Identification and characterisation of heel strike transient.
This study set out to ascertain the incidence of a heel strike transient (HST) and to verify whether modifications of muscle activation time could be correlated with the presence and the characteristic of a HST. Lower limb kinematics, kinetics and surface electromyography (SEMG) of normal subjects were examined during barefoot walking. A short-lived sharp HST was present in 76% of the trials while a smooth HST, of longer duration was seen in 13.3% of the trials. The transient phenomenon was absent in the remaining 10.7% of trials. The SEMG showed that alteration in the activation timing of muscles correlated with the presence of a HST.
Verdini
Federica
F
Dipartimento di Ingegneria Informatica, Gestionale e dell'Automazione, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy. fedi@diiga.univpm.it
Marcucci
M
M
Benedetti
M G
MG
Leo
T
T
D000328:Adult; D005260:Female; D006365:Heel / Q000502:physiology*; D006801:Humans; D008297:Male; D016138:Walking / Q000502:physiology*