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  <TITLE>Ask The Expert - January, 1999</TITLE>
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<FONT FACE=Arial, Helvetica, Sans Serif>January, 1999</FONT>
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<img src="http://www.fasst.com/graphics/gif/ask.gif"><BR>
<i><h4> With Barry Publow</h4></i>
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<h2>QUESTION</h2>

When skating, after only a mile the muscles surrounding my shins become
extremely tired, so much so that after another mile I couldn't even
stand up strait, and my skates would flop left to right.  I felt
dangerous, out of control, and worse of all, I physically could not
continue skating!<br>

<h2>ANSWER</h2>

What you are experiencing is quite common, and can usually be rectified
by a change in frame position (see the FaSST Buyer's Guide details on
how to set up your frame).    Positioning the frame so that the
imaginary line between the front and back wheel lies too far inside the
foot's balance point can put undue stress on the muscles at the front
and side of the shin.  Since these muscles control ankle movement (and
therefore affect it's stability), even small adjustments in lateral
frame position can have a dramatic effect.   Most often, shin
pain/discomfort can be alleviated by moving the frame slightly to the
outside (of the foot) in a more "center-set" position.   Move both the
front and back about one millimeter at a time until you feel only a
slight tendency to roll the ankle to the outside.  Try skating, and make
further adjustments as warranted.<br>

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<br>
<br>
<br>
<h2>QUESTION</h2>

"Whenever I train or race I always get a very painful stitch.  Could you
please tell me how to get over it, or what I'm doing wrong".<BR>

<h2>ANSWER</h2>

Sport scientists are still somewhat mystified when it comes to
explaining the "side stitch".  What makes it difficult is that there is
so much variation.  Most researchers who have studied this type of
cramping believe that the pain emanates from a muscle or set of muscles
in the abdomen.  Many such scientists believe the cause to be a spasm in
the diaphragm - a somewhat small muscle separating the chest and
abdominal cavities, and one that is critical for assisting respiration
(breathing).  Some researchers believe that a side stitch on the right
side of the body is the result of such a diaphragm spasm, while a stitch
located centrally or to the left is believed to have a different cause.
There is also some evidence that side cramps can be brought on by
dehydration, nutritional deficiencies, or prolonged exposure to extreme
heat. In any case, however, side stitches seem most clearly related to
the breathing process.<BR>
 
Researchers in sports medicine have focused on two primary methods to
quickly get rid of the right-sided type of side stitch:  (1) Breathing
Technique, and (2) Posture.<BR>


<H3>Breathing Technique</H3>

If the side stitch is caused by a muscle problem related to rapid
breathing, then changes in breathing methods can often help get rid of
the side ache. Some researchers have found that shallow breathers have
more problems with side pain than deep breathers. The next time you get
a side stitch, try slowing down and taking in some really deep breaths.
This technique alone will often bring some relief.  As you pick up the
pace again, add a very deep breath every so often.  Experiment, and try
several different "rhythms" of breathing. Watch for any method that,
after a while, seems to relieve the pain.<BR>

<H3>Posture</H3>

There is a mistaken belief that the side stitch is a malady exclusive to
running.  In truth, any sport which causes you to breathe hard can
stimulate the onset of such pain.  In the case of inline skating,
posture may play a pivotal role in both the occurrence and treatment of
the side stitch.  It is likely that the prolonged "hunched-over"
position of the speedskater interferes with the muscle mechanics of
breathing.  Try changing your upper body posture every so often, perhaps
even standing up every few minutes.   Since posture changes may be most
beneficial in the treatment of side stitches when combined with
adjustments in breathing techniques, the best solution is to
experiment.  This is one area where what works for one person may not
work for another, so take the time to find the solution that is right
for you.   Remember the following guidelines:<BR>

<UL>
	<LI>Strengthen the stomach (abdominal) muscles. 
	<LI>Periodically take deeper breaths. 
	<LI>Stretch the abdominal area before and after each workout.
	<LI>Avoid eating large meals or drinking large amounts of liquid before running hard. 
	<LI>Stay hydrated, and eat a well-balanced diet.
	<LI>Change your trunk position every so often to alleviate pressure on the
		abdominal wall muscles.
</UL>


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<br>
<br>
<br>
<H2>QUESTION</H2>

What is the best way to rotate wheels on a 5-wheel frame and how often
should I do this?<BR>

<H2>ANSWER</H2>

If you rotate your wheels often enough (i.e. every 1-2 weeks) you can
just do it randomly.  This is preferable because you will rotate the
wheels before you have had sufficient time to excessively wear one
wheel.  If you skate a longer period of time before rotating, you are
almost sure to have worn one wheel (usually the toe) much more than the
others.  The idea is to place the most worn wheel where the least worn
is, the least worn where the most worn is, etc. and rotate each whel 180
degrees. The secret to wheel rotation is to spend some time looking at
your individual wear patterns.   Once you know how your wheels wear,
it's relatively easy to know how to swap them around.<BR>


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<br>
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<br>
<H2>QUESTION</H2>

What is the difference between a "low profile" frame and a "high
profile" frame?<BR>

<H2>ANSWER</H2>

<img src="frame.jpg" width="320" height="130" alt="Photos of two 
frames - Mogema low profile and standard 'high profile'"><br>
It is difficult to precisely quantify the difference between high and
low profile frames because there is no standard which all manufacturers
use.   With Mogema, the difference is approximately 5 mm.  What this
means is that the low profile frame brings the boot lower to the
ground.  Advocates of low-profile frames point to the lower center of
gravity and increased stability these frames offer.  As a result, these
are most often chosen by distance skaters and/or those with low-cut
boots (such as a Viking).  For what they give up in stability, high
profile frames offer the benefit of increased pushing leverage and
increased boot clearance on corners.  Although we're only talking about
a few millimeters here, the perceptual and practical difference between
these two frame types is quite remarkable.  <BR>

<br>
<br>
<br>
<br>
<H2>QUESTION</H2>

What are 4-wheel racing frames?<BR>

<H2>ANSWER</H2>
<img src="long4whl.jpg" height=200 width=267 alt="Charger 4 wheel inline 
skate frames on Miller Boots"><br>

These frames are based on a simple concept: Removing one wheel while
maintaining the same wheelbase as a 5-wheel skate should be superior. 
In addition, removal of the middle wheel makes it possible to lower the
frame/boot even closer to the ground.  This is certainly a logical
theory, and 4-wheel frames (primarily Darkstars, made by Built for Speed
in upstate NY) were sporadically seen on the feet of elite racers on the
early 90's.  However, this "fad frame" did not survive long as skaters
seemed to prefer the added traction and security of 5-wheels versus the
lighter 4.   In spite of this, some long distance skaters - who may
benefit more from weight savings than increased traction - still prefer
such 4-wheel frames.  It should be noted that several recently-produced
"klap inline" frames (e.g. Raps) are also 4-wheel.  The reason for this
is not necessarily for weight savings, but because the klap mechanism is
quite bulky and takes up the space needed for the middle wheel.<BR>

<br>
<br>
<br>
<br>
<H2>QUESTION</H2>

I am a 4-wheel skater and have been thinking of buying a pair of 5
wheels racing skates.  Is it much more difficult to skate 5 wheelers?<BR>

<H2>ANSWER</H2>

Skating on a 5-wheel skate is no more difficult than skating on a
4-wheel skate.  In fact the increased wheelbase of a racing skate
increases overall stability, facilitates proper mechanics, and increases
the economy of motion available to the skater.  Because of the longer
wheelbase (13" versus about 9"), there will be considerable perceptual
differences when first moving to a 5-wheel skate.  These are quite
easily overcome with practice and experience.<br>
<br>
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