On Feb 21, 4:26 am, Tinus <
martijn.weteri...@wur.nl> wrote:
> On 02/21/2013 03:48 AM, sully wrote:
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> > On Feb 20, 3:46 pm, Tinus<
martijn.weteri...@wur.nl> wrote:
> >> On 02/20/2013 06:56 PM, sully wrote:
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> >>> On Feb 20, 7:45 am, John E<
j...@john-ewans-design.co.uk> wrote:
> >>>> I would appreciate comments on hand use in sweep rowing, if I may !
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> >>>> I have been coaching a group of relatively inexperienced rowers and doing the usual 'feather with the inside hand, draw through more with the outside arm' thing and said that I would find some videos to show them this in action. However the videos I have found of high level rowers seem to, at least partly, contradict this.
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http://www.youtube.com/watch?v=x6wHZNWF7pAataround12.40. There is a clear view of ATH's hands and while it looks like he is feathering mainly with his inside hand at the catch his outside wrist does dip significantly at the finish. You can see similar things going on in this US Women's 8 in slow motionhttp://
www.youtube.com/watch?v=3AdraxypQ_U
"people" is almost always me making that response here
on RSR. To be fair, the latter is not what I say. I do say
that the fastest rowers aren't necessarily the most efficient
or technically proficient. There's a subtle difference. There
might be out there, a most efficient way of doing a particular
movement that an elite champion is not doing particularly well.
the cost of that inefficiency, however, is overwhelmed by the
strengths of the other things that athlete might be doing,
or sometimes he/she is so strong as to overwhelm marginal
inefficiencies.
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> I wanted to halt this typical discussion and really look at the wrist
> action and try to reinvent the best; Not using the dogmatic believe that
> the outside wrist should remain flat and not using the common RSR story
> that elite rowers are not always good examples. People have always been
> learned to use the inside wrist for feathering but none is learned why
> you should not use the outside wrist. You use arguments like the inside
> wrist does not need help but you don't use arguments why it is bad if it
> gets help.
I just explained that I have thought this through and why
I think inside hand feathering is marginally more efficient,
I think it allows a slightly more sustained finish. Since
many rowers don't keep blades in sufficiently, however,
that advantage is likely to be moot.
The other reason (which I didn't mention, but I thought
most obvious) for why the inside hand feathers is that at
the finish, it is in a far better position to feather. There is
more room for the wrist to drop if you are pulling in close
to the body, and the the forearm can stay closer to 90
degrees to the oar, making the wrist drop more relaxed.
For the outside hand to feather, the finish is cut off.
no dogma necessary.
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> For a brief moment the outside arm is doing no work. See for instance
> this image:
In the images presented, the release is either completed
or in the process of being completed. If you are drawing
in and keeping pressure on the outside hand, once the
blade has begun to come out of the water, pressure
against the water ceases.
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http://www.tntmagazine.com/image.php/media/content/_master/44312/imag...
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> In that particular image the outside wrist remains flat but there is no
> strong reason why it should remain flat. In the next image you see a
> slightly more bended wrists.
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http://www.worldrowing.com/uploads/files/cd22b373a869c4f5dda13aa7566e...
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> This image also shows that the bend in the wrist isn't really a
> feathering motion. Walter noticed that although the bending doesn't
> really hurt much it may possibly require a larger motion (a larger
> downwards motion is what I imagined). I doubt this. Bending the outside
There must by definition be a downward motion of the handle
at some point during the drive to accomplish the release.
Where this happens defines (to me anyway) how efficient the
finish of the stroke is.
Very flat finishes is an indication that the downward motion
began earlier in the drive, and losing blade efficiency as the
oar comes above the surface more gradually (moving water
instead of boat, or pressure easing up on handle to keep from
washing water).
I assert this is mostly what we see. I know this is true of
the very fine US four you showed in the pic. They do not
have the most efficient finishes they can, few American
crews ever do. In every case of rowers breaking outside
wrists, I see flat finishes. It's, of course, possible to
keep wrist flat and also finish flat,
I've watched many US men and women elites rowing,
some who have medals after 2012 and seen a lot
of basic faults, yes faults, not just quirks.
Some egregious ones in the gold medal eight, by the way,
and frankly that's why they didn't win by another half
length, they just dominate the other eights in pure
athleticism.
To have the most efficient finish, it is best to use your
best lever point (the outside hand) to keep pressure against
the water during the last inches, then the downward motion
made more quickly, still relaxed, but more pronounced.
The difference is wonderfully exhibited in the fantastic
NZ pair. The bowman has more efficient finishes than
stroke. You can see his outside hand make a more
pronounced downward almost "flick" at their high rating,
while the stroke loses a bit with a flatter release.
I would be fascinated to hear Murray/Bond or their coach
comment on it.
no stern wiggle.
I always contend that the rowing motion itself tends to
reinforce certain movements that are less efficient. In sweep
rowing,
> wrist, like in that picture is creating a shorter distance between elbow
> and handle. It means that outside arm requires less backwards motion
> resulting in a more relaxed position. Also bending the wrist allows a
> change of the contact point from the fingers to the palm. With a
> straight wrist you can not push the oar with the palm.
this addresses the 'elbows up, elbows down' debate. I'm not
convinced at all that elbows down is more relaxed, not that
I would assert that elbows up is more relaxed. The elbows
are up to keep pressure on the handle in a stronger position,
you can be equally relaxed in either position.
>
> Bottom line is that this is not just a story of looking at the elite
> rowers and guessing that whatever they do must be good. This is also a
> story of being dogmatically taught that the outside wrist must remain
> flat while it may not be a necessity and possibly an alternative may
> even be better.
I can agree with that. I don't think my offering has been dogmatic,
however.
Want to challenge some dogma on the finish of a sweep stroke?
Here's one from Conn Findlay that I consistently have the pleasure
to discuss with him:
Why do we finish the stroke with as much hand separation?
Why is the inside hand as close to the oarlock?
Why not have both hands closer to the end to use the best
leverage? If you look at rowing previous to the 60s, this
was very prevalent (no,not universal).
Who decided? Why?
Where I do agree with Conn is that we do it because it's done
without really thinking about it. However I have an argument
for why it's done (yes I played with it), that I'll hold off on for
now.