Hydraulic-ankle carbon foot pairing K3-K4 energy return with self-aligning plantarflexion.
Materials & Highlights
Slopes and stairs are where conventional carbon feet show their limits, and the StridePeak HX answers with a hydraulic ankle that self-aligns through 9 degrees of motion. Users descending ramps reach foot-flat sooner, knees stay flexed under control, and socket pressures stay closer to level-ground values — a meaningful comfort gain for high-mileage K3–K4 patients.
The carbon spring set is laminated unidirectional and woven plies tuned in eight categories, mated to a sealed hydraulic cylinder with independent plantar- and dorsiflexion damping screws. Build height is 174 mm, weight 815 g at 26 cm, and the system carries a 150 kg rating with an IP67 splash-resistance designation.
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