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Catapult Running

Item #: FX6=0_B

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Suggested HCPCS Coding: L5999

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Catapult represents the most significant advancement in prosthetic running foot technology in decades. Now runners and sprinters can experience technology that advances energy return allowing them to run farther and faster, with less effort.
Integrating the revolutionary PowerSpring into the proven C-spring design, Catapult sets a new standard for running and sprinting prosthetic technology.


  • Optimized propulsion and stability
  • PowerSpring customization enhances comfort and performance
  • Water-resistant
  • Dual spring technology increases the amount of energy stored in the system and optimizes the timing of its release
  • Energy propulsion allows users to expend less energy in a more stable and balanced design
  • Male pyramid attachment facilitates the use of a single prosthetic socket and any alignment adjustments needed to accommodate progress and training


Activity Level K3, K4
Maximum Body Weight 365 lbs (166 kg)
Stiffness 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
~ Min. Clearance Height 241 mm (9 1/2")
Product Weight 17.99 oz (510 g)


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Instructions for Use - Catapult Running Foot

Instructions for Use: 647G1709 (EN, DE, FR)

Publish date: Mar 2, 2021

PDF Document (647G1709-all_INT-01-2102w.pdf | 856 KB)

FX6 Catapult Running Spec Sheet

Product Information: (EN)

Publish date: Mar 26, 2021

PDF Document (FX6 Catapult Running Spec Sheet.pdf | 148 KB)