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Possible mechanisms for the reduction of low back pain associated with standing on a sloped surface

机译：减少与站立在倾斜表面上相关的下背部疼痛的可能机制

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Prolonged standing in an occupational setting has long been associated with the development of low back pain. In response to this, researchers have investigated various interventions that can alleviate low back pain and discomfort, such as anti-fatigue mats, shoe insoles, and more recently, sloped platforms. The purpose of this study was to investigate the effects of a sloped surface on kinematics and trunk muscle thickness during quiet and prolonged occupational standing. Eleven participants performed 1-min quiet standing tasks on three surfaces - level ground, incline, and decline - followed by 16-min of prolonged standing in each condition. Trunk, lumbar, and global pelvis angles were measured during each standing condition, and muscle thickness measurements of erector spinae and the lateral abdominal wall were taken during the quiet standing task. During quiet standing, there were systematic changes in trunk, lumbar, and pelvis angles with the different surfaces; however, these changes were not accompanied by systematic changes in muscle thickness. The responses found during the quiet standing were consistent during prolonged standing. As a result, the reduced perceived low back pain found when using sloped platforms is likely not the result of changes in morphology of the trunk musculature, but might be related to the altered kinematics caused by standing on these platforms. ? 2012.
机译：长期在职业环境中站立与腰背痛的发展有关。针对这种情况，研究人员研究了各种可减轻腰痛和不适的干预措施，例如抗疲劳垫，鞋垫和最近的倾斜平台。这项研究的目的是研究在安静和长时间的职业站立期间，倾斜表面对运动学和躯干肌厚度的影响。 11名参与者在三个表面上执行了1分钟的安静站立任务-水平地面，倾斜和下倾-然后在每种情况下长时间站立16分钟。在每种站立状态下测量躯干，腰部和整体骨盆角度，在安静站立状态下测量直立脊柱和腹外侧壁的肌肉厚度。在安静站立期间，躯干，腰部和骨盆角度随不同表面发生系统性变化。然而，这些变化并没有伴随着肌肉厚度的系统性变化。安静站立时发现的反应与长时间站立时一致。结果，使用倾斜平台时发现的感觉到的下背部疼痛的减轻可能不是躯干肌肉组织形态变化的结果，而是可能与站立在这些平台上引起的运动学改变有关。 ？ 2012。

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