Last Saturday, I visited one of the running-specialty stores in Bonifacio High Street, Taguig to canvass for a running shoe that would fit me and also to know more about this kind of shoe that I have seen from their website and some billboards in EDSA. At the same time, I was able to have my gait analyzed and also get my foot type.
The method for gait analysis is just simple. First they analyzed my foot type using some kind of instrument (called 'podoscope') that creates a thermal-like image of your feet after stepping on it for a few seconds. Mine has a normal arch, much like the image shown in the left. I was glad that I'm not flat-footed, since I've heard that flat-footed runners are more prone to injuries (I don't know if it is really proven), and those feet with normal to high arches have a higher chance of running faster (oh really? time to prove it!).
Next step was the gait analysis proper where I did a barefoot run on their treadmill at a speed of 9 kph, with a video cam a meter away from the treadmill recording my movement as I run (yeah, I noticed the video cam's location before I had my gait analyzed). The normal pronation should be 180 degrees and mine was just 180.7 degrees. It relieved me upon knowing that I still have a normal gait, with only a 0.7 degree of supination or pronation either way, I forgot what was the term that the sales assistant told me.
Gait measurement analysis
On the gait analysis video, I was also able to see one incorrect form on my running which, as the assistant said, can be consciously corrected. That is, on the lifting phase, my feet sways outside which is also due to incorrect toe positioning as it strikes the ground. I know this has been my problem ever since I started running. In my Baguio runs, I always try to keep my toes in the right position, which I tend to forget already. Now I think, this has been the reason of my knee-aching problems. Happy to realize that! :)