Significant effect of weightbearing is simulated.
Weightbearing alters medial longitudinal arch and first TMT joint positions.
Peroneus Longus tendon actuation improves the first TMT joint sagittal plane subluxation and the intermetatarsal angle.
Peroneus Longus tendon actuation increases first metatarsal rotation.
Peroneus Longus tendon actuation does not reconstitute the medial arch.