Category: Foot Function

Archies Thongs

By admin,

In Australia “thongs” are what the rest of the world call “flip flops”. These types of footwear are an important part of the lifestyle there. The Archies Thongs are flip flops that have an arch built into them, so they are proving popular as an alternative and as an adjunct to foot orthotic therapy.

Archies Thongs

The amount of support that they have is roughly the same as a pre-fabricated foot orthotic, so there is no reason why they can not be used as an alternative to foot orthotics when indicated. The Archies Thongs come in multiple colours and multiples sizes.

archies thongs

The Abductory Twist

By admin,

The abductory twist is an observation made during a gait analysis in which there is a sudden abduction as the heel leaves the ground when walking:

It is generally considered to be of no real clinical significance and is just an observation that is made. There are plenty of questions in forums about it, but it is often misunderstood. It is related to “overpronation”, so its management and clinical significance are related to the issues surrounding that.

Short Foot Exercise

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The Short Foot Exercise is something that is often promoted as a cure all for so many foot ailments. Its not. It is a useful tool.

The exercise is best described in this video:

The exercise is useful for what it is designed for: to strengthen the intrinsic muscles in the foot. That is all. Nothing more and nothing less. It does not cure all the ails the foot, despite the claims by many of it supporters. It supposed to “cure” “overpronation” – it dosen’t. The evidence is clear on that. I can be useful in plantar fasciitis.

Supination Resistance

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This is a concept that has been getting increased attention in recent years in clinical practice. It is a concept and clinical test of determining how hard it is to supinate the foot based on the assumption that the harder the force is, then if a foot orthotic is needed for something like, overpronation, then more force needs to come from the foot orthotic; so a rigid firm and inverted type foot orthotic is needed. Similarity if the force is low, then not much force is needed from the foot orthotic, so a soft flexible foot orthotic is indicated.

There has been some research done on it, but not a lot. This is probably limiting its more widespread use in clinical practice. The test for supination resistance does correlate quite well with some pathologies and not others.

This video on supination resistance from PodChatLive was a discussion with all the key researchers and theorists on the topic:

The Windlass Mechanism

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The windlass mechanism is an extremely important function in the foot. It is the foot’s own natural arch supporting mechanism, so any inhibition of this mechanism is going to affect the integrity of the foot and it biomechanics. The plantar fascia or plantar aponeurosis attaches to the bottom of the heel and the base of the toes, so spans the arch of the foot to support it. When the heel lifts off the ground the toes bend relative to the metatarsals, so they tighten this plantar fascia, giving stability to the arch and foot during the propulsive phase of gait.

If there is any issues that affect the integrity of the windlass, then there are often consequences. The arch of the foot will not be able to resist the forces that are applied to it during propulsion and will collapse. This can result in a range of different pathologies such as plantar fasciitis. Also while not being able to support the arch will also contribute to any overpronation and the consequences of that.

If there is any sort of dysfunction of the windlass there are a number of different types of interventions that can be used such as lowering the force to get it established or to get the windlass to initiate or start working earlier.