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From: <MJAkayaker_at_aol.com>
subject: [Paddlewise] Greenland Stroke Rate
Date: Wed, 5 Apr 2000 20:00:01 EDT
Can anyone give me some guidelines on stroke rate vs speed for greenland 
paddling with day trip loads in the kayak.  I have heard that 60-70 
strokes/min is a good target, but what speed should that produce.  Also, do 
you count a left and right stroke as 1 or does each side count as a separate 
stroke in that 60-70 target range.  In timing strokes on Doug Van Doren's 
"Greendland Style Kayaking" video he appears to be doing 90-95 strokes/min 
(counting right side stroke as 1 and left side as 2, etc.) so even halving it 
does not get in the 60-70 range.  I do not know if you even can time 
accurately off a video or not.

I am currently paddling at about 3.5 knots for 6-12 Nmi trips (average of up 
and back to correct for wind and current). I am trying to figure out if I 
just have poor technique or am just not strong enough to maintain a higher 
stroke rate needed for the 4-4.5 knot rates of the other paddlers who 
consitantly leave me behind.  They paddle Euro style so I can not directly 
compare rates.   I can do 4-4.5 knots for a mile or two with a higher stroke 
rate, but it is really tiring. For reference I am paddling a fiberglass 
Wilderness Systems Arctic Hawk.

Your input would be greatly appreciated.

Mark J. Arnold
MJAkayaker_at_aol.com 
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From: 735769 <735769_at_ican.net>
subject: Re: [Paddlewise] Greenland Stroke Rate
Date: Thu, 6 Apr 2000 07:53:07 -0400
Mark wrote;

> Can anyone give me some guidelines on stroke rate vs speed for greenland
> paddling with day trip loads in the kayak.

(SNIP)

Yes, they can and probably will.

Unfortunately many things influence speed. Most of us have probably seen
people who paddled like they were killing snakes but still could not keep up
with someone paddling along at a slow and stately pace. You can paddle at
the same speed with either a small paddle at a high rate or a large paddle
at a low rate.  Even paddles of the same size have different drag and lift
characteristics and will produce much different force at the same velocity.

The power output of the blade depends largely
upon its velocity in the water. You can, for example, paddle with a rapid
recovery rate (time between emersion and immersion) but still not apply much
power during the power phase. In this respect, stroke rate can be
misleading.

If you insist on using a particular style of paddle then make sure you use
the correct technique (if you can determine which of the "correct"
techniques is "correct"). Also make sure you have sized the blade properly.
I have a simple test that seems to work. If your paddle ventilates (sucks
air
down the back face) at normal touring rate then either you have
inappropriate stroke mechanics or too small a paddle. Conversely, If you
can't get the paddle to ventilate at maximum power output it may have too
much area.

because blade area, stroke technique, biomechanics, etc. influence the
stroke rate you might want to consider first what I like to call the
"natural" cadence. Due
to body size, type, and training every person appears to have a stroke rate
that feels comfortable. You can change the rate by training or you can learn
to live with yourself and fit the paddle and boat to you instead of fitting
you to the paddle and boat. Paddling at either too slow or too fast a rate
seems more tiring than paddling at the "natural" rate. If you feel
comfortable with your current stroke rate then maybe just increasing (or
decreasing) the blade size will help.

Also keep in mind that some boats paddle more efficiently at higher speeds.
If you and your boat begin to "hit the wall" at four knots then you may as
well bite the bullet.  At that point you can train harder or buy a new boat.

You can also take another approach. Learn to live with yourself and your
boat. If your friends think so little of your company that they paddle off
into the horizon then find new friends or paddle alone.  Paddling enjoyment
need not depend upon speed.

Cheers,

John Winters
Redwing Designs
Web site address, http://home.ican.net/~735769





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