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PostPosted: Thu Sep 01, 2016 1:28 pm 
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there is also part of the optimum cycling technique we refer to as 'ankling'. as might be surmised from the name, as the leg extends down on a bike and fo'rd on a mirage drive, the ankle joint/foot is extended and on the up/back stroke, the ankle joint/foot is flexed. this brings another set of muscles into play, primarily the calf muscles on the extension. dont expect too much on the back stroke from the poor little flexors.


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PostPosted: Thu Sep 01, 2016 4:39 pm 
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Joined: Tue Jun 19, 2007 6:14 pm
Posts: 3323
Location: South Florida
TI_Tom wrote:
Keith, your neoprene boots should fit fine if you adjust the straps.

Of course, I know how to adjust the straps. Maybe I need to clarify what my "neoprene boots" are. Here is a picture of the NRS ATB boot I use. I only use my AI/TI on the ocean, mostly the Gulf of Mexico, but always in saltwater off south Florida. I use these heavy boots because I do not like walking on coral rocks or oyster bars in anything less. For size 12 boot, the straps do not adjust large enough.

Keith

Image

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PostPosted: Thu Sep 01, 2016 6:07 pm 
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Location: Blacklick, Ohio
Chekika wrote:
TI_Tom wrote:
Keith, your neoprene boots should fit fine if you adjust the straps.

Of course, I know how to adjust the straps. Maybe I need to clarify what my "neoprene boots" are. Here is a picture of the NRS ATB boot I use. I only use my AI/TI on the ocean, mostly the Gulf of Mexico, but always in saltwater off south Florida. I use these heavy boots because I do not like walking on coral rocks or oyster bars in anything less. For size 12 boot, the straps do not adjust large enough.

Keith

Image

Gotcha! I didn't know what your boots looked like. What about just fabbing up some larger straps?

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PostPosted: Thu Sep 01, 2016 7:45 pm 
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Hey Ti_Tom, I am NOT going to peddle with both a forward push and rear pull. Forward is enough for me. No need to make special straps when I do not intend to use them for the rear pull!

Keith

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PostPosted: Thu Sep 01, 2016 9:51 pm 
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Chekika wrote:
Hey Ti_Tom, I am NOT going to peddle with both a forward push and rear pull. Forward is enough for me. No need to make special straps when I do not intend to use them for the rear pull!

Keith

Hey, to each their own.

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PostPosted: Thu Sep 15, 2016 11:41 am 
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Location: Paoli Pennsylvania - East Coast USA
PeteCress wrote:
I do not know enough about physics and the ergonomics of paddling/pedaling to explain it.

Flat water, no wind; paddling my surf ski I can catch up with and stay with an extremely-fit, strong, relatively-young guy pedaling a Revo/Mirage Drive.... and I'm older than dirt.

My uneducated guess is that pedaling a Mirage Drive uses fewer and smaller muscles than proper paddling - which uses both the legs and the core muscles of the upper body. ..... After a 1-hour hard workout on my surf ski, my legs are so trashed that I have trouble walking back to my car. ..... Also when paddling and doing intervals, my heart rate quickly rises to over 90% of it's "220-minus-age" max.... whereas I find it quite difficult to get it anywhere near that pedaling my Mirage Drive..... I can do it, but it's not what I would call pleasant.... concentrating all the load on one or two muscles in my legs.
After reading this thread: viewtopic.php?f=11&t=41230, I think I need to walk back my negative impressions of the Mirage Drive vs Paddle power.

I guess the confusing factor is the lack of hull speed equivalency..... maybe it would be clearer if one could put a Mirage Drive in a halfway-paddle-able hull and then A/B the two.

Lacking that, I do have to note that I can hold 4.something or even 5 mph using the Mirage Drive in my AI-2 yet cannot hold 4 using a paddle..... So my negative comments on the Mirage Drive vs Paddle power really do seem to be off-base.

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