The Foot Posture Index

Measurements taken of the foot as part of a biomechanical assessment have been shown to be notoriously unreliable and not that repeatable. When the initial studies started to come out showing that, I wanted to disagree with them as “I” was reliable. That was until I became a participant in these studies and realised just how unreliable I was.

When it comes to determining the posture or alignment of the foot (for whatever reason you might want to do that!) what do you measure. The Calcaneal angle? The arch height? The transverse plane position of the midfoot? Whichever one you choose, you may end up with a ‘normal’ or ‘abnormal conclusion.

For the above to problems, Tony Redmond developed the Foot Posture Index. The index is based on observations and is based on a number of observations. The FPI has been shown to be reliable.

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