Langenskiöld Charlotta, Berg Annelie, Yang Liyun
Unit of Occupational Medicine, Institute of Environmental Medicine, Karolinska Institutet, Solnavägen 4, SE-113 65 Stockholm, Sweden.
Division of Ergonomics, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Hälsovägen 11C, SE-141 57 Huddinge, Sweden.
Int J Environ Res Public Health. 2023 Sep 11;20(18):6741. doi: 10.3390/ijerph20186741.
Encouraging feedback is shown to increase motivation and facilitate learning in different settings, though there is a lack of knowledge of applying it in work technique training. This pilot study aimed to evaluate two accumulated vibrotactile feedback strategies for work technique training using a smart workwear system. Eight women and two men participated in the study. They were divided into two groups, receiving the corrective feedback or the combined corrective and encouraging feedback while doing simulated manual handling tasks in a lab environment. Questionnaires and semi-structured interviews were used to evaluate the motivation, learning, and user experiences. In this small sample size, we saw that both groups significantly improved their work technique of upper arm and trunk postures, and no significant difference between groups was seen. In addition, both groups reported increased ergonomic awareness, were satisfied with the feedback training, and considered the system useful. However, the combined feedback group had slightly lower ratings of motivation and more negative experiences of the corrective feedback itself compared to the corrective feedback group. Both groups had positive experiences with the encouraging feedback. Future research should consider investigating the long-term learning effects of using solely corrective or encouraging accumulated feedback for work technique training with such systems.
研究表明，积极的反馈能够提高积极性，并在不同环境中促进学习，不过在工作技能培训中应用反馈方面，人们还缺乏相关知识。这项初步研究旨在评估使用智能工作服系统进行工作技能培训的两种累积振动触觉反馈策略。八名女性和两名男性参与了该研究。他们被分成两组，在实验室环境中进行模拟手动操作任务时，一组接收纠正性反馈，另一组接收纠正性和鼓励性相结合的反馈。通过问卷调查和半结构化访谈来评估动机、学习情况和用户体验。在这个小样本中，我们发现两组在上臂和躯干姿势的工作技能方面都有显著提高，且两组之间没有显著差异。此外，两组都表示人体工程学意识有所增强，对反馈训练感到满意，并认为该系统有用。然而，与纠正性反馈组相比，组合反馈组的动机评分略低，对纠正性反馈本身的负面体验更多。两组对鼓励性反馈都有积极的体验。未来的研究应考虑调查使用此类系统仅进行纠正性或鼓励性累积反馈进行工作技能培训的长期学习效果。
