Simon Steven, Laurendi Laura, Meining Jonna, Dully Jonas, Dindorf Carlo, Maurer Lukas, Fröhlich Michael
Department of Sports Science, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany.
Medical Department, Dental Practice Dr. Laurendi, 67547 Worms, Germany.
Healthcare (Basel). 2024 Aug 21;12(16):1670. doi: 10.3390/healthcare12161670.
Individuals working in the field of dentistry have a high prevalence of musculoskeletal disorders (MSDs) owing to monotonous and one-sided physical exertion. Inertial measurement units (IMU) are increasingly shifting into focus for assessing postural risk at work. Therefore, the present study aimed to evaluate the effects of an ergonomic lecture and training intervention on postural risk and MSDs in dental assistant students using inertial sensor-based motion capture (MoCap). Eighteen female dental assistant students (age: 19.44 ± 6.83 years; height: 164.59 ± 5.32 cm; weight: 64.88 ± 16.52 kg; BMI: 19.70 ± 4.89 kg/m), randomly divided into intervention (n = 9) and control (n = 9) groups, participated in the present study. The participants completed the Nordic Questionnaire on MSD prevalence, after which a 90 s MoCap with Xsens IMU was performed. A lecture on ergonomics was provided, followed by a five-week intervention for the intervention group. Follow-up assessments were performed, and 5- and 18-week follow-up MSD questionnaires were administered. Mixed analysis of variance (MANOVA) showed a significant difference in the Rapid Upper Limb Assessment (RULA) and part-scores of the upper arm and wrist. Despite a reduction in MSDs, no significant differences in the time of measurement and groups were detected after the five-week training intervention and the 18-week follow-up questionnaire. A targeted ergonomics lecture was effective for dental assistant students, and technologies such as IMU improved workplace ergonomics in dentists. Further studies with a longer measurement periods, follow-up, and larger sample sizes are recommended.
由于工作中单调且单侧的体力消耗，牙科领域的从业者肌肉骨骼疾病（MSDs）患病率很高。惯性测量单元（IMU）在评估工作中的姿势风险方面越来越受到关注。因此，本研究旨在使用基于惯性传感器的运动捕捉（MoCap）评估人体工程学讲座和培训干预对牙科助理专业学生姿势风险和肌肉骨骼疾病的影响。18名女性牙科助理专业学生（年龄：19.44±6.83岁；身高：164.59±5.32厘米；体重：64.88±16.52千克；BMI：19.70±4.89千克/平方米）被随机分为干预组（n = 9）和对照组（n = 9），参与了本研究。参与者完成了关于肌肉骨骼疾病患病率的北欧问卷，之后使用Xsens IMU进行了90秒的运动捕捉。为干预组提供了一次人体工程学讲座，随后进行了为期五周的干预。进行了随访评估，并发放了5周和18周随访的肌肉骨骼疾病问卷。多变量方差分析（MANOVA）显示，快速上肢评估（RULA）以及上臂和手腕的部分得分存在显著差异。尽管肌肉骨骼疾病有所减少，但在为期五周的训练干预和18周随访问卷后，未发现测量时间和组间存在显著差异。有针对性的人体工程学讲座对牙科助理专业学生有效，IMU等技术改善了牙医工作场所的人体工程学。建议进行更长测量期、随访和更大样本量的进一步研究。
