Musculoskeletal disorders among backpack pesticide sprayers in less than 10 years experience wokers

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Saowarot Phuaphonthep
Amarin Kongtawelert
Dusit Sujirarat
Petcharatana Bhuanantanondh


Musculoskeletal disorders (MSDs) are one of the health problems that can be
encountered among backpack pesticide sprayers. Carrying the heavy backpack spraying
machine and performing the inappropriate posture are these are the potential causes of MSDs.
This research study was a cross-sectional descriptive study conducted in Phichai, Uttaradit
province. The objectives of this study were to determine the prevalence of musculoskeletal
disorders and factors associated with the musculoskeletal disorders among backpack pesticide
sprayers. The sample in this study was 187 workers whose had the work experience less than
10 years. The modified Nordic questionnaire was used as a tool for collecting data. Data
analysis was performed using descriptive statistics and inferential statistics, Chi-square and
Multiple logistic regression. The results of this study found that the prevalence of
musculoskeletal disorders during the past 12 months and 7 days were 88.2% and 81.8%,
respectively. Factors associated with musculoskeletal disorders included age, weight of the
spraying machine, muddy ground, and vibration of the spraying machine. The results in this
study will provide the better understanding in health promotion, prevention, surveillance,
reduction of hazards among the backpack spray workers. Which affect to the quality of life and
effectionly work in workers.

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