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crank mechanical or biomechanical innovation
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 Some of the earlier hand cranked trikes used
normal but shorter cranks with rounded pedals or
handles. Did it ever occur to anyone that these do
not have an ineffective dead spot area like that in
normal cycling. That same effect can be reproduced
in normal cycling by some very simple changes in
how you use your muscles, ankles and legs and arms.
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Re: crank mechanical or biomechanical innovation [perfection] [ In reply to ]
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Hey perfection, I guess this post is supposed to be a reference to linear pedaling? Because I started thinking about how you would use a hand-crank cycle (not like they race now but with each crank opposed to each other), and for some reason, although it's not necessarily the same motion, I think it actually jumped into my head how this linear pedaling thing works, and it potentially could make sense.

I have no idea how to describe it though without writing a whole lot of stuff that probably won't make sense.

Can you e-mail your address to me at camelpup@hotmail.com so I can ask you some questions?

I'm now really curious.

Cheers

Camel
Last edited by: camel: Sep 16, 03 11:27
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Re: crank mechanical or biomechanical innovation [perfection] [ In reply to ]
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Mister perfection.

That is what I envision the PC's doing. The reason this is so easy on hand cranks are the arms are used to push and pulling and the antagonist muscles are both aerobic and strong and used to such coordination. The legs are not. PC's change that. If that is how you envision "linear" pedaling, that is what PC'er do.

Frank

--------------
Frank,
An original Ironman and the Inventor of PowerCranks
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Re: crank mechanical or biomechanical innovation [camel] [ In reply to ]
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[reply]
Hey perfection, I guess this post is supposed to be a reference to linear pedaling? Because I started thinking about how you would use a hand-crank cycle (not like they race now but with each crank opposed to each other), and for some reason, although it's not necessarily the same motion, I think it actually jumped into my head how this linear pedaling thing works, and it potentially could make sense.

I have no idea how to describe it though without writing a whole lot of stuff that probably won't make sense.

[reply]

Yes the old style hand cranker used linear
pedaling with his arms, he could get more power by
pushing and pulling than applying pedal power with
his hands in the circular style. By changing the power
generation by the legs to the same technique that
is used by indoor tug o'war competitors and applying
the power to the pedal in same way as they do
from shoe to rubber floor mat, you are half way
there. Then it is only a matter of getting the pulling
and pushing of the arms working with the legs but
like changing to PC's or RC's , it takes time before
it becomes your second natural pedaling style,
the technique that was used by Anquetil with his
pedals toe-clips and straps.
<crowleymet@eircom.net>
I will be going away shortly after this post so I will
not be able to discuss but you can always send it.
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Re: crank mechanical or biomechanical innovation [perfection] [ In reply to ]
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In Reply To:
I will be going away shortly after this post...
Promise?
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Re: crank mechanical or biomechanical innovation [Frank Day] [ In reply to ]
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[reply]
Mister perfection.

That is what I envision the PC's doing. The reason this is so easy on hand cranks are the arms are used to push and pulling and the antagonist muscles are both aerobic and strong and used to such coordination. The legs are not. PC's change that. If that is how you envision "linear" pedaling, that is what PC'er do.

Frank [/reply]
It depends on how you generate the power with
the legs, in this technique the leg produces the
the forward/downward power from 11 to 5 o'clock,
the arm supplies the resistance, it is an extension
of the hand cranking style in order to combine arm
and hip/leg power. No pulling up power of the leg
is used, the pedal is just unweighted.
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