<![CDATA[ObjectiveTo analyze the relationship between physical activity levels and low back pain (LBP) complaints among young adults in Beji District, Depok City, Indonesia.MethodsA quantitative cross-sectional study was conducted involving 287 respondents aged 18–29 years. The villages were randomly selected, while respondents were recruited using a convenience sampling technique. Physical activity levelswere assessed using the Baecke Questionnaire, which evaluates work, sports, and leisure-time activities. LBP complaints were measured using the Nordic Body Map Questionnaire. Data were analyzed using the Chi-square.ResultsMost respondents demonstrated a moderate level of physical activity, mild pain was the most commonly reported complaint in the middle back/waist, lower back, and buttock regions, while severe pain was reported by only a small number of respondents. Physical activity level was not significantly associated with the severity of middle back/waist pain (OR = 2.106; p = 0.551). However, significant associations were found between physical activity level and lower back pain severity (OR = 21.572; p < 0.001) and buttock pain severity (OR = 42.058; p < 0.001).ConclusionPhysical activity level was significantly associated with lower-back and buttock pain severity but not with middle back/waist pain severity. Moderate physical activity is associated with a reduced risk of lower back and buttock pain among young adults. Promoting regular physical activity and ergonomic practices may support musculoskeletal health and reduce the risk of LBP.Keywords:Low back pain, physical activity, young adults]]>
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