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I don't know how to describe it.
But it's quite useful, and you might say it's a life-saver
for those who are more active wheelchair users,
those who want to participate in different [? excursions ?]
like--
The leverage freedom chair is a mobility aid
specifically designed for developing countries.
It has a variable mechanical advantage lever drive
train that enables its user to travel
10% to 20% faster on tarmac than a conventional wheelchair,
and off-road like no other mobility aid available.
The user effectively changes gears
by simply moving his hands on the levers-- grasping
high increases leverage, while grasping low increases
rotational speed.
Human upper body power outputs were
used to optimize the drive train geometry for high performance
on a wide range of terrains.
All moving parts on the LFC are made from bicycle components,
making the chair manufacturable and repairable
anywhere in the developing world.
From August 2009 to January 2010,
six LFC prototypes were trialed by mobility aid
users in East Africa.
The trial confirmed that the LFC is more capable off-road
than any other product, and that people with disabilities
from many demographics produce more power with less exertion
using the leverage drive train.
Oh, yeah.
Yeah, the LFC is very useful in the village,
because there are some places that you can't use a vehicle,
and it's expensive.
So it's easier to use.
I can now visit my friends in that village
without difficulty, with a little bit of assistance,
where there are rough roads now.
Under a $50,000 grant from the Inter-American Development
Bank, the next generation LFC will be developed, prototyped,
and trialed in Guatemala starting in the spring of 2010.
This grant will facilitate the testing of 30 LFCs
with Guatemalan wheelchair users,
as well as support the development
of production tooling to manufacture
the LFC on a large scale.
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