Figure 4From: The relationship between low back pain and leisure time physical activity in a working population of cleaners - a study with weekly follow-ups for 1 year a) Example of a cleaner who reported constant low to moderate LBP intensity (Black line) throughout the year and the simultaneous LTPA (Grey line), b) Example of a cleaner who reported a larger variation in LBP intensity (Black line) and the simultaneous LTPA (Grey line).Back to article page