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15 mai 2023
- handle: 10670/1.p59w2a
- doi: 10.1080/09638288.2018.1493158
Attribution - Pas d’Utilisation Commerciale 4.0 International (CC BY-NC 4.0) , https://creativecommons.org/licenses/by-nc/4.0/deed.fr
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Yosra Cherni et al., « Lower limb extension is improved in fast walking condition in children who walk in crouch gait », Papyrus : le dépôt institutionnel de l'Université de Montréal, ID : 10.1080/09638288.2018.1493158
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Background and purpose: The strategies for walking fast have never been reported in children with cerebral palsy who walk in crouch gait. This study aimed to assess to what extent children who walk in crouch gait are able to increase their gait speed and to report the corresponding three-dimensional kinematic adaptations. Methods: Eleven children and adolescents (aged between 7 and 17 years) with bilateral cerebral palsy, who walk in crouch gait, were asked to walk at their self-selected comfortable speed and then as fast as possible without running. The spatio-temporal and kinematic parameters, as well as the center of mass displacements were compared between walking conditions. Results: Children were able to walk 30% faster than their comfortable speed (+0.30 m/s, p = 0.000) by increasing both cadence (+21 step/min, p = 0.000) and step length (+0.05 m, p = 0.001). During the stance phase, pelvis anteversion (+3 Deg, p = 0.010), hip flexion-extension range of motion (+4 Deg, p = 0.002), and knee extension (+5 Deg, p = 0.000) were increased in fast walking. During fast walking, the center of mass showed larger range of vertical displacements (p < 0.05). Conclusions: Children with cerebral palsy who walk in crouch gait increased their walking speed by adopting a less crouched posture. Compared to comfortable walking speed condition, fast walking could be beneficial in rehabilitation to solicit higher lower limbs range of motion.