The present study compared walking and running constrained to one speed (2.
24 m/s) and the average of preferred walking and running stride frequency.
Lower extremity coordination was assessed, using phase plots, relative phas
e and variability analysis. Angular excursions, phase plots, patterns of re
lative phase and variability analysis illustrated similar segmental and joi
nt coordination patterns for walking and running. Under the speed and strid
e frequency constraints, we observed topological similarity in coordination
patterns between the thigh and leg in walking and running, which co-existe
d with functional differences throughout the gait cycle, especially in the
transition from stance to swing phase. (C) 1999 Elsevier Science B.V. All r
ights reserved.