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Fig. 9. Swing direction and temporal distribution of short steps. Swing direction
(AEP relative to PEP) is defined in four groups (f, forward; b, backward; o,
outward; i, inward; coordinate system is shown in the inset figure below).
Temporal distribution is defined according to the five sections EFL to HL (see
Fig. 1 for abbreviations);
short steps caused by the levator or TOT-reflex and by clinging to the second
footbridge have not been taken into account.