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. Author manuscript; available in PMC: 2019 Nov 1.
Published in final edited form as: J Pain. 2018 Jul 3;19(11):1352–1365. doi: 10.1016/j.jpain.2018.05.012

Figure 1: Experimental design.

Figure 1:

Participants viewed 20 s videos showing back-straining or neutral (non-back-straining) exercises in a pseudorandomized order. After each video, they rated fearfulness and expected pain from performing the exercise on Visual Analogue Scales. There were 8 videos (spread over 2 scan runs) before, and 8 videos after SMT. At the end of each scan session, the participants were asked to perform the observed back-straining exercises, which had been established to be painful at the initial training visit for all chronic Low-Back Pain patients.