Today I had the pleasure of dropping in at the Sanford Running Injury & Performance lab and The National Institute for Athletic Health & Performance in Sioux Falls, South Dakota. Each of these places offer unique equipment and are heading some great research involving individual assessment through gait analysis and fatigue related stability issues.
At the running lab they had a force plate treadmill with Zebris software. What this allowed them to do was match slow motion video analysis with an individuals foot strike. Along with this they would hook up EMG to get a look at specific firing patterns up the chain. Take away message:
* The individual may display similar areas of stiffness and/or firing patterns but treatment is different based on the way in which this stiffness occurs. This is based off roll off patterns in the foot, heel motion, and foot structure.
* Single leg stance is still one of the greatest assessments for stability. But with this tool you can measure the parameter in which your center of gravity is displaced. This with EMG can show the degree in which you compensate and with which specific muscles your relying on.
* Many people strike hard on the outside of the heel and almost immediate go to big toe after a hard pronation.
Overall like you would assume, many of these people were stiff anteriorly and externally rotated.
These guys had a fellowship with Gary Gray and use some very integrated corrective strategies as you would guess with Gray.
At the NIAHP, they have easily the best environmental chamber in the US. Here they have done wonders with hydration study and stability.
* Almost everyone losses sweat at different rates. With that, what is lost (different electrolytes) varies quiet a bit person to person. People perform at a substantially higher rate when they replace what is really needed and not as much of what is not.
* After fatigued, athletes showed highest differences in stability in the frontal plane when landing, and in step-downs.
* 50 % of athletes are in a dehydrated state throughout the day. (DRINK SOME WATER!)
A great experience overall. Once again these are just tools. You can come to the same conclusions with different means. These tools however provide a great deal of information allowing you to obtain results with the ability to compare with computed numbers. I see these sort of tools as a use em' if you have access sort of thing.
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