Answer :
Final answer:
A carbon AFO limiting plantarflexion modifies the efficiency and timing of foot rockers during the gait, potentially altering shock absorption and leading to increased stress on joints due to changes in the natural gait mechanism.
Explanation:
The use of a carbon Ankle-Foot Orthosis (AFO) that limits plantarflexion impacts the functionality of foot rockers during gait. In normal gait, the foot progresses through several rockers - the heel, ankle, and forefoot rockers, which facilitate smooth transitions of weight and movement from heel strike to toe-off. Limiting plantarflexion can affect the natural gait mechanism, specifically by altering the timing and efficiency of these rockers, potentially leading to increased stress on the joints and changes in shock absorption capabilities of the foot.
Furthermore, during running, where the forces exerted on the foot can reach up to 2.5 times body weight, the importance of efficient energy absorption and distribution through the foot's arches and rockers becomes more pronounced. An AFO restricting plantarflexion may require the wearer to compensate with altered gait patterns, which may affect the overall shock-absorbing ability of the foot and lower limb, potentially leading to increased stress on joints and altered distribution of body weight.
