Analysis of Factors Related to the Fatigue of Work on the Part of Production Workers at Pt. X Wonogiri

Work fatigue was feeling fatigued and discomfort the body related to work activities in a long time. The manifestation of a sense of weary marked with increasing concentration of blood lactic acid. Work fatigue is one of the problems for the health and safety of workers. PT. X is a manufacturer of traditional medicines (herbal) of high quality and cutting edge located in Wonogiri. Information from the company's clinics showed that each day approximately 10 people complaining of tired workers. This research aims to analyze the factors related to work fatigue using indicators increase in blood lactic acid concentration on production worker PT. X at the packaging. This research is quantitative research with cross sectional design research that was carried out in December to January 2014-2015. The research results obtained from 40 respondents, respondents overall increase blood concentration of lactic acid. Job factors i.e. time is working with great value relationships is highest at the onset of fatigue of working with indicator of the increase in the concentration of blood lactic acid, this is indicated by the value of the Sign. 0,061, through calculations with SPSS Regression logistic. The suggested recommendations in the management, namely providing facilities against worker like gymnastics with physical freshness for workers to maintain fitness nutritional, socialization work workers that reduces fatigue by giving sufficient caloric intake and socialization of ergonomics that reducing tiredness with attitude and an ergonomic way of working. Keywords: job Burnout, lactic acid, production worker