At what point do you notice altitude? (shortness of breath etc.)

Any time I'm going up a hill
4
11%
500-999 metres
0
No votes
1,000-1,399 metres
2
6%
1,400-1,599 metres
2
6%
1,600-1,799 metres
3
9%
1,800-1,999 metres
1
3%
2,000-2,199 metres
2
6%
2,200-2,399 metres
0
No votes
2,400-2,599 metres
4
11%
2,600-2,799 metres
2
6%
2,800-2,999 metres
1
3%
3,000-3,499 metres
7
20%
3,500-4,000 metres
0
No votes
Over 4,000 metres
1
3%
I've never been high enough to know
6
17%
 
Total voters : 35

Re: At What Point Do You Notice Altitude?

Postby inzane on Mon 30/Mar/09 6:03pm

thelivo wrote:The ground starts to get really big really quickly as you fall through about 1000m :thumbsup:


I once fell through a cloud... gets really scary when you can see your shadow and you fall straight through it :crazy:
inzane
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Re: At What Point Do You Notice Altitude?

Postby james on Mon 30/Mar/09 6:11pm

I found riding Brian head @ 3500m was not much harder than durango @ 2000m
However we found but at the start of our Nth America tour in fernie riding at 1000m > 2000m was hard for us sea dwellers
james
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Re: At What Point Do You Notice Altitude?

Postby hdb on Mon 30/Mar/09 8:29pm

I lived in Boulder for a long time (5,400 ft) and rode in Crested Butte a lot (9,300 ft at my place). I generally sucked wind for the first few days but could acclimatise by the end of the first week for most of the local rides. The exceptions were Pearl Pass (12,700 ft) and Molas to Coal Bank near Durango (12,000ft+) - those always wiped me out.

The sad part is how fast you lose the benefit of coming down from altitude - for me it only helped for a few weeks after I moved to Nelson and then I was just another older, slower guy :angry:
hdb
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Re: At What Point Do You Notice Altitude?

Postby Trail on Wed 1/Apr/09 9:57am

Looks like you should take some viagra if you are going to be cycling at altitude :lol:

http://www.the-aps.org/press/journal/06/15.htm
Trail
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Re: At What Point Do You Notice Altitude?

Postby mjc on Wed 1/Apr/09 10:24am

inzane wrote:I lived at 3700m for a couple of years... definitely used to notice dropping to 1000m because the air felt thick enough to chew on!! About 2500 to 3000 I used to notice the thinning of the air and the effect that had on me trying to excercise. Biking from 1000m up and over 4800m make you think the effect you started to notice back at 3000m odd is nothing tho!! :crazy: Fark those last few km towards the top hurt!!


I second all of that!!! have ridden my bike up at 5300 and that really hurts!

The highest I've been is 6,100masl and at that altitude you really struggle for oxygen, but I've never had altitude headaches or anything like that, lucky I guess.

Sleeping at around 5,500m makes you have some seriously wacky dreams though!
mjc
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Re: At What Point Do You Notice Altitude?

Postby happybaboon on Wed 1/Apr/09 6:06pm

Trail wrote:Looks like you should take some viagra if you are going to be cycling at altitude :lol:

http://www.the-aps.org/press/journal/06/15.htm

...compared to the placebo trial...


Must have been hard to do the whole double-blind thing with some cyclists walking round in their lycra with massive bonars :D (unless they used lady cyclists, but that would have been far less amusing science)
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Re: At What Point Do You Notice Altitude?

Postby musket on Wed 1/Apr/09 7:00pm

The AIS begun the current 16 person, 6 week simulated altitude camp with depressurisation to 3000m - I'm guessing that's the point at which it becomes distinctly quantifiable.
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Re: At What Point Do You Notice Altitude?

Postby rogerdodger on Wed 1/Apr/09 7:19pm

Seeing as I just came back from Nepal, I'll add my 2 cents worth. 3000meters is definitely where you feel it. I had a bag of crisps in my backpack that exploded from the change in pressure. At 5500meters my head was killing me as I walked over a high pass and every step took effort.

Personal experiences will differ, and actually its fit people that usually feel the effects of altitude more. Your also more susceptible problems the more you expose yourself to high altitude.

The climbers museum in Darjeeling India was really cool, with artifacts from Hillarys Climb on Everest.

Image
rogerdodger
Member for: 10 years 8 months

Re: At What Point Do You Notice Altitude?

Postby Trail on Wed 1/Apr/09 9:19pm

mjc wrote:
inzane wrote:I lived at 3700m for a couple of years... definitely used to notice dropping to 1000m because the air felt thick enough to chew on!! About 2500 to 3000 I used to notice the thinning of the air and the effect that had on me trying to excercise. Biking from 1000m up and over 4800m make you think the effect you started to notice back at 3000m odd is nothing tho!! :crazy: Fark those last few km towards the top hurt!!


I second all of that!!! have ridden my bike up at 5300 and that really hurts!

The highest I've been is 6,100masl and at that altitude you really struggle for oxygen, but I've never had altitude headaches or anything like that, lucky I guess.

Sleeping at around 5,500m makes you have some seriously wacky dreams though!


We drove a 4wd up to 6100m and it was having trouble getting enough oxygen to run...

Yeh, even 3700m gives you strange dreams!!
Trail
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Re: At What Point Do You Notice Altitude?

Postby Tama on Wed 1/Apr/09 9:36pm

3,000 metres is the number bandied about for proper-like "altitude sickness". But I still maintain that for many people (like me) going from sea level to vigorous exercise at relatively low altitudes (sub-2,000 metres) still brings a noticeable change in breathing etc. (while still in no way approaching the severity of "altitude sickness").

Although at the lower altitudes you acclimatize quite quickly - in hours rather than days :)
Tama
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Re: At What Point Do You Notice Altitude?

Postby scatter on Thu 2/Apr/09 9:29am

Tama wrote:3,000 metres is the number bandied about for proper-like "altitude sickness". But I still maintain that for many people (like me) going from sea level to vigorous exercise at relatively low altitudes (sub-2,000 metres) still brings a noticeable change in breathing etc. (while still in no way approaching the severity of "altitude sickness").


Sure. Altitude affects different people in different ways.
scatter
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Re: At What Point Do You Notice Altitude?

Postby Simonk on Thu 2/Apr/09 10:36am

I reckon you're right Tama. If the AIS are sending trained, elite cyclists to 3000m for optimum training effect, there's bound to be a quantifiable effect at lower altitudes for a lot of people.

{wiki wiki...
"It is hard to determine who will be affected by altitude-sickness as there are no specific factors that compare with this susceptibility to altitude sickness. However, most people can climb up to 2500 meters (8000 feet) normally.

Generally, different people have different susceptibilities to altitude sickness. For some otherwise healthy people, Acute Mountain Sickness (AMS) can begin to appear at around 2000 meters (6,500 feet) above sea level,..."}
Simonk
Member for: 15 years 4 months

Re: At What Point Do You Notice Altitude?

Postby Trail on Thu 2/Apr/09 10:38am

scatter wrote:
Tama wrote:3,000 metres is the number bandied about for proper-like "altitude sickness". But I still maintain that for many people (like me) going from sea level to vigorous exercise at relatively low altitudes (sub-2,000 metres) still brings a noticeable change in breathing etc. (while still in no way approaching the severity of "altitude sickness").


Sure. Altitude affects different people in different ways.


and it affects the same people in different ways at different instances... tis a weird one for sure.
Trail
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Re: At What Point Do You Notice Altitude?

Postby scatter on Thu 2/Apr/09 10:45am

Trail wrote:
scatter wrote:Sure. Altitude affects different people in different ways.

and it affects the same people in different ways at different instances... tis a weird one for sure.

Sure is....one of my former students can trundle up Erebus (3794m) no worries but has issues on Ruapehu (2797m) :blink:
scatter
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