[article] 
inAnnals of physical and rehabilitation medicine > Vol. 51, n°3 (Avril 2008) . - pp.154-160

Titre :	Assessment of the Chignon® dynamic ankle-foot orthosis using instrumented gait analysis in hemiparetic adults
Type de document :	texte imprimé
Année de publication :	2008
Article en page(s) :	pp.154-160
Langues :	Français (fre)
Résumé :	Objective. - In the hemiplegic adult, gait is frequently perturbed by lack of ankle dorsiflexion at toe-off and may prompt prescription of an ankle-foot orthosis (AFO). Our objective was to evaluate the effect on gait of a dynamic AFO (the Chignon ®orthosis) in comparison with a prefabricated AFO (PAFO). Method. - Ten chronic hemiplegic patients performed a 10 m gait test and then underwent an instrumented treadmill gait test under three different sets of conditions (without an orthosis, with a PAFO and with a Chignon® orthosis). The energy cost was calculated by measuring the oxygen consumption during gait. Results. - The patients' free-walking speed was higher with the Chignon® orthosis (0.81 ± 0.25 ms-1) than without it (0.64 ± 0.25 ms-1; p < 0.001). The ankle's segmental kinematics were better with the Chignon® orthosis than without an orthosis, notably in terms of ankle position at heel strike (- 0.8° ± 4.6 versus - 7.9° ± 8.3; p = 0.009) and ankle dorsiflexion at toe-off (1.7° ± 4.6 versus - 5.5° ± 7.2; p = 0.006). External mechanical work was lower with both the PAFO (0.61 ± 0.2 J kg-1 m-1) and the Chignon® orthosis (0.61 ± 0.23 J kg-1 m-1), relative to gait without an orthosis (0.73 ± 0.25 J kg-1 m-1; p = 0.003). Total mechanical work was also lower with the PAFO (0.9 ± 0.25 J kg-1 m-1) and the Chignon® orthosis (0.87 ± 0.25 J kg-1 m-1), relative to gait without an orthosis (1
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[article] Assessment of the Chignon® dynamic ankle-foot orthosis using instrumented gait analysis in hemiparetic adults [texte imprimé] . - 2008 . - pp.154-160.
Langues : Français (fre)
in Annals of physical and rehabilitation medicine > Vol. 51, n°3 (Avril 2008) . - pp.154-160

Résumé :

Objective. - In the hemiplegic adult, gait is frequently perturbed by lack of ankle dorsiflexion at toe-off and may prompt prescription of an ankle-foot orthosis (AFO). Our objective was to evaluate the effect on gait of a dynamic AFO (the Chignon ®orthosis) in comparison with a prefabricated AFO (PAFO). Method. - Ten chronic hemiplegic patients performed a 10 m gait test and then underwent an instrumented treadmill gait test under three different sets of conditions (without an orthosis, with a PAFO and with a Chignon® orthosis). The energy cost was calculated by measuring the oxygen consumption during gait. Results. - The patients' free-walking speed was higher with the Chignon® orthosis (0.81 ± 0.25 ms-1) than without it (0.64 ± 0.25 ms-1; p < 0.001). The ankle's segmental kinematics were better with the Chignon® orthosis than without an orthosis, notably in terms of ankle position at heel strike (- 0.8° ± 4.6 versus - 7.9° ± 8.3; p = 0.009) and ankle dorsiflexion at toe-off (1.7° ± 4.6 versus - 5.5° ± 7.2; p = 0.006). External mechanical work was lower with both the PAFO (0.61 ± 0.2 J kg-1 m-1) and the Chignon® orthosis (0.61 ± 0.23 J kg-1 m-1), relative to gait without an orthosis (0.73 ± 0.25 J kg-1 m-1; p = 0.003). Total mechanical work was also lower with the PAFO (0.9 ± 0.25 J kg-1 m-1) and the Chignon® orthosis (0.87 ± 0.25 J kg-1 m-1), relative to gait without an orthosis (1

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