To point my toes I have to straighten my whole leg (photo on left). To bend my ankle I have to bend my hip and knee (photo on right).
Problem #1: Two trips to the emergency room after bad falls were enough for me. My weak hip and knee flexors do not lift my leg high enough to clear my toes as I take a step. To make things worse my leg is mostly straight when I swing my leg to take a step so the extension synergy forces my toes to point (top left photo). Weakness and synergy produce foot drop which makes me stub my toes (photo on left). Solution #1: The brace holds my toes and ankle up as I walk. I faithfully wear my leg brace because it prevents falls.
Solution #2: My leg brace keeps my knee slightly bent (green line) when I take a step. I faithfully wear my leg brace because it defers the need for knee surgery.