Canadian Centre for Health and Safety in Agriculture, College of Medicine, University of Saskatchewan, 104 Clinic Place, P.O. Box 23, Saskatoon, SK, Canada S7N 2Z4.
School of Physical Therapy, College of Medicine, University of Saskatchewan, Suite 3400, 104 Clinic Place, Saskatoon, SK, Canada S7N 2Z4.
Biomed Res Int. 2017;2017:5094509. doi: 10.1155/2017/5094509. Epub 2017 Oct 29.
Intensification of modern swine production has led to many new technologies, including needleless injectors. Although needleless injectors may increase productivity (by reducing injection time) and reduce needlestick injuries, the effect on risk for musculoskeletal disorders is not clear. This project will compare conventional needles with needleless injectors in terms of cost, productivity, injury rates, biomechanical exposures, and worker preference. Muscle activity (EMG) and hand/wrist posture will be measured on swine workers performing injection tasks with both injection methods. Video recordings during the exposure assessments will compare the duration and productivity for each injection method using time-and-motion methods. Injury claim data from up to 60 pig barns will be analyzed for needlestick and musculoskeletal injuries before/after needleless injector adoption. Workers and managers will be asked about what they like and dislike about each method and what helps and hinders successful implementation. The information above will be input into a cost-benefit model to determine the incremental effects of needleless injectors in terms of occupational health, worker preference, and the financial "bottom line" of the farm. Findings will be relevant to the swine industry and are intended to be transferable to other new technologies in animal production.
现代养猪业的集约化发展催生了许多新技术，其中包括无针注射器。虽然无针注射器可能会提高生产力（通过减少注射时间）并降低针刺伤的风险，但它对肌肉骨骼疾病风险的影响尚不清楚。本项目将从成本、生产力、受伤率、生物力学暴露和工人偏好等方面，对传统针头和无针注射器进行比较。在对两种注射方法进行注射任务时，将测量猪工的肌肉活动（肌电图）和手/腕姿势。使用时间和动作方法，通过暴露评估中的视频记录来比较每种注射方法的持续时间和生产力。在采用无针注射器之前/之后，将分析多达 60 个猪圈的针刺伤和肌肉骨骼损伤的伤害索赔数据。将询问工人和管理人员他们对每种方法的喜欢和不喜欢之处，以及哪些因素有助于或阻碍成功实施。上述信息将被输入成本效益模型，以确定无针注射器在职业健康、工人偏好和农场的财务“底线”方面的额外效果。研究结果与养猪业相关，旨在可推广应用于动物生产中的其他新技术。
