Hair Trigger
US Veteran
As many have already said, you need to acclimatize before tackling that hike. You sound like you're in pretty good shape for your age, which is good, but your body still doesn't have the adaptations you need in order to manage fairly extreme exertion at altitudes that high. If you have the opportunity before that hike, do a shorter hike at a lower altitude, say about 8-9 thousand feet, and see how you do. If you manage that, try something a bit higher, and do several before you do Pike's Peak. If you try this before you get acclimated, you're setting yourself up for a miserable time, and a potentially dangerous one. There is a condition called HACE, that can be lethal if it hits you and you don't get immediate treatment. This is High Altitude Cerebral Edema. Google it.She's an experienced hiker and me...not so much, but I am in pretty good shape from lifting weights several days/week, boxing class, dance class, and mountain biking. Anyway in July were going on a whitewater rafting trip in the Royal Gorge and hiking to the top of Pikes Peak the next day which is over 14,000 feet. We will be taking a shuttle down but any ideas on the best way to get in shape for that hike and altitude.
I don't speak as a mountaineer, but as a former military medical aircrew member. FAA requires supplemental oxygen for pilots in unpressurized aircraft at altitudes greater than 12,000 feet, and the effects of hypoxia increase at an accelerating rate as you go higher and partial pressure of oxygen decreases. Just sitting still and breathing without exertion at 18,000 feet, your time of useful consciousness is about 30 minutes at best; with the exertion of walking or doing aerobic tasks, that time decreases by half. At 14,000, you could not count on more than 20-25 minutes of exertion before becoming lightheaded, confused, and unable to make rational decisions. By the time you reached that height, you'd already be fatigued and lightheaded.
The body compensates over time, for those who live, work or otherwise stay at higher altitudes, by making more red blood cells to carry the reduced amount of oxygen to the cells. The other issue is the decrease in exchange in the lungs, due to the reduced pressure gradient of atmospheric oxygen and the partial pressure of oxygen within your lungs and body. This compensation takes several weeks of constant exposure to higher altitude.