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Fig. 5. Time series of measured strain (solid lines) from sonomicrometry and
predicted strain (open circles) from midline curvature for the anterior (blue)
and posterior (red) positions. Vertical dashed lines represent sequential
video frames shown in Fig. 1
for a weaker response (A) and a stronger response (B). Sonometric crystals are
located on the concave side of the bend for each response and, thus, show
muscle shortening.