The foot, calf, hip, and trunk work as a sequence when you step and propel—not as isolated parts.
The foot, ankle, hip, trunk, and arms work as a sequence whenever you stand, step, walk, or carry. Paying attention to the ground can clarify the whole task without forcing the foot into one perfect shape.
Return the idea to walking, reaching, stepping, or carrying. A useful input should eventually reconnect to the daily task instead of remaining an isolated drill.
Try this today
Make the idea practical.
On one walk, pay attention to how the back foot leaves the ground rather than only how the front foot lands.