Assessing the Effectiveness of Manual Handling Training in Reducing Forceful Exertion for Workers in a Medical Device Manufacturing Company

Abstract

Workplace ergonomics is important for ensuring employee health and 
safety, especially in industries involving manual handling tasks. This 
study evaluates the effectiveness of manual handling training in 
reducing forceful exertion among workers in a medical device 
manufacturing company. The primary objectives are to identify the 
prevalence of forceful exertion injuries, assess the knowledge gained 
from the training program and provide recommendations to sustain 
ergonomic practices. The research involved 20 workers from the Test 
Department, who regularly engage in tasks such as setting up and 
storing tester fixtures, motor boxes, ICT jigs and relocating stabilizers, 
all of which require significant physical effort. A mixed-method 
approach was employed, combining document reviews, self-assessment 
surveys and pre- and post-training evaluations. An Ergonomic Risk 
Assessment (ERA) conducted by an external assessor identified forceful 
exertion as a significant risk factor, recommending manual handling 
training to mitigate these risks. The findings revealed that lower back 
and foot discomfort were prevalent among workers, primarily due to 
repetitive heavy lifting and prolonged standing. The manual handling 
training significantly improved worker's knowledge, as evidenced by 
the increase in post-training test scores. The paired t-test analysis 
confirmed a statistically significant difference between pre- and post
training scores, indicating the knowledge gained from the training. 
Feedback from participants was overwhelmingly positive, highlighting 
the training's relevance and applicability to their work. 
Recommendations include organizing cross-training events, conducting 
more practical sessions, displaying lifting weight guidelines to enhance 
ergonomic awareness and implementing scissor lifter trolleys or step 
stools to reduce ergonomic risks.