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The purpose of this research was to determine the extent of the influence of Body Mass Index (BMI) Variations on musculoskeletal discomfort. The steps taken are first to calculate the Body Mass Index (BMI), measure the level of musculoskeletal discomfort of each cleaning worker who works in an elevated place by distributing the Nordic Body Map questionnaire, then perform a statistical test with the ChiSquare Test. The results of this research are painful areas of musculoskeletal discomfort is the left shoulder, right shoulder, back, waist, buttocks, right knee and left leg. From the ChiSquare Test results obtained p-value for the left shoulder = 0.006, right shoulder = 0.003, back = 0.00, waist = 0.00, buttocks = 0.00, right knee = 0.001 and left leg = 0.00, because all <0.05 then all null hypotheses are rejected, this fact means there is a relationship between BMI and musculoskeletal discomfort that is felt sick. The conclusion is an un-ergonomic posture in the work will cause the musculoskeletal discomfort area and the higher the person’s BMI level will be susceptible to pain complaints, the lower the BMI than the fewer complaints of pain.

The Relation of Musculoskeletal Discomfort with Body Mass Index (BMI) For Cleaning Workers, Who Work at an Elevated Place