Lunging

Overview

Metric	Data Type	Description
Initiation	Int	the start of the lunge
Front Foot Contact	Int	when the front foot contacts the ground
Peak Knee Flexion	Int	the instant of maximum knee flexion
Front Foot Lift	Int	when the front foot leaves the ground
Termination	Int	the end of the movement

Phase	Stage	Start	End	Event or Phase
Preparation	Step Forward	Initiation	Front Foot Contact	Phase
Loading	Descent	Front Foot Contact	Peak Knee Flexion	Phase
Loading	Ascent	Peak Knee Flexion	Front Foot Lift	Phase
Recovery	Step Back	Front Foot Lift	Termination	Phase

Metric	Data Type	Units	Description
Step Length	Float	meters	Distance between feet at front foot contact
Knee Flexion	Float	degrees	Maximum knee flexion of front leg
Hip Flexion	Float	degrees	Maximum hip flexion of front leg
Ankle Dorsiflexion	Float	degrees	Maximum ankle dorsiflexion of front leg
Trunk Angle	Float	degrees	Angle of trunk relative to vertical
Knee Valgus	Float	degrees	Maximum knee valgus angle
Hip Adduction	Float	degrees	Maximum hip adduction angle
Ground Reaction Force	Float	N	Maximum ground reaction force
Time to Peak Force	Float	seconds	Time from contact to peak ground reaction force
Loading Rate	Float	N/s	Rate of force development
Step Width	Float	meters	Lateral distance between feet
Step Height	Float	meters	Height of front foot during step forward
Movement Time	Float	seconds	Total duration of the lunge