the sway was calculated, and separated into a slow (rambling) and fast (trembling) component. Subsequently, the 95% confidence ellipse area (CEA) was calculated. Furthermore a perturbation test was performed.
RESULTS
More cleaners with neck pain (81%) failed the unilateral stance compared with cleaners without neck pain (61%) (p < 0.01). However, the risk of failure in unilateral stance was statistically elevated in cleaners with concurrent neck/low back pain compared to cleaners without neck/low back pain (p < 0.01), whereas pain at only neck or only low back did not increase the risk. Impaired postural balance, measured as CEA (p < 0.01), rambling (p < 0.05) and trembling (p < 0.05) was observed among cleaners with neck pain in comparison with cleaners without neck pain in the Romberg position with eyes closed, but not with eyes open.
CONCLUSIONS
Postural balance is impaired among cleaners with neck pain and the current study suggests a particular role of the slow component of postural sway. Furthermore, the unilateral stance test is a simple test to illustrate functional impairment among cleaners with concurrent neck and low back pain.
TRIAL REGISTRATION
ISRCTN96241850.
背景
颈部疼痛与患者姿势平衡受损有关，在姿势需求较高的工人中（例如清洁工），这种情况非常普遍。因此，我们假设患有颈部疼痛的清洁工存在姿势功能障碍。本横断面研究旨在检验患有颈部疼痛的清洁工与无颈部疼痛的清洁工相比，其姿势平衡是否受损。
方法
通过三种不同的测试来研究 194 名患有（n = 85）和不患有（N = 109）颈部疼痛的清洁工的姿势平衡。记录他们在单足站立 30 秒时能否保持站立姿势。要求参与者睁眼和闭眼在 Romberg 位置站在力台上 30 秒。计算出晃动的压力中心，并将其分为缓慢（漫游）和快速（颤抖）成分。随后，计算 95%置信椭圆面积（CEA）。此外，还进行了一项扰动测试。
结果
与无颈部疼痛的清洁工（61%）相比，患有颈部疼痛的清洁工（81%）中有更多人无法通过单足站立测试（p < 0.01）。然而，与无颈部/下腰痛的清洁工相比，同时患有颈部/下腰痛的清洁工单足站立测试失败的风险更高（p < 0.01），而只有颈部或下腰痛并不会增加风险。与无颈部疼痛的清洁工相比，患有颈部疼痛的清洁工在闭眼 Romberg 位置的姿势平衡（CEA）（p < 0.01）、漫游（p < 0.05）和颤抖（p < 0.05）均较差，但睁眼 Romberg 位置则没有差异。
结论
患有颈部疼痛的清洁工的姿势平衡受损，本研究提示姿势晃动的缓慢成分在其中起着特殊作用。此外，单足站立测试是一种简单的测试，可以说明同时患有颈部和下腰痛的清洁工的功能受损。
试验注册
ISRCTN96241850。
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