7 Fitting Advice
934331 for snubber replacement
Symptoms
•
Sinking at heel strike
•
Foot slap
•
Rapid transition from the heel
strike through stance phase
•
Difficulty controlling heel
action (e.g. foot jars into mid-
stance)
•
Foot feels too rigid
•
Drop-off in mid-late stance
•
Feels like walking downhill
•
Difficulty walking over the
forefoot
•
Feels like walking uphill
Note: Bilateral users may require stiffer snubbers than unilateral users. Trans-femoral users may
require a softer plantarflexion action than trans-tibial users.
Ankle ball:
primary
plantarflexion
control
15°
Max
Cause
Solution
Heel too soft
a.
b. Fit a harder ankle ball
Heel too hard
a.
b. Fit a softer ankle ball
Forefoot too
a.
soft
b. Fit a harder snubber
Forefoot too
a.
hard
b. Fit a softer snubber
Snubber:
primary
dorsiflexion
control
7
Confirm A–P alignment and heel
height accommodation
Confirm A–P alignment and heel
height accommodation
Confirm A–P alignment and heel
height accommodation
Confirm A–P alignment and heel
height accommodation
10°
Max
938224/5-0819