Fig. 2

Low back pain prevalence and reported physical activity among male and female at measured time points. a shows prevalence of moderate/high level of physical activity ( ≥ 2 days per week) among men. b shows prevalence of low back pain in men (mild pain = 1, moderate pain = 2-3, moderate/severe = ≥ 4) c shows prevalence of moderate/high level of physical activity ( ≥ 2 days per week) among women. d shows prevalence of low back pain in women (mild pain = 1, moderate pain = 2-3, moderate/severe = ≥ 4)