Problem #1: 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). All this unwanted movement is exhausting.
Problem #2: Two trips to the emergency room after bad falls were enough for me. My weak hip and knee 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 because the extension synergy forces my toes to point. The photo on the left shows me stubbing my toes. Solution: I faithfully wear my leg brace because it prevents foot drop which prevents falls.
Solution: My leg brace keeps my knee slightly bent (see green line) when I take a step. I faithfully wear my leg brace because it defers the need for knee surgery.