FROM MY PT SCHOOL NOTES · FABIO · CHAPTER 13
How Does the Foot Balance Stability and Mobility?
The ankle and foot support body weight, adapt to the surface and help produce propulsion.
Know the linked joints
The source separates hindfoot, midfoot and forefoot. The talocrural, subtalar and smaller foot joints contribute different motions. Talocrural dorsiflexion and plantarflexion are not the entire story.
The lecture describes pronation and supination as multiplanar patterns rather than single-axis actions.
Describe loading and arch support
Arches, plantar fascia, ligaments and intrinsic and extrinsic muscles all influence load sharing. The windlass concept links toe extension with plantar fascia tension and changing arch mechanics.
An observed low or high arch is not, by itself, a diagnosis. Consider footwear, surface, activity and the person’s symptoms.
Apply it to walking or stepping
The foot needs to accept load, accommodate the surface, and later provide a stable platform for push-off. The demands vary with speed and task.
Ask whether the issue is limited joint motion, force tolerance, balance, footwear or something else before assuming the source of a complaint.
Check your reasoning: Is ankle pronation simply talocrural dorsiflexion?
No. The lecture uses pronation to describe a multiplanar foot and ankle pattern involving more than one joint.
Try the mechanics on a real task
Example: A person has limited ankle dorsiflexion during a squat and compensates by changing foot orientation and moving through other joints.
Work through the reasoning
Answer: The observed movement is a regional strategy. Examine talocrural range in appropriate positions and consider subtalar, midfoot, hip and task contributions; the shape of the foot alone cannot establish the reason.
Common trap: Calling all compensatory foot motion ‘overpronation’ without defining what was observed. Remember: Describe the actual joint and task before attributing a problem.
Based on my original FABIO regional source lecture: Ankle and Foot.pdf. Class concepts are paraphrased without publisher figures. This is a student learning lesson, not an independent clinical diagnosis.
