82zman said:
In an act of adventure or foolishness (depending on how you look at it) I signed up for the Mt. Evans hill climb in Colorado that starts at about 7500 ft and climbs to over 14k. I live and train near Chicago which is a mere 750ft. I figured Mt Evans would be cold and maybe a little harder to breath but the more research I did on this I am now concerned about Altitude Sickness. I am fairly fit right now and just finished climbing Mt. Mitchell in NC fairly easily but it starts about 1500 ft and finishes at about 6500 ft.
I can get to the ride no more than a day or two before so my question is would it be better to show up the night before or two nights before. I read something somewhere that if you cannot spend a week acclimating(and I cannot) then show up as close as you can to the starting time.
[FONT="]Does anyone out there have experience with training at low altitude and then attempting an event at high altitude? Insights greatly appreciated[/FONT]
I live at 100ft and just completed a 200 mile event that spent most over the day over 7,000ft with some of the 8 passes getting close to 9,000... but there's a significant difference between 9,000 and 14,000ft. One year, I showed upto a similar event several days before and performed significantly worse than I had if I'd showed up late the day before...
But, everyone is different so, as they say, your mileage may vary.
Gearing is key. There's a big difference between a 8% slope at 5000ft and one at 8,500ft when it comes to perceived effort. Transpose that to 14,000ft and what once, at near sea level may not seem too bad, becomes an a$skicker. Look at using a 4 tooth bigger sprocket as a bail out gear, so if a 25 is what you'd use normally on a similar grade at sealevel then a 30 tooth bottom may be your friend. IRD and SRAM (XX mountain) offer 10 speed cassettes that will provide a 32 tooth bottom (will require long cage MTB rear mech but works well with 10speed STI levers). IRD do one that has a 30 (
should work with Shimano standard road rear mech) but has a funky gear spacing for the bottom 3 gears - 25,28,30 IIRC. The SRAM XX cassette is a CNC milled MTB version of the SRAM Red but for mountain bikes and is significantly lighter than the all steel IRD - but, unless you're in the 6% bodyfat range I wouldn't worry about the added weight too much.
Go have fun and take the challenge and try and pace well. If you feel overly dizzy or nauseous - STOP. If you feel disorientated do not try to ride downhill. Sit down, wait for a course marshall or SAG to show up and take it from there. 14,000ft isn't in the altitude range than something really bad should happen to a fit guy, but stupidly riding into something or off the side of a big drop at speed will.
You'll likely be fine and the only effects following the climb will be intense pain and exhaustion.
One point to remember is that you tend to dehydrate faster at altitude. The day before the event drink a little more and if you can, space that extra fluid out evenly throughout the day. Avoid alcohol while at altitude the days before the event too. It might be colder out, due to the elevation, but remember to use some sunscreen too. A good dose of sunburn the day before will also lend itself to being a little dehydrated in addition to being uncomfortable.