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. Author manuscript; available in PMC: 2010 Jun 23.
Published in final edited form as: IEEE Int Conf Rehabil Robot. 2009 Jun 23;2009:638–644. doi: 10.1109/ICORR.2009.5209625

Table V.

impedance parameter for level ground walking from experimental tuning

Phase Knee Impedance Ankle Impedance
Speed km k Nm b N·s θk deg k Nm b N·s θk deg
h deg m deg m
0 5.1 2.5 0 8 3.0 0.04 −1
1 5.1 4.5 0.05 8 4.5 0.04 0
2 5.1 3.0 0.05 22 6.0 0.01 −18
3 5.1 0.1 0 65 0.4 0.05 0
4 5.1 0.2 0.04 40 0.7 0.03 0

Highlighted parameters vary from 3.4 km/h treadmill walking.