Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST), 505 Boul. de Maisonneuve O, Montreal, Quebec, H3A 3C2, Canada; Center for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR), Montreal, Quebec, Canada.
School of Physical and Occupational Therapy, McGill University, 3654 prom Sir-William-Osler, Montreal, Quebec, H3G 1Y5, Canada; Center for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR), Montreal, Quebec, Canada.
Appl Ergon. 2018 May;69:17-24. doi: 10.1016/j.apergo.2018.01.001. Epub 2018 Jan 6.
Workers with low back pain (LBP) may benefit from wearing a lumbar belt (LB), but the biomechanical and psychological mechanisms involved are not fully understood. Two types of flexible LB (extensible and non-extensible) were compared to a control condition (no LB) regarding pain-related (pain, fear of pain and catastrophizing) and biomechanical (range of motion - ROM) outcomes related to two tasks: maximal trunk flexion-extension and manual material handling. Healthy controls and participants with LBP were tested. During both tasks, the two LBs reduced the lumbar ROM in participants with LBP in the same way as healthy controls. This was observed even at the beginning of the trunk flexion movement, allowing generalization to many work tasks, that is to say tasks performed with small or deep trunk flexion. The two LBs reduced pain, fear of pain and catastrophizing in subjects with LBP. That may help a gradual re-exposure to physical work activities (disability prevention perspective), or maintaining these activities (secondary prevention perspective), following a LBP episode.
患有下背痛 (LBP) 的工人可能会从佩戴腰部支撑带 (LB) 中受益，但涉及的生物力学和心理机制尚不完全清楚。两种类型的柔性 LB（可伸展和不可伸展）与对照条件（无 LB）进行了比较，比较了与两个任务相关的与疼痛相关的（疼痛、对疼痛的恐惧和灾难化）和生物力学（运动范围 - ROM）的结果：最大躯干屈伸和手动搬运材料。对健康对照者和 LBP 参与者进行了测试。在这两项任务中，这两种 LB 以与健康对照组相同的方式减少了 LBP 参与者的腰椎 ROM。即使在躯干屈曲运动开始时，也可以观察到这种情况，这使得它可以推广到许多工作任务，即使用小或深的躯干屈曲来完成的任务。这两种 LB 减轻了 LBP 患者的疼痛、对疼痛的恐惧和灾难化。这可能有助于在经历 LBP 发作后，逐渐重新接触体力活动（预防残疾的角度），或维持这些活动（二级预防角度）。
