Abstract：
This study compared the number of postural shifts and perceived discomfort while leaning and sitting on an air-filled seat cushion for 1 hour. Sixty office workers typed a standard text while leaning on a cushion placed behind the low back, sitting on a cushion placed under the buttocks, and sitting without a cushion (a control condition). The number of postural shifts was collected using a seat pressure mat device. Low back discomfort was assessed using the Borg CR-10 scale. Leaning on a seat cushion (22 shifts/h) led to a significantly higher number of postural shifts than sitting on a seat cushion (18 shifts/h) and the control condition (20 shifts/h). Leaning or sitting on a seat cushion significantly decreased low back discomfort compared to the control condition (p < 0.05). Leaning on a seat cushion placed behind the low back may be an effective means of preventing low back pain among office workers.
During prolonged sitting, using a seat cushion, whether leaning or sitting on it, may be more efficient in preventing low back pain compared to not using one. Particularly, leaning on a seat cushion led to more postural shifts during sitting compared to sitting on one or not using any.
During prolonged sitting, using a seat cushion, whether leaning or sitting on it, may be more efficient in preventing low back pain compared to not using one. Particularly, leaning on a seat cushion led to more postural shifts during sitting compared to sitting on one or not using any.
摘要：
这项研究比较了倾斜和坐在充气座垫上1小时时的姿势变化次数和感觉到的不适感。六十个上班族一边在靠在后腰后面的垫子上，一边输入标准文字，坐在臀部下面的垫子上，没有坐垫（控制条件）。使用座椅压力垫装置收集姿势偏移的数量。使用BorgCR-10量表评估腰部不适。倾斜座垫（22班/小时）导致的姿势转变次数明显高于坐在座垫（18班/小时）和控制条件（20班/小时）。与对照条件相比,倾斜或坐在座垫上显著降低了下背部不适感(p<0.05)。靠在下背部后面的座垫上可能是防止办公室工作人员腰痛的有效方法。
长时间坐着，使用座垫，无论是靠在上面还是坐在上面，与不使用腰痛相比，可能更有效地预防腰痛。特别是,与坐在坐垫上或不使用坐垫相比，坐在坐垫上导致更多的姿势变化。
长时间坐着，使用座垫，无论是靠在上面还是坐在上面，与不使用腰痛相比，可能更有效地预防腰痛。特别是,与坐在坐垫上或不使用坐垫相比，坐在坐垫上导致更多的姿势变化。
