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首页> 外文期刊>Occupational and environmental medicine >Effectiveness of a feedback signal in a computer mouse on upper extremity musculoskeletal symptoms: a randomised controlled trial with an 8-month follow-up
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Effectiveness of a feedback signal in a computer mouse on upper extremity musculoskeletal symptoms: a randomised controlled trial with an 8-month follow-up

机译：电脑鼠标对上肢肌肉骨骼症状的反馈信号的有效性：8个月随访的随机对照试验

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Objectives: To study the effectiveness of using a computer mouse with a feedback signal for upper extremity musculoskeletal symptoms in office workers. Methods: A randomised controlled trial with 8 months of follow-up was carried out. The intervention consisted of a computer mouse with a feedback signal. In total, 354 subjects were allocated to the intervention group or the control group. Measurements were performed with electronic questionnaires at baseline, after 4 months and after 8 months. Outcome variables were the prevalence and incidence of upper extremity musculoskeletal symptoms and disability in the upper extremities. The intervention process was evaluated by software registration. Results: The use of the mouse with a feedback signal resulted in a significant decrease in duration of mouse usage over time. No differences were found in the number of mouse usage rest breaks. No differences were found in the prevalence (p = 0.29) or incidence (p = 0.832) of upper extremity musculoskeletal symptoms between the groups 8 months after baseline. The prevalence decreased from 49% at baseline to 44% after 8 months in the control group, while it remained at 36% in the intervention group. The incidence was 21% in the control group and 22% in the intervention group. Among the population with upper extremity musculoskeletal symptoms at baseline, the risk of experiencing symptoms after 8 months did not differ between the groups (p = 0.49). Minor disability was found in both groups. In the intervention group, a lower level of physical disability over time was reported than in the control group (p = 0.02).
机译：目的：研究使用带有反馈信号的电脑鼠标对上班族上肢肌肉骨骼症状的有效性。方法：进行了为期8个月的随访的随机对照试验。干预措施包括带有反馈信号的计算机鼠标。总共354名受试者被分配到干预组或对照组。在基线，4个月后和8个月后用电子问卷进行测量。结果变量是上肢肌肉骨骼症状的发生率和发生率以及上肢的残疾。干预过程通过软件注册进行评估。结果：使用带有反馈信号的鼠标会导致鼠标使用时间随着时间的推移而显着减少。鼠标使用休息时间的数量没有发现差异。基线后8个月，两组之间的上肢肌肉骨骼症状的患病率（p = 0.29）或发生率（p = 0.832）没有差异。对照组的患病率从基线时的49％降至8个月后的44％，而干预组的患病率仍为36％。对照组的发生率为21％，干预组的发生率为22％。在基线时具有上肢肌肉骨骼症状的人群中，8个月后出现症状的风险在两组之间没有差异（p = 0.49）。两组均发现轻度残疾。据报道，干预组随时间推移的身体残疾水平低于对照组（p = 0.02）。

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