Ergonomics Training Program to Novice and Experienced Workers in Poultry Processing Industry: A Quasi-experimental Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 133
- 主要终点
- Change from Musculoskeletal Complains at 2 months
研究概览
简要总结
This quasi-experimental study was performed in poultry processing industry. The study aimed to evaluate the benefits of ergonomic training for novice and experienced workers. Sociodemographic and occupational questionnaires were evaluated, musculoskeletal complaints and pain intensity, perceived occupational effort, biomechanical exposure and perception in adopting the training. Complaints in the cervical, wrist and lumbar region were reduced with training, but the intensity of pain was only reduced in the wrist region. There was a reduction in the occupational biomechanical exposure from pre-training, to the post-immediate, and from pre-training to after 2 months for both beginners and experienced. The group of novice workers differed from those with the highest biomechanical exposure reduction in the cutting room tasks. All workers were benefited by ergonomic training in the short and medium term.
详细描述
The research was submitted to the Local Research Ethics Committee and approved by the number 734.500.
Were included 51 employees from the packing and cutting room sectors. The workers were allocated to Novato and Experienced workers groups. The inclusion criteria for the Novato workers group were to be newly hired (1 to 2 days in the company) and not have previous experience in a poultry processing industry, or butcher's shop. It is to ensure that they did not have prior knowledge of the activity. In the case of the group of experienced workers.
The exclusion criteria were they worked on the task for more than six months and not be absent during the study period (scheduled vacations). Workers who had already received ergonomic training, such as general guidelines and postural adjustments, as well as pregnant women and people with disabilities were excluded.
Outcomes measure
- Musculoskeletal Complains and Pain Intensity The Nordic Musculoskeletal Questionnaire was used to investigate the presence of musculoskeletal symptoms in the last month, using dichotomous responses (yes or no) The visual analogue pain scale evaluated the intensity of symptoms indicating "absence of pain" (0) on one side and the opposite side "unbearable pain" (10 cm) (Carlsson 1982). The QNSO and pain scale were applied in both groups at the baseline, and after 2 months of the ergonomic training program.
- Biomechanical Exposure Analysis The analysis of occupational biomechanical exposure occurred through a Poultry processing Check list (PPChecklist) created for the study. The PPChecklist evaluation criteria were based on observational methods for biomechanical exposure analysis, such as the Rapid Upper Limb Assessment (RULA) and Strain Index and the Checklist for Musculoskeletal Risk Assessment (RARME).
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Outcomes Assessor)
盲法说明
The evaluators performed the biomechanical exposure analysis without knowing that the workers were from the novice and experienced group.
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •To Novato workers
- •1 to 2 days in the company
- •Not have previous experience in a frigorifico, or butcher's shop
- •Not have prior knowledge of the activity. To experienced workers
- •Work on the task for more than six months
- •Be present in company during the study period
排除标准
- •For all workers
- •Had already received ergonomic training (general guidelines and postural adjustments)
- •Pregnant women
- •People with disabilities.
研究组 & 干预措施
Novices
They received ergonomic training after 1-2 days of hiring to do the work in the cutting room, and packaging sectors. They did not have experience in the refrigerator or butchers, so they had the minimum of information about tasks and risks.
干预措施: Ergonomic Training (Other)
Experienced
They received the same ergonomic training as the newbies, and should have been hired for more than 6 months in the company. In this period they had already acquired patterns of movement and self-protection to accomplish the tasks.
干预措施: Ergonomic Training (Other)
结局指标
主要结局
Change from Musculoskeletal Complains at 2 months
时间窗: baseline, after two months
The Nordic Musculoskeletal Questionnaire was used to investigate the presence of musculoskeletal symptoms in the last month with dichotomous responses (yes or no)
Change from Pain Intensity at 2 months
时间窗: baseline, after two months
The visual analogue pain scale evaluated the intensity of symptoms indicating "absence of pain" (0) on one side and the opposite side "unbearable pain" (10 cm).
Change from Biomechanical Exposure immediately after the interventional training and after two months
时间窗: baseline, after 1-2 days, after two months
Analysis of the biomechanical exposure of each segment (cervical, shoulder, forearm, wrist, hand and spine) by by an observational method developed for the study with score (0-19 points).
次要结局
未报告次要终点
研究者
Rosimeire Simprini Padula
Adjunt professor
Universidade Cidade de Sao Paulo