Influence of a New Backpack Design on Kinematics and Dynamics of Walking
The backpacks influence the posture of the walkers. The object of this study is to quantify the modifications of the posture but also the modifications during gait, in differs configurations load: (a) without backpack, (b) with a commercial backpack, and with a prototype of which it is possible to make move part of the load, (c) behind of the trunk and (d) in front of the trunk. To evaluate this new design, 13 subjects were asked to walk, in straight line at their natural walking speed. Kinematics and dynamics data were recorded by a Vicon optoelectronic system and 2 force platforms (Kistler). The results show that the forward load condition (d) allows the raising of the walker trunk. Consequently, the postural attitude of the walker is closer to normal walk attitude (without load). For the dynamic data, no significant difference was noted between the 3 conditions of walk with backpack.
KeywordsForce Platform Load Carriage Postural Attitude Trunk Inclination Good Comfort
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