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Identification and characterisation of heel strike transient
VERDINI F; MARCUCCI M; BENEDETTI MG; LEO T
GAIT POSTURE , 2006, vol. 24, n° 1, p. 77-84 Doc n°: 125311 Localisation : Documentation IRR Descripteurs : DF22 - EXPLORATION EXAMENS BILANS - MARCHE, DE82 - EXPLORATION EXAMENS BILANS - PIED 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. Langue : ANGLAIS |
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