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. 2019 Jan 24;14(1):e0210429. doi: 10.1371/journal.pone.0210429

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© 2019 Fett et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — PACG = physically active control group, 1 = back pain intensity at the present time, 2 = worst back pain intensity during the past 3 month, 3 = average back pain intensity during the past 3 month, 4 = interference of back pain in usual activities (work, school or housework), 5 = interference of back pain with ability to take part in recreational, social and family activities, 6 = interference of back pain with ability to work, 7 = interference of back pain with ability to take part in training, 8 = interference of back pain with ability to take part in competition; * = p<0.05.