Pediatric Impulse® Foot


As children develop a more mature gait that follows the normal progression of heel strike through toe off, they need a foot that offers more toe response and increased durability. Our pediatric Impulse foot uses the same Pathfinder® material with a carbon/nylon keel. This material combination provides energy return, dynamic response, and outstanding durability—three of the most important characteristics for active children in the second stage of gait development.

Note:  Current lead time one week.  Please contact customer service for delivery date.

Product Highlights:
  • Substantial Energy Return
  • Durable Pathfinder Composite Materials
  • Three Toe Resistances
Weight 155 g (.34 lb)*
Patient Weight Limit 132 lb (60 kg)**
Heel Height 13-17 cm: 1/4″ (6 mm)
18-22 cm: 3/8″ (10 mm)
Build Height***
3.68 cm for 1/4″ heel
WillowWood’s Pediatric Titanium Foot Pyramid was used to calculate build height.
Available Sizes 13 to 22 cm
Toe Resistance Low, Regular, High
Heel Insert Densities 13-14 cm: No Inserts
15-22 cm: Soft, Medium, Firm
Cosmesis Unisex, Lifelike in Buff, Tan or Medium Brown
Trial Period 30 days from date of patient fitting
U.S. Warranty 12 months from date of patient fitting
The use of WillowWood’s pediatric components with any manufacturer’s adult-sized components will void the warranty.

* Weight is based on size 16 cm foot.
** Body weight plus any loads normally or routinely carried cannot exceed this weight limit.

*** Build height measurements taken for a size 16 cm foot with WillowWood components. Measurements will vary if using non-WillowWood components.

To order a pediatric Impulse® Foot, please select the size, side, color, and toe resistance. All three heel inserts are included with every foot.

Pediatric Impulse Foot SAMPLE Part Number
Name Code PPI Pediatric Impulse Foot
Size of Foot 17 13 to 22 cm
Side of Foot L L = Left
R = Right
Foot Shell Color M B = Buff
M = Medium Brown
T = Tan
Toe Resistance 3 2 = Low Toe Resistance
3 = Regular Toe Resistance
4 = High Toe Resistance

Pediatric Impulse Foot Instructions

Fasteners & Torque
M8 x 28 mm Socket Head Capscrew 15 ft-lbs/20 Nm
M8 x 34 mm Socket Head Capscrew 15 ft-lbs/20 Nm
Related products:
Pediatric Titanium Foot Pyramid Adapter
Pediatric Aluminum Foot Pyramid Receiver
Pediatric Exoskeletal Laminating Core
Pediatric Impulse Exoskeletal Ankle Block
Pediatric Growth Kit
Pediatric Titanium Symes Nut

Find Your Liner Part Number

Enter an Alpha® Liner serial number and the corresponding part number will display.


Thank you for choosing Alpha Liners!