Effects of a posture correction feedback system on neck and trunk posture and muscle activity during computer work

IF 2.5 2区 工程技术 Q2 ENGINEERING, INDUSTRIAL International Journal of Industrial Ergonomics Pub Date : 2024-01-01 DOI:10.1016/j.ergon.2023.103540
Su-bin Kim , Seo-hyun Kim , One-bin Lim , Chung-hwi Yi , Gyu-hyun Han
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Abstract

Background

Computer work often involves prolonged periods of static sitting, which can result in incorrect posture and increase the risk of developing musculoskeletal disorders and associated pain. The incidence of neck pain among computer workers is increasing due to the association with incorrect posture. To solve the problem accurately, it is necessary to correct the incorrect posture.

Objective

This study investigated how the angle and muscle activity of the upper body changed when a posture correction feedback (PCF) system was applied during computer work.

Methods

Fifteen healthy, young adults participated in this study that was conducted in two sessions of 16 min each: the first without feedback and the second with feedback. Neck and trunk angle changes of the participants, as well as cervical erector spinae, upper trapezius, and thoracic erector spinae muscle activation, were measured during computer work. Kinematic and kinetic data were analyzed using a two-way repeated analysis of variance.

Results

Neck and trunk flexion were reduced with the feedback system. Muscle activation of the cervical erector spinae significantly increased over time with computer use and decreased with feedback system use (p < 0.05).

Conclusion

Our study demonstrates the PCF system may be an effective tool for alleviating postural stress in the neck and trunk in an office setting.

Relevance to industry

The PCF system can assist computer workers in improving posture. This demonstrates ergonomic benefits and does not interfere with computer work, making it suitable for use in a real work environment. This can help prevent musculoskeletal disorders and associated pain resulting from prolonged computer work.

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姿势矫正反馈系统对电脑工作时颈部和躯干姿势及肌肉活动的影响
背景电脑工作经常需要长时间静坐,这会导致姿势不正确,增加患肌肉骨骼疾病和相关疼痛的风险。由于与姿势不正确有关,电脑工作者颈部疼痛的发病率正在上升。为了准确地解决问题,有必要纠正不正确的姿势。本研究调查了在电脑工作期间应用姿势纠正反馈(PCF)系统时,上半身的角度和肌肉活动会发生怎样的变化。方法 15 名健康的年轻成年人参加了本研究,研究分两次进行,每次 16 分钟:第一次无反馈,第二次有反馈。在电脑工作期间,测量了参与者的颈部和躯干角度变化,以及颈椎竖棘肌、斜方肌上部和胸椎竖棘肌的激活情况。采用双向重复方差分析对运动学和动力学数据进行了分析。结论我们的研究表明,PCF 系统可能是减轻办公室环境中颈部和躯干姿势压力的有效工具。 对行业的意义PCF 系统可以帮助电脑工作者改善姿势。PCF 系统可帮助电脑工作者改善姿势,这不仅符合人体工程学原理,而且不会影响电脑工作,因此适合在实际工作环境中使用。这有助于预防因长时间电脑工作而导致的肌肉骨骼疾病和相关疼痛。
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来源期刊
International Journal of Industrial Ergonomics
International Journal of Industrial Ergonomics 工程技术-工程:工业
CiteScore
6.40
自引率
12.90%
发文量
110
审稿时长
56 days
期刊介绍: The journal publishes original contributions that add to our understanding of the role of humans in today systems and the interactions thereof with various system components. The journal typically covers the following areas: industrial and occupational ergonomics, design of systems, tools and equipment, human performance measurement and modeling, human productivity, humans in technologically complex systems, and safety. The focus of the articles includes basic theoretical advances, applications, case studies, new methodologies and procedures; and empirical studies.
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