as acute, chronic, specific or non-specific, depending on the length of time it has persisted and the origin of the pain. Acute low back pain (ABP) is defined as an “acute muscular ligament strain and pain between the iliac crest and lower lumber spine that is not attributed to a medical condition,” (Xu, Bach, Orhede, 1996, p.132) and persists “less than six weeks” (Tulder, Koes & Bombardier, 2002, p.763). Although little is known about the risk factors for the transition from acute to chronic LBP…
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