توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Balance Recovery after an Unexpected Media–Lateral Gait Perturbation
نویسنده(ها): ، ،
اطلاعات انتشار: یازدهمین کنفرانس مهندسی پزشکی ایران، سال
تعداد صفحات: ۶
In this study we examined the recovery responses to sideways pushes to the right shoulder during walking. To examine a realistic situation the width of the walkway was restricted (boundary condition). Perturbations were applied randomly without previous knowledge of the subjects at either right or left single support phases of the gait. Perturbations were triggered by foot contact on a force plate mounted in the laboratory walkway. Planar displacement of the center of mass and rotational angles of the trunk in the frontal and transversal planes show that a) boundary conditions affected mainly the control of movement in the media–lateral direction, and b) gait phase influenced chiefly the rotational movement of the trunk in the transversal and frontal planes. The results indicate that foot–placement strategy was applied for balance recovery after perturbation.<\div>

۲Strategies Applied to Control Gait Initiation after Standing–up from a Seated Position
نویسنده(ها): ،
اطلاعات انتشار: یازدهمین کنفرانس مهندسی پزشکی ایران، سال
تعداد صفحات: ۶
In this study, we have investigated the combined task of sit–to–walk (STW) under different time constraints. STW can be viewed as gait initiation (GI) after\while rising from a seat (sit–to–stand: STS). Six healthy adults performed 100 STS and STW trials under different time constraints. Movements were initiated following a visual cue. Participants were instructed to change the final task from standing to walking or from walking to standing depending on a second visual cue which might be given after the first one. For all combined tasks including a GI component, it was observed that the
anticipatory postural adjustment, which is a characteristic of GI from standing posture, was present after seat–off with some modifications. Comparison of different combined tasks with elementary tasks of STS and GI showed that, STW was not performed merely as a successive combination of two elementary tasks of STS and GI. Rather, some terminal characteristics of STS and some initial characteristics of GI were merged together. The merging scheme was to a large extent individual–dependent.<\div>
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