• Diki Bima Prasetio Faculty of Public Health, Diponegoro University, Semarang, Indonesia
  • Yuliani Setyaningsih Faculty of Public Health, Diponegoro University, Semarang, Indonesia
  • Suhartono Faculty of Public Health, Diponegoro University, Semarang, Indonesia
  • Suroto Faculty of Public Health, Diponegoro University, Semarang, Indonesia



Clay, Fatigue, Lactic acid, Roof, Worker


The lactic acid will inhibit the work of enzymes and interfere with chemical reactions and inhibit muscle contractions so that they become weak and eventually become fatigued. Excessive physical activity results in an increase in lactic acid, this occurs in tile making workers. The purpose of this study was to analyze the relationship between individual characteristics and work factors with lactic acid in tile-making workers in Karangasem Village, Wirosari District, Grobogan Regency, Central Java, Indonesia. This study uses correlation analysis and cross-sectional design. The total of 1887 tile-making workers in Grobogan, Indonesia were randomly selected. This study uses total random sampling to make workers as respondents. The inclusion criteria in this study were workers who agreed to participate in this study. Workers who do not agree will not be included in this study. The independent variables in this study were individual characteristics and heat stress. The variable in this study was lactic acid levels. The statistical test used was chi-square to analyze the correlation between the independent variable and the specified variable. The results in thisstudy there are eight related hypotheses, namely gender, marital status, education level, disease history, type of work, alcohol consumption habits and smoking habits have the same p-value of 0.000 (p < 0.05) and work stress p - value 0.046 ((p < 0.05). Fatigue can be prevented by monitoring worker safety and health.


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How to Cite

Prasetio, D. B., Setyaningsih, Y., , S., & , S. (2023). INDIVIDUAL, HABITS, AND WORK ENVIRONMENT FACTORS ASSOCIATED WITH BLOOD LACTIC ACID LEVELS IN ROOF TILE MANUFACTURING WORKERS. Malaysian Journal of Public Health Medicine, 23(1), 253–260.