Article

The comparison of gait imitated by healthy subjects with real pathological CP
gaits is expected to contribute to a better distinction between primary
deviations directly induced by neurological troubles and secondary compensatory
deviations in relation with the biomechanics of the pathological gait. However,
the ability of healthy subjects for imitating typical CP gaits such as "jump" or
"crouch" gaits still remains to be determined. The present study proposes to
investigate healthy subjects imitating these typical CP gait patterns. 10 healthy
adult subjects performed three types of gait: one "normal" and two imitated
"jump" and "crouch" gaits. Kinematics and kinetics of the hip, knee and ankle
were computed in the sagittal plane. Rectified normalized EMG was also analysed.
Our data were compared with reference data.
For the statistical analysis, the
coefficient of multicorrelation has been used. It has been demonstrated that
healthy subjects were able to voluntarily modify their gait pattern with a high
level of intra-session and inter-subject reproducibility as quantified by a CMC
values higher than 0.76 for all parameters.
The comparison with literature
reference data showed that healthy subjects not could perfectly reproduce a CP
gait, however could only simulate the main characteristics of "crouch" and "jump"
gaits pattern. As a perspective, pathological gaits imitated by healthy subjects
could be used as valuable additional material to analyse the relationship between
a voluntarily modified posture and the altered muscle activation to explore a new
paradigm on pathological gait pattern analysis and musculoskeletal modelling.
CI - Copyright (c) 2013 Elsevier B.V. All rights reserved.

Langue : ANGLAIS