| 1. |
- Dong, Yidan, et al.
(författare)
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Study on the Associations of Individual and Work-Related Factors with Low Back Pain among Manufacturing Workers Based on Logistic Regression and Structural Equation Model
- 2021
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Ingår i: International Journal of Environmental Research and Public Health. - : MDPI. - 1661-7827 .- 1660-4601. ; 18:4
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Tidskriftsartikel (refereegranskat)abstract
- Work-related musculoskeletal injuries are one of the major occupational health issues of the workers, especially low back pain (LBP). The aim of this study was to survey the prevalence of LBP among manufacturing workers and to identify associations of individual and work-related factors with LBP. A cross-sectional questionnaire study was performed with 1173 participating manufacturing workers. The questionnaire included individual factors, psychosocial and physical exposures, and musculoskeletal discomfort. It was analyzed by logistic regression and structural equation modeling (SEM). The 1-year prevalence of LBP among Chinese manufacturing workers was 33.6%. Logistic regression analysis showed that job tenure, awkward postures, vibration and job demand were positively-while social support and job control were negatively associated with LBP (p < 0.05). The SEM results indicated that, as shown in other studies, job types, job tenure, postural load, high job demand, low job control and vibration were directly associated with LBP, but also that job types, high job demand, low social support and vibration may have indirect effects on LBP-mediated by postural load.
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| 2. |
- Forsman, Mikael, Professor, et al.
(författare)
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A Low-Cost Sensor-Based Smartphone App for Wrist Velocity Measurements
- 2021
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Ingår i: Lecture Notes in Networks and Systems. - Cham : Springer Nature. ; , s. 763-767
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Konferensbidrag (refereegranskat)abstract
- A quantitative wrist angular velocity to wrist-related disorders relation have been reported in hand intensive work. This velocity has been complicated to measure. A new sensors and smartphone method was developed and tested. The result indicate the prototype as a promising tool, which in the future may support researchers and practitioners in exposure quantification and risk assessment of hand intensive repetitive work tasks.
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| 3. |
- Yang, Liyun, 1992-, et al.
(författare)
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Comparison of Accuracy of Inertial Measurement Units, Goniometer and Optical Tracking System for Wrist Velocity Assessment
- 2021
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Ingår i: Lecture Notes in Networks and Systems. - Cham : Springer Nature. ; , s. 868-873
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Konferensbidrag (refereegranskat)abstract
- Wrist angular velocity assessment is important for assessing the risks in hand-intensive work. This study compared the measurement accuracy of an inertial measurement unit (IMU)-smartphone system, an electronic goniometer and an optical tracking system (OTS) for measuring wrist flexion velocity. Six participants performed three sets of standard hand/wrist movements and three simulated work tasks. The results showed the IMUs had adequate accuracy comparing to the OTS during standard movements of low to medium pace. The accuracy of the IMUs compared to the OTS was lower during fast pace movements and simulated work tasks. Still, the IMUs had in general small differences compared to the goniometer in flexion/extension and simulated work tasks. Therefore, the IMU system may be used by researchers and practitioners for assessing wrist flexion velocity in hand-intensive work. Future studies need to explore algorithms to improve the IMU-smartphone system and reduce errors.
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| 4. |
- Yang, Liyun, 1992-, et al.
(författare)
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Distance Ergonomics Laboratory Using Flipped Classroom and Smartphone Application as Learning Tools – A Case Study
- 2021
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Ingår i: 21st Congress of the International Ergonomics Association, IEA 2021. - Cham : Springer Nature. ; , s. 130-134
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Konferensbidrag (refereegranskat)abstract
- Distance laboratory training in ergonomics with a flipped-classroom approach and smartphone applications as a tool was designed, implemented, and evaluated at two Swedish universities. Most students (10/13) were satisfied with the laboratory training. In this small-scale study, sufficient preparation time, tailored instructions and timely support during the pre-lab work were identified as factors that may improve students’ learning. This case study points to that distance laboratory training can be a feasible method in future ergonomics education. The findings also contribute to better understanding on the design of distance laboratory training in the future.
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