Chapitre 5. Discussion et conclusion
5.6 Limites de l’étude
Une limite de l’étude est la petite taille d’échantillon des deux groupes. Malgré l’hétérogénéité de nos échantillons, un comportement navigationnel de base et une coordination temporelle similaire ont tout de même été démontrés entre les deux groupes. De plus, les résultats de cette étude sont applicables seulement dans des environnements prédictifs. Des tâches locomotrices plus complexes avec des obstacles en mouvement ou des interactions avec d’autres personnes (ex. : dans un centre d’achat) pourraient impliquer des stratégies davantage réactives. Afin de mieux comprendre l’effet de l’expérience sur le comportement visuo-locomoteur, un plus grand nombre de sujets ayant le même nombre d’années d’expérience seraient requis.
5.7 Conclusions
Cette étude fournit de nouvelles connaissances sur le comportement visuo-locomoteur chez les usagers expérimentés en fauteuil roulant manuel et motorisé. Indépendamment
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du type de fauteuil roulant utilisé, les usagers adoptent des stratégies navigationnelles et une coordination temporelle du corps et du fauteuil roulant similaires lors de changement de direction et de contournement d’obstacle. Le comportement visuel semble dépendre principalement des exigences environnementales. Combiné avec les résultats d’une étude précédente chez les usagers novices en fauteuil roulant manuel ainsi qu’à la marche bipède chez des sujets sains, les résultats de la présente étude démontrent une généralisation dans les stratégies de coordination visuo-locomotrice entre différents modes de locomotion et ce, peu importe le nombre d’années d’expérience en fauteuil roulant.
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65 Annexes
0 = absent 1 = altered 2 = normal NT = not testable 0 = absent 1 = altered 2 = normal NT = not testable C2 C3 C4 S3 S2 L5S1 L5 L4 L3 L2 L1 T12 T11 T10 T9 T8 T7 T6 T5 T4 T3 C4 C3 C2 T2 C5 T1 C6 Palm Dorsum C6C8 C7 0 = absent 1 = altered 2 = normal NT = not testable Dorsum C6 C8 C7 S4-5
•
Key Sensory Points 0 = absent 1 = altered 2 = normal NT = not testable 0 = absent 1 = altered 2 = normal NT = not testable C2 C3 C4 S3 S2 L5S1 L5 L4 L3 L2 L1 T12 T11 T10 T9 T8 T7 T6 T5 T4 T3 C4 C3 C2 T2 C5 T1 C6 Palm Dorsum C6C8 C7 0 = absent 1 = altered 2 = normal NT = not testable Dorsum C6 C8 C7 S4-5•
Key Sensory Points C5 C6 C7 C8 T1 L2 L3 L4 L5 S1 MOTOR KEY MUSCLES SENSORYKEY SENSORY POINTS