My first prosthetic foot was an Ossur Vari-Flex.
It is quit tall at about 17 cm. They make a lower version if height is a problem. Most of my current ankle/feet are about 8cm high.
It weighs almost 600 grams. Lighter than any of my current ankle/foot combinations.
It is a good energy return foot, but it does not handle uneven terrain very well.
I am wearing this foot now, and have been since my hydraulic ankle started leaking.
For walking quickly around the block where I live, it is a very good foot. It is light, and stable, with good energy return.
The one parkrun I like is very flat, but has lots of uneven terrain. Mostly old building rubble. The Vari-Flex does not do well on uneven terrain. If I step on a rock with my toe, then the knee breaks loose to early. If I step on a rock with my heal, then the knee never breaks loose, and when I want the prosthetic foot to be in front of me, it is stuck locked straight behind me.
The other Parkrun I like has a long steep hill. The Vari-Flex does not do slopes very well, and I have to walk sideways up the hill, then walk sideways down the hill.
If you come from a SACH foot, you will think the Vari-Flex is a great foot. If you have ever worn a hydraulic ankle, then you will think is is not so nice.
No comments:
Post a Comment