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Why riding bikes is a better way to lose weight than jogging.



 
 
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  #41  
Old October 18th 04, 03:56 PM
Terry Morse
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Peter Cole wrote:

"Terry Morse" wrote:

Cycling on the road, as opposed to a stationary bike, induces
vibration, and vibration increases bone density:

http://www.abc.net.au/science/news/h...ish_343550.htm


If that's true, then mountain biking should be even better.


I suspect that you're right. Mountain biking is much rougher -- even
on a full suspension.
--
terry morse Palo Alto, CA http://bike.terrymorse.com/
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  #42  
Old October 18th 04, 06:57 PM
dgk
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On Mon, 18 Oct 2004 07:56:45 -0700, Terry Morse
wrote:

Peter Cole wrote:

"Terry Morse" wrote:

Cycling on the road, as opposed to a stationary bike, induces
vibration, and vibration increases bone density:

http://www.abc.net.au/science/news/h...ish_343550.htm


If that's true, then mountain biking should be even better.


I suspect that you're right. Mountain biking is much rougher -- even
on a full suspension.


I've noticed that mountain biking tends to break bones. Of course, I
wasn't very good at it.
  #43  
Old October 18th 04, 07:34 PM
Peter Cole
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"dgk" wrote in message
...
On Mon, 18 Oct 2004 07:56:45 -0700, Terry Morse
wrote:

Peter Cole wrote:

"Terry Morse" wrote:

Cycling on the road, as opposed to a stationary bike, induces
vibration, and vibration increases bone density:

http://www.abc.net.au/science/news/h...ish_343550.htm

If that's true, then mountain biking should be even better.


I suspect that you're right. Mountain biking is much rougher -- even
on a full suspension.


I've noticed that mountain biking tends to break bones. Of course, I
wasn't very good at it.


No, not true! Well, not after the learning curve period, anyway. I've only
broken ribs twice in 7-8 years. Of course there have been many cuts and
bruises, and a few bad cases of poison ivy, but I'm not worried about
osteoporosis! Seriously, I know as many people who have broken bones on the
road as on the trail. I also think trail skills make you a much better
(safer) road rider.


  #44  
Old October 19th 04, 02:55 PM
Robert Haston
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1. There is no annoying gap between walk and jog speed.

2. Most of your energy is spent blowing wind over you. Jogging in Florida
(particularly downwind) is torture. I've cycled in the most miserable
afternoons, and it only hurts when I stop.


  #46  
Old October 20th 04, 12:22 AM
HardwareLust
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HardwareLust wrote:
Rush wrote:
People
usually have dogs, or fences, or you just don't feel comfortable
cutting through someone's yard.


Don't feel comfortable tresspassing on someone else's property? I
certainly would hope so, but that's not a terribly realistic
statement.


Gotta keep reminding myself, "Do not post when in a bad mood".

My apologies to all.

Regards,
H.


  #47  
Old October 20th 04, 02:15 AM
Terry Morse
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(gds) wrote:

It isn't that you don't burn fat at higher levels of exertion;
what I've understood is that in fact you burn fat even faster at
85% than at 65%.


I've read that absolute fat metabolic rate peaks at around 65-70%
VO2max, then decreases after that. Here's an excerpt from an article
in Velonews:

"At about 25 percent VO2 max, an intensity comparable to walking.
Eighty percent of the energy is supplied by fat in your blood, and a
bit from blood glucose. When your intensity increases to 65 percent
VO2 max (a slow ride or run), fat burning is at it's peak, but only
50 percent of the fuel is supplied by fat, and 50 percent from
glycogen. About half of the total fat fuel comes from muscle fat.
When training increases to 85 percent VO2 max, total fat burning
decreases slightly because fat cannot be utilized quickly enough to
meet energy needs. Only about 25 percent of this energy comes from
fat, mostly from muscle fat. However, highly trained athletes may
actually obtain 75 percent of their energy needs from fat when
training at 70 percent VO2 max. Endurance athletes are better fat
burners ."
http://www.velonews.com/train/articles/3543.0.html

For those who want to improve their performance on long rides/races,
maximizing fat burning is essential to spare glycogen stores. That's
supposed to be one of the reasons for doing all the "zone 2" (66-72%
of max. heart rate) training in the early season.
  #48  
Old October 20th 04, 04:23 PM
gds
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Terry Morse wrote in message ...

I've read that absolute fat metabolic rate peaks at around 65-70%
VO2max, then decreases after that. Here's an excerpt from an article
in Velonews:

"At about 25 percent VO2 max, an intensity comparable to walking.
Eighty percent of the energy is supplied by fat in your blood, and a
bit from blood glucose. When your intensity increases to 65 percent
VO2 max (a slow ride or run), fat burning is at it's peak, but only
50 percent of the fuel is supplied by fat, and 50 percent from
glycogen. About half of the total fat fuel comes from muscle fat.
When training increases to 85 percent VO2 max, total fat burning
decreases slightly because fat cannot be utilized quickly enough to
meet energy needs. Only about 25 percent of this energy comes from
fat, mostly from muscle fat. However, highly trained athletes may
actually obtain 75 percent of their energy needs from fat when
training at 70 percent VO2 max. Endurance athletes are better fat
burners ."
http://www.velonews.com/train/articles/3543.0.html

For those who want to improve their performance on long rides/races,
maximizing fat burning is essential to spare glycogen stores. That's
supposed to be one of the reasons for doing all the "zone 2" (66-72%
of max. heart rate) training in the early season.


OK, but this isn't inconsistent with my point-- I think.
The article you quote talks about percentages of total burned
attributed to fat. But one still needs to calcualte the absolute
amount. So, hypothetically you can burn a smaller percentage from fat
but still burn more fat if your total energy consumptuion is higher by
enough. I don't have the data at my hands but the algebra certainly
works over a large range of values.

Anecdotally folks who ride a lot at the cardio level seem to be leaner
than folks who train mostly at the fat burning level. A riders tend
to be leaner than B who are leaner than C riders etc. So those who are
working harder seem to also be able to burn fat pretty well.(Of course
total training plays a role here as well as intensity)
  #49  
Old October 20th 04, 08:41 PM
the black rose
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gds wrote:
The article you quote talks about percentages of total burned
attributed to fat. But one still needs to calcualte the absolute
amount. So, hypothetically you can burn a smaller percentage from fat
but still burn more fat if your total energy consumptuion is higher by
enough. I don't have the data at my hands but the algebra certainly
works over a large range of values.


I've seen the same sort of figures, somewhere, I can't remember where.
The thing that sticks out in my mind goes something like: at 65% vo2max,
you're burning a higher percentage of fat, but at 75% vo2max, you're
burning a lower percentage but a higher total amount of fat and a lot
more energy. And IIRC, your energy consumption isn't a linear
progression as your percentage of vo2max goes up.

Anecdotally folks who ride a lot at the cardio level seem to be leaner
than folks who train mostly at the fat burning level. A riders tend
to be leaner than B who are leaner than C riders etc. So those who are
working harder seem to also be able to burn fat pretty well.(Of course
total training plays a role here as well as intensity)


Funny how that works, ain't it? *grin*

-km

--
Only cowards fight kids -- unidentified Moscow protester

http://community.webshots.com/user/blackrosequilts
proud to be owned by a yorkie
 




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