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Fig. 15. Forward velocity profiles for the wingtip (A) and wrist markers (B) in a
global coordinate system that has been rotated in the Zg
axis to align the X-axis component to the bearing velocity vector
and, thus, the forward velocity represents the marker velocity in the
direction of flight. This rotation maintains the elevation and bank
orientation of the body. The width of the traces represents the means ±
95% CI (confidence interval). Shaded bars correspond to downstroke periods.
In, inside of the wing; out, outside of the wing; out–in, difference
between outside and inside wing.