Otto Bock Freestyle Swim LP2-W2 Instructions For Use Manual page 18

Heel too hard
• Energy return feels low
Prosthetic foot too stiff
Symptoms
• Minimal rollover movement of the pros­
thetic foot at low walking speed (long
full ground contact)
Prosthetic foot too soft
Symptoms
• Clicking noise at the start of ground
contact.
• Very pronounced deformation of the
forefoot at high activity levels
5.1.4.1 Optimising the heel characteristics
The behaviour of the prosthetic foot at heel strike and during heel contact in
the mid-stance phase can be adapted with the placement of a heel wedge.
The heel wedge is attached with adhesive tape for testing. For definitive
assembly, it is glued to the prosthetic foot.
Fitting
1) Place the double-sided adhesive tape (included) on the underside of the
heel wedge.
2) Place the heel wedge on the base spring in the recommended position.
3) Optional: Shorten the heel wedge on the top if the heel strike is too
hard.
Definitive assembly
1) Remove the adhesive tape from the heel wedge. This can be done using
a cloth with acetone.
2) Roughen the contact surface on the prosthetic foot slightly using sand­
paper. Remove the dust after sanding.
3) Glue the heel wedge to the prosthetic foot with contact cement.
6 Use
CAUTION
Unlocking the ankle joint
Risk of injury due to movement in the ankle joint of the prosthetic foot
18
• Reduce the heel stiffness (shift or
remove heel wedge)
Possible solutions
• Select prosthetic foot in lower stiffness
Possible solutions
• Select prosthetic foot in higher stiff­
ness