Gait Phases

This element determines gait phases based on events.

Input Events

name	Default	use
foot strike	RHS, LHS	required
foot off	RTO, LTO	required
foot flat	RG, LG	optional

Requirements

• Only one or none foot flat phase inside a support phase (defined by foot strike and foot off of the same side) is allowed.

• If one foot is placed non flat to the ground and the foot of the other side is in swing phase than it is assumed that the forefoot is place to the ground. In other words the situation that only one back foot strikes the floor during the foot of the other side is in swing phase is not modelled.

Comments

Determined Phases

Phase name	Description
RStep	A right step starts with the right foot strike event (RHS) and ends with the left foot strike event (LHS). Attention: Wenn der erste im Trial auftretende Event ein LHS event ist, dann wird von Position 0 bis zu diesem Event eine RStep Phase gesetzt.
LStep	A left step starts with the left foot strike event (LHS) and ends with the right foot strike event (RHS).
RStride	Phase started with the right foot strike and ending with the following right foot strike.
LStride	Phase started with the left foot strike and ending with the following left foot strike.
RSwing	Phase beginning at foot off event (RTO) and ending at foot strike (RHS).
LSwing	Phase beginning at foot off event (LTO) and ending at foot strike (LHS).
SingleSupport	RSupport XOR LSupport: Phase defined as only RSupport or only LSupport.
RInitialDoubleSupport	RHS to LTO
LInitialDoubleSupport	LHS to RTO
RTerminalDoubleSupport	LHS to RTO
LTerminalDoubleSupport	RHS to LTO
RPostFootFlat	If the RFootFlat phase is inside the RSupport phase then an RPostFootFlat phase is defined beginning at the end of the RFootFlat and ending ant the end of the RSupport phase.
LPostFootFlat	If the LFootFlat phase is inside the LSupport phase then an LPostFootFlat phase is defined beginning at the end of the LFootFlat and ending ant the end of the LSupport phase.
RPreFootFlat	Phase starting at the left foot strike and ending at the beginning of the foot flat phase (RG event) of the same side.
LPreFootFlat	Phase starting at right foot strike and ending at the beginning of the foot float phase (LG event) of the same side.
RFootFlat	Right foot flat on the floor defined by the foot flat events (RG) only.
LFootFlat	Left foot flat on the floor defined by the foot flat events (LG) only.
RFootFlatOnly	SingleSupport & RFootFlat
LFootFlatOnly	SingleSupport & LFootFlat
RSupport	Phase beginning at the right foot strike and ending with the right foot off event.
DoubleSupport	Phase defined by foot of left and right side
BothFeetFlat	Phase defined as both feet flat on the floor: RFootFloat & LFootFlat.
LSupport	Phase beginning at the left foot strike and ending with the left foot off event.
RForefoot	SingleSupport & RSupport: only the right forefoot strikes the floor, the left foot is in swing phase.
LForefoot	SingleSupport & LSupport: only the left forefoot strikes the floor, the right foot is in swing phase.
RForefootOnly	RForefoot !& RFootFlat
LForefootOnly	LForefoot !& LFootFlat

Attributes

Attribute	Description	Default	Required
name	Attributes name, not used.		Yes
RightSideFootStrikeEventName	name of  right side foot strike event	RHS	No
LeftSideFootStrikeEventName	name of left side foot strike event	LHS	No
RightSideFootOffEventName	name of right side foot off event	RTO	No
LeftSideFootOffEventName	name of left side foot off event	LTO	No
RFootFlatEventTypeName	name of right side foot flat event	RG	No
LFootFlatEventTypeName	left foot flat event. The time between the first and the last foot flat event inside an support phase is interpreded as the foot is flat on the floor.	LG	No
ignoreStridesWithMissingFootOffEvent	If set to true, strides are removed, if no or more then one corresponding (between start and end of the stride) foot off event exists.	false	No

Examples

<GaitPhases name="ABC"/>