Here’s an interesting invention coming out of Japan. It is a Bionic Knee that promises to make running easier by decreasing 
the amount of muscle power. You just strap it on the side of your leg and a motor helps make running easier.
They are still in the testing phase however, because the thing weighs 11 pounds. Certainly, any reduced energy will be offset by the extra weight.
But this could be the future of running. Can you imagine track and field events where people are allowed to use augmented limbs to go faster? Or football or baseball with enhanced athletes?
That could be cool! Now if only they could make a device to improve a person’s juggling ability.
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It’s not running any more…. Since it doesn’t have wheels, I’m not sure what you would call it, but it ain’t runnin…