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Science Forum Index » Anthropology - Paleo Forum » endurance running nonsense
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| Marc Verhaegen |
Posted: Fri Feb 02, 2007 4:33 pm |
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European Heart Journal 28:183-9
Reduced right ventricular ejection fraction in endurance athletes presenting
with ventricular arrhythmias: a quantitative angiographic assessment
Joris Ector, Javier Ganame, Nico van der Merwe, Bert Adriaenssens, Laurent
Pison, Rik Willems, Marc Gewillig & Hein Heidbüchel 2007
hein.heidbuchel@uz.kuleuven.ac.be
Aims:
Spontaneous or inducible sustained ventricular arrhythmias (VA) in endurance
athletes frequently originate from the right ventricle (RV), even in the
absence of familial arrhythmogenic RV cardiomyopathy (ARVC). The goal of
this study was to determine whether the RV arrhythmogenic predilection in
these patients is associated with RV functional abnormalities.
Methods and results:
Biplane RV angiography was performed in three groups: 22 endurance athletes
with VA, 15 matched athletes without VA, and 10 non-athletes without VA.
Four methods for quantitative RV angiographic analysis (area length, Boak,
pyramid monoplane, and pyramid biplane) were used to calculate RV
end-diastolic volume (EDV) and end-systolic volume (ESV) (both corrected for
body surface area) and ejection fraction (EF). In addition RV outflow tract
shortening fraction (SF) was determined. Although only 6 of 22 (27%)
athletes with VA fulfilled the diagnostic criteria for ARVC, RV
arrhythmogenic involvement was manifest or probable in 82%, based on a
combination of electrophysiologic, electrocardiographic, and morphologic
criteria. RV EDV in athletes was higher than in non-athletes (area length:
100.3 ± 26.9 vs. 69.6 ± 14.3 mL/m2, P = 0.001), without significant
difference between athletes with and without VA. RV ESV, in contrast, was
significantly higher in athletes with VA than in athletes without VA (52.6 ±
22.3 vs. 35.5 ± 11.2 mL/m2, P = 0.004), resulting in a significantly lower
RV EF, a consistent finding across all methods (area length: 49.1 ± 10.4 vs.
63.7 ± 6.4%, P < 0.001). This functional impairment was also reflected in a
lower RV outflow tract SF (SF right anterior oblique 32.2 ± 10.1 vs. 40.0 ±
11.6%, P = 0.09; SF left anterior oblique (LAO) 31.9 ± 7.8 vs. 39.0 ± 10.5%,
P = 0.10).
Conclusion:
VA in high-level endurance athletes frequently originate from a mildly
dysfunctional RV. This raises the question whether endurance exercise not
only acts as a trigger for these arrhythmias but also as promoter of the RV
changes. |
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| Lee Olsen |
Posted: Fri Feb 02, 2007 5:23 pm |
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| Chapstick |
Posted: Sat Feb 03, 2007 12:57 pm |
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"Lee Olsen" <paleocity@hotmail.com> wrote in message
news:1170451411.797027.275910@j27g2000cwj.googlegroups.com...
neither camp here has accounted much for the mosquito, the biggie killer of
humans. i guess we have the sickle cell mutation...
--chap |
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| Marc Verhaegen |
Posted: Sun Feb 18, 2007 7:19 pm |
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"Chapstick" <chapstick@nc.rr.com> wrote in message
news:45c4befd$0$4922$4c368faf@roadrunner.com...
Very graphic I guess, but totally irrelevant:
http://groups.yahoo.com/group/AAT
AAT (shoreline adaptations of the genus Homo) is based on the
behavior-anatomy-physiology-DNA of living humans vs. chimps & other animals.
Sea/lake-side ancestors collecting coconuts, fruits, bird eggs, turtles,
shell-, crayfish, algae etc. explains unique Homo traits (not seen in apes
or australopiths) better than plains- or forest-dwelling : brain size,
diving skills, breath control, vocality, small mouth & chewing muscles,
tongue bone descent, longer airway, projecting nose, poor sense of smell,
handiness, tool use, late puberty, long legs, aligned body, poor climbing,
fur loss, fatness, high needs of water, sodium, iodine & poly-unsaturated
fatty acids etc.
Homo & Pan split ~6-4 Ma. Most likely, Homo populations dispersed along
coasts & rivers, in savannas & elsewhere : in spite of sea level
fluctuations (difficult fossilisation), Homo tools/fossils 2.5-0.1 Ma are
found near Rift valley lakes, Indian Ocean & African coasts : Mojokerto,
Dungo V Baia Farta, Terra Amata, Table Bay, Eritrea etc. (18 km sea crossing
to reach Flores http://allserv.rug.ac.be/~mvaneech/outthere.htm |
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| Mario Petrinovich |
Posted: Mon Feb 19, 2007 1:24 pm |
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I don't understand. Was this shark supposed to eat that human, or
not? As I can see, that shark didn't eat one tiny bit of that human. SHark
could have eaten it, if only it wanted to, it is very graphically shown on
that photo. But, it is also very graphically shown that shark DIDN'T WANT to
eat that human. -- Mario |
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| nickname |
Posted: Thu Feb 22, 2007 6:30 pm |
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On Feb 19, 9:24 am, "Mario Petrinovich"
<mario.petrinov...@zg.htnet.hr> wrote:
Quote: Chapstick:
WARNING: graphic photo of shark-attack victim
http://www.couliercreatures.com/images-bu/stenbite1_bu.jpg
yeah.. that is pretty graphic... uh... thanks i guess..
I don't understand. Was this shark supposed to eat that human, or
not? As I can see, that shark didn't eat one tiny bit of that human. SHark
could have eaten it, if only it wanted to, it is very graphically shown on
that photo. But, it is also very graphically shown that shark DIDN'T WANT to
eat that human. -- Mario
Right Mario, I think everyone will agree that is a good point.
A hippo may also attack and kill a human, but will not consume it, as
hippos are not predators on humans.
DD |
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| Rich Travsky |
Posted: Sun Mar 18, 2007 11:26 pm |
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Marc Verhaegen wrote:
Quote:
European Heart Journal 28:183-9
Reduced right ventricular ejection fraction in endurance athletes presenting
with ventricular arrhythmias: a quantitative angiographic assessment
Joris Ector, Javier Ganame, Nico van der Merwe, Bert Adriaenssens, Laurent
Pison, Rik Willems, Marc Gewillig & Hein Heidbüchel 2007
hein.heidbuchel@uz.kuleuven.ac.be
Aims:
Spontaneous or inducible sustained ventricular arrhythmias (VA) in endurance
athletes frequently originate from the right ventricle (RV), even in the
absence of familial arrhythmogenic RV cardiomyopathy (ARVC). The goal of
this study was to determine whether the RV arrhythmogenic predilection in
these patients is associated with RV functional abnormalities.
Methods and results:
Biplane RV angiography was performed in three groups: 22 endurance athletes
with VA, 15 matched athletes without VA, and 10 non-athletes without VA.
47 total? That's it?
http://www.marathonsinternational.com/
http://www.marathonsinternational.com/images/mainimage.jpg
http://graphics.boston.com/bonzai-fba/AP_Photo/2005/04/18/1113847213_7503.jpg
http://www.limebooks.co.uk/f/marathon_l.jpg
http://daysof47.com:8080/plone/events-2006/images/marathon-10k.jpg
Quote: Four methods for quantitative RV angiographic analysis (area length, Boak,
pyramid monoplane, and pyramid biplane) were used to calculate RV
end-diastolic volume (EDV) and end-systolic volume (ESV) (both corrected for
body surface area) and ejection fraction (EF). In addition RV outflow tract
shortening fraction (SF) was determined. Although only 6 of 22 (27%)
athletes with VA fulfilled the diagnostic criteria for ARVC, RV
arrhythmogenic involvement was manifest or probable in 82%, based on a
combination of electrophysiologic, electrocardiographic, and morphologic
criteria. RV EDV in athletes was higher than in non-athletes (area length:
100.3 ± 26.9 vs. 69.6 ± 14.3 mL/m2, P = 0.001), without significant
difference between athletes with and without VA. RV ESV, in contrast, was
significantly higher in athletes with VA than in athletes without VA (52.6 ±
22.3 vs. 35.5 ± 11.2 mL/m2, P = 0.004), resulting in a significantly lower
RV EF, a consistent finding across all methods (area length: 49.1 ± 10.4 vs.
63.7 ± 6.4%, P < 0.001). This functional impairment was also reflected in a
lower RV outflow tract SF (SF right anterior oblique 32.2 ± 10.1 vs. 40.0 ±
11.6%, P = 0.09; SF left anterior oblique (LAO) 31.9 ± 7.8 vs. 39.0 ± 10.5%,
P = 0.10).
Conclusion:
VA in high-level endurance athletes frequently originate from a mildly
dysfunctional RV. This raises the question whether endurance exercise not
only acts as a trigger for these arrhythmias but also as promoter of the RV
changes. |
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| Rich Travsky |
Posted: Sun Mar 18, 2007 11:41 pm |
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Mario Petrinovich wrote:
Quote:
Chapstick:
WARNING: graphic photo of shark-attack victim
http://www.couliercreatures.com/images-bu/stenbite1_bu.jpg
yeah.. that is pretty graphic... uh... thanks i guess..
I don't understand. Was this shark supposed to eat that human, or
not? As I can see, that shark didn't eat one tiny bit of that human. SHark
could have eaten it, if only it wanted to, it is very graphically shown on
that photo. But, it is also very graphically shown that shark DIDN'T WANT to
eat that human. -- Mario
As you can see the shark didn't know that UNTIL IT HAD TAKEN SOME BITES. |
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| Marc Verhaegen |
Posted: Sat Mar 24, 2007 9:39 am |
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Op 19-03-2007 05:41, in artikel 45FE1485.50BF7945@hotmMOVEail.com, Rich
Travsky <traRvEsky@hotmMOVEail.com> schreef:
Quote: Mario Petrinovich wrote:
Chapstick:
WARNING: graphic photo of shark-attack victim
http://www.couliercreatures.com/images-bu/stenbite1_bu.jpg
yeah.. that is pretty graphic... uh... thanks i guess..
I don't understand. Was this shark supposed to eat that human, or
not? As I can see, that shark didn't eat one tiny bit of that human. SHark
could have eaten it, if only it wanted to, it is very graphically shown on
that photo. But, it is also very graphically shown that shark DIDN'T WANT to
eat that human. -- Mario
As you can see the shark didn't know that UNTIL IT HAD TAKEN SOME BITES.
??
My boy, do you always shout?
Try to be a bit relevant. What has all this to do with AAT??
http://groups.yahoo.com/group/AAT
AAT = shoreline adaptations of the genus Homo.
* Aquatic Ape Theory of human evolution (original term Morgan 1982)
* Aquarboreal Apes Theory of Mio-Pliocene apes (aqua=water, arbor=tree)
* Amphibious Ancestors Theory of Plio-Pleistocene Homo (AAT strict sense)
AAT s.s. is based on the behavior-anatomy-physiology-DNA of living humans
vs. chimps & other animals. Sea/lake-side ancestors collecting coconuts,
fruits, bird eggs, turtles, shell-, crayfish, algae etc. explains unique
Homo traits (not seen in apes or australopiths) better than plains- or
forest-dwelling : brain size, diving skills, breath control, vocality, small
mouth & chewing muscles, tongue bone descent, longer airway, projecting
nose, poor sense of smell, handiness, tool use, late puberty, long legs,
aligned body, poor climbing, fur loss, fatness, high needs of water, sodium,
iodine & poly-unsaturated fatty acids etc.
Homo & Pan split ~6-4 Ma. In spite of sea level fluctuations (difficult
fossilisation), Homo tools/fossils 2.5-0.1 Ma are found near Rift valley
lakes, Indian Ocean & African coasts : Mojokerto, Dungo V Baia Farta, Terra
Amata, Table Bay, Eritrea etc. (18 km sea crossing to reach Flores
http://allserv.rug.ac.be/~mvaneech/outthere.htm ). Most likely, Homo
populations dispersed along coasts & rivers, in savannas & elsewhere.
* Max Westenhöfer 1942 "Der Eigenweg des Menschen" Mannstaede
* Alister Hardy 1960 "Was Man more aquatic in the past?" NS 7:624
* Maggie Roede cs. 1991 "The Aquatic Ape: Fact or Fiction?" Souvenir
* Elaine Morgan 1997 "The Aquatic Ape Hypothesis" Souvenir London
* Marc Verhaegen cs. 2002 "Aquarboreal ancestors?" TREE 17:212
* Stephen Cunnane 2005 "Survival of the Fattest" World Scientific
http://allserv.rug.ac.be/~mvaneech/Symposium.html
http://allserv.rug.ac.be/~mvaneech/Verhaegen.html |
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| Marc Verhaegen |
Posted: Sat Mar 24, 2007 11:42 am |
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Op 19-03-2007 05:26, in artikel 45FE10F3.FC3C444F@hotmMOVEail.com, Rich
Travsky <traRvEsky@hotmMOVEail.com> schreef:
Quote: Marc Verhaegen wrote:
European Heart Journal 28:183-9
Reduced right ventricular ejection fraction in endurance athletes presenting
with ventricular arrhythmias: a quantitative angiographic assessment
Joris Ector, Javier Ganame, Nico van der Merwe, Bert Adriaenssens, Laurent
Pison, Rik Willems, Marc Gewillig & Hein Heidbüchel 2007
hein.heidbuchel@uz.kuleuven.ac.be
Aims:
Spontaneous or inducible sustained ventricular arrhythmias (VA) in endurance
athletes frequently originate from the right ventricle (RV), even in the
absence of familial arrhythmogenic RV cardiomyopathy (ARVC). The goal of
this study was to determine whether the RV arrhythmogenic predilection in
these patients is associated with RV functional abnormalities.
Methods and results:
Biplane RV angiography was performed in three groups: 22 endurance athletes
with VA, 15 matched athletes without VA, and 10 non-athletes without VA.
47 total? That's it?
That is dropping dead when running... |
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| Mario Petrinovich |
Posted: Sat Mar 24, 2007 12:32 pm |
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Marc Verhaegen:
Quote: * Aquatic Ape Theory of human evolution (original term Morgan 1982)
* Aquarboreal Apes Theory of Mio-Pliocene apes (aqua=water, arbor=tree)
* Amphibious Ancestors Theory of Plio-Pleistocene Homo (AAT strict sense)
Also, I have Cliff Hanging Aquatic Ape Theory (CHAAT), which
assumes that we originated on a sea cliffs. -- Mario |
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| Marc Verhaegen |
Posted: Sat Mar 24, 2007 3:46 pm |
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AAT =
Quote: * Aquatic Ape Theory of human evolution (original term Morgan 1982)
* Aquarboreal Apes Theory of Mio-Pliocene apes (aqua=water, arbor=tree)
* Amphibious Ancestors Theory of Plio-Pleistocene Homo (AAT strict sense)
Also, I have Cliff Hanging Aquatic Ape Theory (CHAAT), which
assumes that we originated on a sea cliffs. -- Mario
:-)
We can always produce theories, Mario, but they have to be based upon
evidence. What other animals cliff-hang?
--Marc |
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| Mario Petrinovich |
Posted: Sat Mar 24, 2007 3:54 pm |
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Marc Verhaegen:
Quote: Marc Verhaegen:
AAT =
* Aquatic Ape Theory of human evolution (original term Morgan 1982)
* Aquarboreal Apes Theory of Mio-Pliocene apes (aqua=water, arbor=tree)
* Amphibious Ancestors Theory of Plio-Pleistocene Homo (AAT strict
sense)
Also, I have Cliff Hanging Aquatic Ape Theory (CHAAT), which
assumes that we originated on a sea cliffs. -- Mario
:-)
We can always produce theories, Mario, but they have to be based upon
evidence. What other animals cliff-hang? --Marc
What other animal, except anteater, eats ants? There is no place for
two animals in one niche. So, we can say that the lack of animals in that
niche proves the theory, if you like, : ).
BTW, baboons use kopjes in savanna, and geladas use cliffs. Cliffs
are climbing objects, and we are primates. You have tree hyraxes, and rocky
hyraxes. We have tree primates, and I say that we also have cliff primates.
As a matter of fact, the one primate that doesn't climb trees (even if
comfronted by predators) uses cliffs. There is no reason why some primate
wouldn't explore this empty niche, because this is a primate theritory,
CLIMBING surface. Primates are climbers. -- Mario |
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| Marc Verhaegen |
Posted: Sat Mar 24, 2007 5:45 pm |
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Quote: AAT =
* Aquatic Ape Theory of human evolution (original term Morgan 1982)
* Aquarboreal Apes Theory of Mio-Pliocene apes (aqua=water, arbor=tree)
* Amphibious Ancestors Theory of Plio-Pleistocene Homo (AAT strict
sense)
Also, I have Cliff Hanging Aquatic Ape Theory (CHAAT), which
assumes that we originated on a sea cliffs. -- Mario
:-)
We can always produce theories, Mario, but they have to be based upon
evidence. What other animals cliff-hang? --Marc
What other animal, except anteater, eats ants? There is no place for
two animals in one niche. So, we can say that the lack of animals in that
niche proves the theory, if you like, : ).
Unique things can't prove anything.
All ant/termite-eaters have reduced teeth, suction feeding, long round
tongues etc.
Quote: BTW, baboons use kopjes in savanna, and geladas use cliffs.
Yes, and both are very different from us, don't you think? Any parallels you
see?
Quote: Cliffs
are climbing objects, and we are primates. You have tree hyraxes, and rocky
hyraxes. We have tree primates, and I say that we also have cliff primates.
As a matter of fact, the one primate that doesn't climb trees (even if
comfronted by predators) uses cliffs. There is no reason why some primate
wouldn't explore this empty niche, because this is a primate theritory,
CLIMBING surface. Primates are climbers. -- Mario
But no cliff-hangers.
--Marc
http://allserv.rug.ac.be/~mvaneech/outthere.htm
http://allserv.rug.ac.be/~mvaneech/Fil/Verhaegen_Human_Evolution.html |
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| Mario Petrinovich |
Posted: Sat Mar 24, 2007 10:15 pm |
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Marc Verhaegen:
Quote: What other animal, except anteater, eats ants? There is no place
for
two animals in one niche. So, we can say that the lack of animals in that
niche proves the theory, if you like, : ).
Unique things can't prove anything.
All ant/termite-eaters have reduced teeth, suction feeding, long round
tongues etc.
And we have our pelvis. There were a tons of papers talking how we
are adapted for toe-off phase of walking. This same toe-off phase is crucial
in climbing vertical surfaces. I am saying that fisrt we were clinbers, then
we were walkers. And you have bipedals with midtarsal break. Which other
bipedal doesn't have midtarsal break? Fusing bones of foot, to make stiff
foot which would bear body weight (in toe-off phase) is an adaptation for
climbing vertical surfaces. Just like other adaptations, like
aduction/abduction ability or the shape of our hand, which is good for
manipulation of stone. Which other bipedal creature has our pelvis, pelvis
which shape is a product of muscles that are used in climbing stairs?
Quote: BTW, baboons use kopjes in savanna, and geladas use cliffs.
Yes, and both are very different from us, don't you think? Any parallels
you see?
They are baboons, monkeys of open spaces. Even such non-adapted
climbers (primates) can use cliffs. But, they have to be adapted for
quadrupedal running in open spaces. In my scenario, we should be adapted for
fast climbing of cliffs, as well as for running downhill.
Quote: Cliffs
are climbing objects, and we are primates. You have tree hyraxes, and
rocky
hyraxes. We have tree primates, and I say that we also have cliff
primates.
As a matter of fact, the one primate that doesn't climb trees (even if
comfronted by predators) uses cliffs. There is no reason why some primate
wouldn't explore this empty niche, because this is a primate theritory,
CLIMBING surface. Primates are climbers. -- Mario
But no cliff-hangers. --Marc
We are cliff-hangers. It is obviously when you see that Franchman
who climbs skyscreapers. And, as I said so many times, they tested the moat
around gorilla's place in Boston zoo with humans. If humans cannot climb,
they said, then gorillas also wouldn't be able to climb. -- Mario |
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