Gait Ankle » History » Revision 3
Revision 2 (Bjarni Kristjánsson, 2012-01-19 16:01) → Revision 3/7 (Kristján Oddsson, 2012-01-19 16:16)
h1. Gait Ankle h2. Notes from Kristján. h3. Phases from the prespective of the ankle * Initial contact ** Neutral (90°), slight dorsiflexion. Preparing for response. * Loading response ** Plantar flexion (10°). Function: Shock response. * Mid stance ** Dorsiflexion (from 8° plantarflex to 5° dorsiflex). Function: Allow forward progression of tibia. * Terminal stance ** Heel rise (doriflexion up to 10°) * Pre-swing ** Plantar-flexion (20°). Function: Initiate knee flexion for swing. * <Missing> (I actually missed what the guy said here, if anyone has it please edit the file and add it.) ** Slight dorsiflexion in the ankle to prepare hitting the ground again. h1. Ankle design ideas * Flexible sole * Hinge joint motorized ** Possible second axis of swivel * Springs or elastic for "natural" shock absorption * Possibilities for more gait types than heel hell to toe roll