Re: RC: Re: Re:overweight an issue? - Weight vs. lean mass

["Susan Garlinghouse" <suendavid@worldnet.att.net>]

Wolfgang, all I can do is report my own findings, which had much better
control and methodology.

And I'm not going to argue *again* that my study says "weight makes no
difference".  My head hurts from banging it against the wall.

Susan G


----- Original Message -----
From: Wolfgang Schwingenheuer <wsabg@t-online.de>
To: Susan Garlinghouse <suendavid@worldnet.att.net>
Cc: <Tivers@aol.com>; <ridecamp@endurance.net>
Sent: Wednesday, July 26, 2000 3:26 AM
Subject: Re: RC: Re: Re:overweight an issue? - Weight vs. lean mass


> Susan Garlinghouse wrote:
>
> > That may work on the treadmill, but under real conditions at a 100-mile
race
> > (where it really counts), it doesn't.  We didn't measure individual
heart
> > rates, but if the horses carrying a heavier rider were at a disadvantage
in
> > recoveries (which, following your theory, they should be), then it
follows
> > that out of several hundred horses, a trend should have showed up,
putting
> > the horses with the heavier riders lower in the placings, lower in
> > completion rate, fewer miles before a pull or *something*.  We didn't
see
> > that, and believe me, I looked.  It might show up in shorter, faster
races,
> > where energetics are a little different, but didn't at Tevis.  The only
> > effect we saw with weight had to do with effect on lameness, but that's
a
> > biomechanical disadvantage, unrelated to metabolism.
> >
> > Susan G
>
> Hi Susan and others,
>
> I have to step in here again. We had this discussion some months ago. I
have a
> study, made from 1974 to 1989 by Dr. Loukie Viljoen (President of ERASA -
> Endurance Ride Association of South Africa). It is called "Investigastion
of the
> influence that weight has on the endurance horses over distances of 80 km
an
> further" ans was published in the ELDRIC-yearbook 1990. This study covers
a
> total of 6408 records in the range of 73 to 125 kg rider weight (a total
of more
> than 12.000 entries at all). Some highlights of this study: average as
well as
> winning speed decreases with an increase of rider weight (for the Top Ten
1 km/h
> loss for every 11.21 kg, for the Top Three 1 km/h for every 8.89 kg),
chance of
> winning also decreases with the increase of weight (a 73 kg rider has a
1.155%
> chance of winning whereas a rider of 125 kg has no chance (of all the 6408
> records)). The study is a very represantative one, with collecting data
over a
> long period of time (15 years), with variantions in terrain, weather,
distance,
> age of rider etc. All rider and horse details are recorded, as well as all
> veterinary details (HR) etc.
> So one can come to the conclusion that weight does matter, especially if
you go
> for Top Ten or winning.
> If one is interested in the study, I can scan and email it, I did this
before
> and it's going to be a rather big file.
>
> Wolfgang + Ninja 11
> Germany
>
>