User guide

Charnwood Dynamics Ltd. Coda cx1 User Guide - Gait Analysis II - 1
CX1 USER GUIDE - COMPLETE.doc 26/04/04 73/162
Segment Data Types and Channels
The data channels listed below are calculated automatically and become available for
plotting when the Marker data and Setup configuration are appropriate. The configuration
may allow calculation of Pelvis data alone, or Pelvis data and data for one or both Legs.
Segment Reference Point (3D) [mm] X Y Z
0 "Sacrum"
1 "L.Asis"
2 "R.Asis"
3 "L.HipCentre" Internal joint centre of the left Hip
4 "R.HipCentre" Internal joint centre of the right Hip
5 "L.MedKnee"
6 "L.LatKnee"
7 "L.KneeCentre" Internal joint centre of the left Knee
8 "L.MedAnkle"
9 "L.LatAnkle"
10 "L.AnkleCentre" Internal joint centre of the left Ankle
11 "L.Heel"
12 "L.Toe"
13 "R.MedKnee"
14 "R.LatKnee"
15 "R.KneeCentre" Internal joint centre of the right Knee
16 "R.MedAnkle"
17 "R.LatAnkle"
18 "R.AnkleCentre" Internal joint centre of the right Ankle
19 "R.Heel"
20 "R.Toe"
Segment Rotation (3D) [deg] X Y Z
0 "L.Pelvis" : "Obliquity", "Tilt", "Rotation"
1 "R.Pelvis" : "Obliquity", "Tilt", "Rotation"
2 "L.Hip" : "Ad/Abduction", "Flexion/Extension", "Rotation"
3 "L.Knee" : "Varus/Valgus", "Flexion/Extension", "Rotation"
4 "L.Ankle" : "Pro/Supination", "Dorsi/Plantarflexion", "Alignment"
5 "L.Foot" : "Progression", "Pitch", "Obliquity"
6 "R.Hip" : "Ad/Abduction", "Flexion/Extension", "Rotation"
7 "R.Knee" : "Varus/Valgus", "Flexion/Extension", "Rotation"
8 "R.Ankle" : "Pro/Supination", "Dorsi/Plantarflexion", "Alignment"
9 "R.Foot" : "Obliquity", "Pitch", "Progression"
‘L.Pelvis’ and ‘R.Pelvis’ rotations are the same, except for the sign of the Obliquity
and Rotation components.
3D Joint Moment & Power (3D) [Nm/kg] [W/kg] X Y Z
0 "L.Hip" : "Adduction", "Flexion", "Rotation"
1 "L.Knee" : "Varus", "Flexion", "Rotation"
2 "L.Ankle" : "Supination", "Plantarflexion", "Alignment"
3 "R.Hip" : "Adduction", "Flexion", "Rotation"
4 "R.Knee" : "Varus", "Flexion", "Rotation"
5 "R.Ankle" : "Supination", "Plantarflexion", "Alignment"
3D Joint Power Sum [W/kg]
0 "L.Hip"
1 "L.Knee"
2 "L.Ankle"
3 "R.Hip"
4 "R.Knee"
5 "R.Ankle"