Case of the week - 15/3/99

from The Hong Kong Polytechnic University & Tuen Mun Child Assessment Centre, Hong Kong

5 yo child (15.5 kg) with left hemiplegia. 

Temporal-spatial measures
Measured Predicted*
Cadence 136 st/min 86%
StrideLength 0.72 m 89%
Velocity 0.82 m/s 80%
*based on lower-limb length from ASIS to medial malleolus of 51 cm
 
  Right Left
Step Length 0.40 m 0.31 m
Stance Duration 60% cycle 58% cycle
Double Support 9% cycle 9% cycle

Kinematics summary
  Right Normal Left
Max dorsiflexion (deg.) 20 20 -10
Max. plantarflexion (deg.) -18 -18 -18
Max. pf velocity (deg./s) -400 200 -130
Max. stance flexion (deg.) 29 15 27.6
Max. swing flexion (deg.) .61 70 61
Max. knee extension (deg.) -1.4 0 -7.7
Max. hip flexion (deg.) 39 40 44.6
Max. hip extension (deg.) -14.6 -15 -17.7

Kinetics summary
Right Normal Left
A2 Push-off Power (W) 24 18 3.6
Stance knee moment (Nm) 5 extensor 5 extensor 6 flexor
Hip pull-off (W) 20 20 21

Movies (PC users get the QuickTime plug-ins here - right mouse-click "Save Link as..." - Windows 95/NT and 3.1)
 
Sagittal
 Frontal
right side front view
left side rear  view

3D Gait Analysis results (Vicon 370 Version 2.6, full-body marker set, VCM kinematics & kinetics)

Kinematics (both sides)
Kinetics (both sides)

 ... points for discussion:

What people said...

Case prepared by Dr. Chris Kirtley & referred by Beverly Yiu

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Maintained by DDr. Chris Kirtley, Andreas Kranzl
Last modified on Wednesday, 9-Feb. 1999.

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