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. Author manuscript; available in PMC: 2011 May 28.
Published in final edited form as: J Biomech. 2010 Feb 24;43(8):1476–1482. doi: 10.1016/j.jbiomech.2010.01.037

Figure 3.

Figure 3

Typical force-span hysteresis curve sampled from a normal adult subject with graphic insert showing span-time (black line) and force-time (dashed line) plots. Point A: preload condition of the OroSTIFF device on a subject's face; B: onset of interangle stretch phase ; C: peak interangle stretch; the recoil phase (D–E) during which stiffness is calculated (ΔForce/ΔSpan). Regions from A–E and just after C reflect bending (elasticity) of the OroSTIFF device without change in S-DVRT position output.