We describe a novel method to encourage children to weight-bear after frame surgery using a whoopee cushion; the objective of this study is to assess the amount of force taken though a limb using this method. The amount force is required to activate the whoopee cushion is measured when a subject takes weight though a whoopee cushion on a force plate. The speed of the foot in vertical and horizontal planes is assessed with motion analysis to correlate this to the activation of the cushion and is assessed under different conditions, and with different whoopee cushionsPurpose
Design/participants