The Kinetic Chain Causing Plantar Fascitis and IT Band Syndrome
Last week I discussed how a limitation in the motion of your first toe or ankle can lead to Achilles tendonitis or shin splints. Several other running injuries can start at the foot.
When we run, the foot must become “flat” (pronate) as it hits the ground. This allows for proper shock absorption and prevents injury. It is a misconception that flat-footed people are more prone to injury while running. What scientific evidence has demonstrated is that the foot must be flat for a split second while running and those with a rigid foot (supinators) actually have a higher incidence of injury because of poor shock absorption.
However, scientists have also discovered that runners whose foot stays flat TOO LONG (pronate too long) get problems at their knee, hip, back and opposite shoulder. This is because when the foot goes flat the knee must turn in. (try it by standing and make you foot go flat). If your foot stays like this too long then you can develop pain on the outside of your knee called (IT band syndrome). Similarly it stresses the plantar fascia because of the prolonged stretch on the foot.
In order to address this problem one first needs to look at your footwear. Different feet need different types of shoes. Supinators need a cuishoned, mobile shoe while those with flat feet need a rigid, motion control shoe. In addition, those running extra miles may need to change shoes regularly or even invest in a pair of orthotics to decrease shock absorption.
Finally, those who pronate too long usually need to work on: stability of their ankle; 1 leg agility (dot drill anyone); and hip strength on that side. A weak ankle, hip or back can cause a person to shorten their stride and land harder on their leg, hence creating a pronation timing problem.
So, if you’ve been out pounding the pavement and have been noticing some foot pain in the morning or some knee pain consider getting your footwear checked and looking at some ankle and hip strengthening to keep you running.
WOD
10 Sumo Deadlift Highpulls (men 95/wmn 65)
10 Ring Dips 6 rounds
100 m Sprint
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